The IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment is clear: a record of the results of inspection and testing should be kept throughout the life of the equipment. But it does not prescribe exactly how, which leaves room for mistakes.

Here are seven record-keeping errors that create real problems — and how to fix each one.

1. Not Recording Appliance Locations

What goes wrong: Your register lists "Kettle — Russell Hobbs — Passed" but not where the kettle actually is. When it is time to retest, nobody knows which kettle in which kitchen on which floor this entry refers to.

The consequence: Retests get skipped because the tester cannot find the appliance. Equipment moves between rooms or buildings and loses its place in the testing cycle. During an audit or insurance claim, you cannot demonstrate that the specific appliance in question was tested.

How to fix it: Record the location for every appliance — building, floor, room number, or desk reference. Update the location whenever equipment moves. This is the single most overlooked field in PAT registers, and it is the one that makes retesting manageable.

2. Missing Unique Identification Numbers

What goes wrong: Appliances are recorded by description only. You end up with 14 entries that say "Dell Monitor" and no way to tell which is which.

The consequence: Duplicate entries creep in. Appliances get tested twice while others get missed entirely. You cannot match a test record to the physical label on the appliance. If an appliance fails, you cannot confirm which specific unit needs attention.

How to fix it: Assign a unique asset ID to every appliance and label it with that number. The label on the appliance must match the entry in your register. Sequential numbering works fine — PAT001, PAT002, and so on. The format matters less than the consistency.

For guidance on setting up a proper register structure, use the PAT register template generator.

3. Only Recording Pass Results

What goes wrong: The tester records appliances that pass but does not log failures. The register shows a clean sheet, but there is no record of what failed, when it failed, or what action was taken.

The consequence: You lose the ability to demonstrate due diligence. Under the Electricity at Work Regulations 1989, employers must maintain electrical equipment to prevent danger. If a failed appliance causes an incident and your records show no history of failures being identified and addressed, that is a problem.

Fail records also reveal patterns. If a particular model or brand fails repeatedly, that information helps you make better purchasing decisions.

How to fix it: Record every test result — pass and fail. For failures, add: what failed (visual, earth continuity, insulation resistance), what action was taken (repaired, withdrawn, disposed), and the date of that action. A complete record of identified and managed faults is stronger evidence of good practice than a spotless pass record.

4. No Retest Date Field

What goes wrong: The register records the test date but not when the next test is due. Retesting relies on someone remembering to check the register, calculate intervals, and chase up testing.

The consequence: Retests get missed. By the time someone notices, appliances are months or years overdue. The gap in your testing cycle is exactly the kind of thing an insurer or HSE inspector will flag.

How to fix it: Every test entry should include a "next test due" date calculated from the test date and the assigned frequency. This is the field that turns a historical log into a management tool. Review overdue retests monthly at minimum.

5. Inconsistent Testing Frequencies

What goes wrong: Everything gets tested on the same schedule — usually annually — regardless of risk. A desktop PC that sits untouched on a desk gets the same testing frequency as a kettle used 40 times a day.

The consequence: You either over-test low-risk equipment (wasting time and money) or under-test high-risk equipment (creating genuine safety gaps). Neither approach demonstrates a risk-based system, which is what the IET Code of Practice recommends.

The IET Code of Practice is explicit that testing intervals should be based on the type of equipment, its environment, and how it is used. A blanket annual schedule ignores all three factors.

How to fix it: Classify appliances by type and environment, then assign frequencies accordingly. IT equipment in an office might be tested every 48 months. Handheld tools in a workshop might need testing every 6 months. Extension leads in public areas might be annual. Adjust based on your own failure data over time.

For more detail on appropriate frequencies, see our PAT testing frequency guide.

6. Not Keeping Records of Disposed Appliances

What goes wrong: When an appliance is thrown away or replaced, its entry gets deleted from the register. The register only shows currently active equipment.

The consequence: An audit trail gap. If someone asks about testing history for an appliance that has since been disposed of, you have no record. If there is an incident investigation relating to equipment that was in use 18 months ago and has since been replaced, you need to show it was tested during its working life.

The IET Code of Practice states that records should be kept throughout the life of the equipment. Deleting entries for disposed items shortens that record.

How to fix it: Never delete register entries. Mark disposed appliances as "withdrawn" or "disposed" with the date and reason. Archive them separately if you want a clean active register, but keep the historical data accessible.

7. Relying on a Single Person's Knowledge

What goes wrong: One person — usually the office manager or facilities lead — manages the entire PAT register in their head or in a personal spreadsheet. The system works fine until they go on holiday, change roles, or leave the company.

The consequence: When that person is unavailable, nobody knows which appliances are due for testing, where the records are stored, or what the testing schedule looks like. The handover is either chaotic or nonexistent. Months of testing can be missed during transitions.

How to fix it: Store your register in a shared, accessible location. Document the process: who tests, who records, when reviews happen, where records are kept. Make sure at least two people understand the system and can manage it independently.

For a deeper comparison of spreadsheet versus dedicated software approaches, see our article on PAT register templates versus software.

The Common Thread

Every one of these mistakes comes down to the same problem: treating PAT testing records as a box-ticking exercise rather than an active management tool.

Good records do three things. They tell you what has been tested. They tell you what needs testing next. And they give you a defensible audit trail if something goes wrong.

If your current system makes any of these seven mistakes, start by fixing the most critical gap first. For most businesses, that is adding unique IDs and locations to every entry — because without those, the rest of your data is hard to act on.

For a foundation-level overview of what PAT testing involves, see our guide to PAT testing records.

Build Records That Actually Work

PATvault is designed to prevent every one of these mistakes. Mandatory fields for asset IDs and locations. Automatic retest date calculation. Full history — including failures and disposals — that never gets deleted. And shared access so your records do not live in one person's head.

Join the PATvault waitlist to get early access when we launch.

But PAT testing labels are not standardised. There is no single national colour scheme. Different organisations use different colours, different formats, and different amounts of information. This guide explains what the labels mean, what they should include, and how to use them properly.

What PAT Testing Labels Are For

A PAT label serves two purposes.

First, it communicates status. Staff can see at a glance whether an appliance has been tested and whether it passed. A "fail" or "do not use" label warns people not to plug something in.

Second, it connects the appliance to your register. The unique ID number on the label should match an entry in your PAT register. Without this link, your records cannot be tied to specific physical items — and a register full of entries that cannot be matched to real appliances is close to useless.

The IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment recommends labelling tested appliances, though it notes that labelling is not a legal requirement.

What Information Should Be on a PAT Label?

A well-designed PAT testing label includes:

• Unique asset ID — the number that matches your register entry (e.g., PAT0147)
• Test date — when the appliance was last tested
• Next test date — when retesting is due
• Tester name or initials — who carried out the test
• Pass or fail — the test result

Some labels also include the organisation name and a barcode or QR code for scanning into a digital register.

The asset ID is the most important field. Without it, the label is just a sticker. With it, anyone can look up the full test history, location, and specification of that appliance in your records.

For guidance on structuring the register that your labels point to, use the PAT register template generator.

PAT Testing Label Colours: What They Mean

There is no British Standard or regulation that mandates specific colours for PAT labels. Colour schemes vary between testing companies, organisations, and label manufacturers. However, common conventions have emerged:

Green — Pass. The appliance has been tested and met the required standards. It is safe to use until the next test date shown on the label.

Red — Fail / Do Not Use. The appliance has failed testing. It should not be used until it has been repaired and retested, or it should be withdrawn from service.

Yellow/Amber — sometimes used for "tested, requires attention" or for visual inspection only (no full electrical test performed). Usage varies significantly between organisations.

Some organisations use a rotating annual colour scheme — a different colour each year to make it easy to spot appliances that have not been retested. For example: blue for 2025, green for 2026, orange for 2027. This makes overdue items visually obvious during a walkthrough, because any appliance still showing last year's colour has missed its retest window.

The key point: whatever colour system you use, document it. If your green labels mean "pass" and your blue labels mean "tested in Q1," write that down so anyone — including new staff, auditors, or your insurer — can interpret the labels correctly.

Types of PAT Testing Labels

Pass Labels

The standard pass label. Applied after an appliance passes its combined inspection and test. Typically green, includes all standard fields (asset ID, test date, next test date, tester).

Fail Labels / Do Not Use Labels

Applied when an appliance fails testing. Usually red with clear "DO NOT USE" or "FAILED" text. The appliance should be immediately withdrawn from service.

Some organisations apply fail labels and then physically disconnect or isolate the appliance (removing the plug from the socket, cable-tying the lead) to prevent use before repair or disposal.

Visual Inspection Labels

Used when only a visual inspection has been carried out (no electrical tests). Some organisations use a different colour or wording to distinguish these from full combined inspection and test labels.

Cable Wrap Labels

Designed to wrap around power cables rather than stick to the appliance body. Useful for equipment where the casing does not have a flat surface for a standard adhesive label — or where labels on the body would be removed during cleaning.

Are PAT Testing Labels Legally Required?

No. There is no UK law that requires PAT testing labels to be applied to appliances.

However, the IET Code of Practice recommends labelling as good practice. And practically, labels are the only way for staff to identify tested equipment on sight. Without labels, the only way to check whether an appliance has been tested is to look it up in the register — which most people will not do before plugging in a kettle.

Labels also support your PAT testing schedule. During a walkthrough or audit, labelled appliances can be quickly checked against the register. Unlabelled appliances are immediately flagged as either untested or missing from the system.

For the full picture on what is and is not legally required, see our PAT testing frequency guide.

Label Materials and Durability

PAT testing labels need to survive the environment they are placed in. Common materials:

Self-adhesive vinyl — the standard choice for most office and commercial environments. Sticks to smooth plastic and metal surfaces. Durable enough for indoor use but can peel in humid or greasy environments (kitchens, workshops).

Tamper-evident labels — designed to break apart or leave a residue if someone tries to remove them. Useful where there is a risk of labels being swapped between appliances or removed to disguise a fail result.

Cable wrap labels — flexible material that wraps around a cable and sticks to itself. Stays in place better than flat labels on round cables. Harder to accidentally remove.

Write-on vs pre-printed — some labels come with blank fields to be filled in by hand. Others are printed from a PAT testing device or label printer with all test data pre-populated. Printed labels are more legible and harder to alter, but write-on labels work fine for smaller operations.

For outdoor or harsh environments, look for labels rated for UV resistance and waterproofing. Standard indoor vinyl labels will degrade quickly in direct sunlight or heavy moisture.

Connecting Labels to Your PAT Register

The label on the appliance and the entry in your register must tell the same story. Here is how to keep them aligned:

Use sequential, unique numbering. Start at 001 or 0001 and work upward. Do not reuse numbers — even if an appliance is disposed of, retire that number.

Label at the point of test. Apply the new label immediately after testing, not later. Delays create opportunities for mismatched data.

Replace labels at every retest. Old labels should be removed or covered when a new test is completed. An appliance with three overlapping labels is confusing. The current label should be the only one visible.

Include the asset ID in your register as the primary identifier. Every search, every report, every retest reminder should reference this number. It is the thread that ties the physical appliance to its digital record.

For more on building a PAT testing schedule that keeps your labels and register in sync, see our guide to creating a workplace PAT testing schedule.

Tips for Label Management

• Order labels in advance. Running out of labels mid-testing session means either stopping or testing without labelling — both bad options.
• Check label legibility during walkthroughs. Faded, peeling, or illegible labels should be flagged for replacement at the next retest.
• Standardise label placement. Decide where on each appliance type the label goes (e.g., near the power entry point, on the base) and be consistent. This makes walkthroughs faster.
• Train staff to recognise labels. Make sure everyone knows what a red label means and what to do if they find an unlabelled appliance.

For the broader context on PAT testing and why it matters, see our guide to PAT testing records.

Keep Labels and Records in Sync

The biggest label management challenge is keeping physical labels matched to digital records — especially as appliances move, get retested, or are replaced. PATvault uses unique asset IDs as the backbone of your register, so every label number maps directly to a complete test history.

Join the PATvault waitlist to get early access when we launch.

This guide walks you through building a practical PAT testing schedule from scratch — one that fits your workplace and keeps your appliance register current.

If you want the full picture of what PAT testing involves and why it matters, start with our guide to PAT testing records.

Step 1: Audit Your Appliances

You cannot schedule testing for appliances you do not know you have. The first job is a full inventory.

Walk every room, every floor, every cupboard. Record:

• What it is — kettle, monitor, desk fan, phone charger, floor lamp
• Where it is — building, floor, room number or desk ID
• Who uses it — shared, assigned to a person, or communal area
• Class I or Class II — Class I appliances have an earth connection (three-pin metal-bodied items like kettles). Class II are double-insulated (two-pin or marked with the square-within-a-square symbol)
• Condition on sight — any visible damage, frayed cables, cracked plugs

Do not forget personal items staff bring in. Hair straighteners, phone chargers, desk fans — these are portable appliances too, and the Electricity at Work Regulations 1989 (Regulation 4) places a duty on employers to ensure all electrical equipment used at work is maintained to prevent danger.

A typical office of 50 people might have 200-400 portable appliances once you count monitors, chargers, and kitchen equipment.

Step 2: Classify by Risk

Not every appliance needs testing at the same frequency. The IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment groups appliances by risk based on three factors:

Equipment type:

• Handheld appliances (drills, hairdryers) — highest risk
• Portable appliances (kettles, fans, heaters) — medium-high risk
• Moveable equipment (printers, desktop PCs) — lower risk
• Stationary equipment (fridges, vending machines) — lowest risk for portable category
• Fixed equipment (hand dryers, water heaters) — tested less frequently

Environment:

• Construction sites and workshops — harsh conditions, more frequent testing
• Offices — generally benign, less frequent testing needed
• Commercial kitchens — wet environment, higher frequency than standard office

User type:

• Public access (hotels, shops) — more frequent
• Managed workplace — standard frequency

Use our PAT testing frequency calculator to get recommended intervals for each appliance type and environment.

Step 3: Set Testing Frequencies

The IET Code of Practice provides suggested initial intervals. For a standard office environment, these are typical starting points:

These are not legal requirements — they are risk-based recommendations. You can adjust them based on your own failure data over time. If your kettles consistently pass at 12 months, extending to 18 months is reasonable. If extension leads in a busy workshop fail regularly, shorten the interval.

For a detailed breakdown of how often each type of equipment should be tested, see our PAT testing frequency guide.

Step 4: Create a Calendar

With your inventory classified and frequencies assigned, map it onto a calendar.

Group by quarter. Testing everything in one month creates a bottleneck. Spread it across the year:

• Q1 (Jan-Mar): Kitchen appliances, hand-held equipment
• Q2 (Apr-Jun): Extension leads, power strips, portable heaters
• Q3 (Jul-Sep): IT equipment batch 1 (floors 1-3)
• Q4 (Oct-Dec): IT equipment batch 2 (floors 4-6)

Adjust to suit your workplace. The point is that testing becomes a rolling programme rather than an annual event.

Set calendar reminders at least 4 weeks before each testing period starts. This gives you time to book a tester (in-house or external), confirm the appliance list, and notify staff.

Build in a new-starter process. When someone joins and brings equipment, or when new appliances are purchased, they go into the register and get assigned to the next appropriate testing window.

Step 5: Assign Responsibilities

A PAT testing schedule fails if nobody owns it. Define three roles:

Who tests: This could be an in-house trained person or an external contractor. For most offices, a staff member with a one-day PAT testing course and a portable appliance tester is sufficient for Class II visual inspections and basic testing. Complex or three-phase equipment may need a qualified electrician.

Who records: The person doing the testing should record results at the point of test. Delays between testing and recording lead to missing data.

Who reviews: A facilities manager, office manager, or health and safety lead should review the register quarterly. They are checking for missed retests, patterns of failure, and any equipment gaps.

Write these responsibilities into job descriptions or health and safety procedures. When the person responsible leaves, handover must include the appliance register and schedule.

Step 6: Record and Review

Testing without proper records is testing wasted. For each appliance tested, record:

• Unique asset ID (matching the label on the appliance)
• Description and location
• Test date
• Tester name
• Test type (visual inspection, combined inspection and test)
• Results (earth continuity, insulation resistance, functional checks)
• Pass or fail
• Next retest date
• Action taken for failures (repaired, withdrawn, disposed)

Review your data every 6 months. Look for:

• Failure clusters — are certain appliance types or locations producing more failures? Adjust frequency or replace equipment.
• Missed retests — any appliances overdue? Find out why and close the gap.
• Register gaps — new equipment that was never added, or disposed items still showing as active.

This review cycle is what turns a static spreadsheet into an active safety management tool.

Quick-Reference Checklist

Use this checklist when setting up or reviewing your PAT testing schedule:

• Complete appliance inventory with locations and asset IDs
• Every appliance classified by type and environment
• Testing frequencies assigned based on IET Code of Practice guidance
• Annual calendar created with quarterly testing windows
• Named person responsible for testing
• Named person responsible for recording results
• Named person responsible for quarterly review
• New-starter and new-equipment process documented
• Failure and disposal recording procedure in place
• Six-monthly data review scheduled

Keep Your PAT Testing Schedule on Track

The hardest part of a PAT testing schedule is not creating it — it is maintaining it. Appliances move, staff change, equipment gets replaced. A schedule only works if your register stays current.

PATvault is built to handle exactly this. It tracks your appliance register, sends retest reminders before deadlines arrive, and keeps your records audit-ready without manual calendar management.

Join the PATvault waitlist to get early access when we launch.

Here is what the law actually requires, where insurance comes in, and how to manage PAT records across rental properties.

Is PAT Testing a Legal Requirement for Landlords?

Not as a blanket rule. But the answer depends on your property type and what appliances you provide.

The Electricity at Work Regulations 1989 require that electrical systems and equipment are maintained to prevent danger. This applies to workplaces, but private rented properties fall under separate legislation.

The Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 require landlords to have the electrical installations in their properties inspected and tested by a qualified person at least every 5 years (the EICR — Electrical Installation Condition Report). However, these regulations cover fixed wiring, not portable appliances. PAT testing is not specifically mandated by these regulations.

The Landlord and Tenant Act 1985 (Section 9A, as amended by the Homes (Fitness for Human Habitation) Act 2018) requires that properties are fit for human habitation throughout the tenancy. Supplying faulty electrical appliances could breach this duty.

So while no regulation says "landlords must PAT test," the combination of fitness-for-habitation duties and general electrical safety obligations means testing supplied appliances is the practical way to demonstrate compliance.

For a broader overview of PAT testing law, see our guide to PAT testing legal requirements.

HMO Landlords Have Specific Duties

If you manage a House in Multiple Occupation (HMO), the rules are tighter.

The Management of Houses in Multiple Occupation (England) Regulations 2006, Regulation 4(4) requires the manager of an HMO to ensure that all electrical appliances supplied by them are in a safe condition. It also requires that the manager supplies a declaration of appliance safety to the local housing authority on demand.

In practice, this means HMO landlords should:

• PAT test all appliances they supply to tenants
• Keep records of those tests
• Be able to produce those records for inspection

Local authority enforcement officers can and do ask for PAT testing records during HMO licence inspections. Some councils include PAT testing as a condition of the HMO licence itself.

The Insurance Factor

Even where the law does not explicitly require PAT testing, your landlord insurance policy may.

Many landlord insurance policies include a condition that electrical appliances supplied to tenants have been tested and maintained. If a supplied kettle or heater causes a fire and you cannot produce a PAT test record, your insurer may refuse the claim.

Check your policy wording. Look for clauses about:

• Electrical appliance maintenance
• Portable appliance testing requirements
• Record-keeping obligations for supplied equipment

If your policy requires PAT testing and you have not done it, you may be paying for cover you cannot actually claim on.

Which Appliances Do Landlords Need to Consider?

The general rule: if you supply it, you are responsible for it.

Common landlord-supplied appliances that should be PAT tested:

• Washing machines
• Tumble dryers
• Dishwashers
• Fridges and freezers
• Cookers (freestanding electric models)
• Microwaves
• Kettles
• Electric heaters
• Vacuum cleaners (if provided in communal areas)

Fixed electrical appliances like built-in ovens and extractor fans are covered by the EICR, not PAT testing.

Tenant-owned appliances are the tenant's responsibility. You are not required to PAT test a tenant's personal toaster or phone charger. However, you can include a clause in the tenancy agreement requiring tenants to maintain their own electrical appliances in safe condition and to allow visual inspection if concerns arise.

How Often Should Landlords PAT Test?

The IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment recommends annual testing for appliances in rental properties. This is the widely accepted standard.

Annual testing makes sense for rental properties because:

• Tenants change, and each new tenant may use appliances differently
• You cannot monitor daily appliance condition as you would in your own home
• Turnover between tenancies is a natural point to test

At each tenancy changeover, carry out a visual inspection of all supplied appliances at minimum. A full combined inspection and test annually — timed to coincide with the annual gas safety check if possible — keeps everything on one schedule.

Use the PAT compliance checker to see where your current testing approach stands, or try our landlord PAT compliance checklist for a landlord-specific assessment covering inventory, testing, records, insurance, and HMO requirements.

Record-Keeping for Landlords

Good records protect you. For each property, maintain:

• A list of all appliances you supply, with make, model, and serial number
• A unique asset ID for each appliance (matching a label on the item)
• Test date, tester name, and pass/fail result for each test
• Records of any failures and action taken (repair, replacement, disposal)
• Next retest date

Keep records for at least the duration of the tenancy — longer if practical. If a tenant makes a claim for injury or damage from a faulty appliance, your PAT records are your evidence of reasonable care.

For landlords managing multiple properties, a spreadsheet quickly becomes unmanageable. Each property has its own set of appliances, its own testing dates, and its own tenancy cycle. Missed retests across a portfolio of 10 or 20 properties are almost inevitable without a system.

For background on what PAT testing covers and why records matter, see our guide to PAT testing records.

Practical Steps for Landlords

1. Inventory every property. List all appliances you supply at each address. Photograph them and note their condition.

2. Label every appliance. Use numbered PAT labels so each item can be tracked in your records. The label ID links to your register entry.

3. Test annually. Book PAT testing alongside your annual gas safety check to keep one schedule. Use a qualified PAT tester or do it yourself with appropriate training and equipment.

4. Test at tenancy changeover. At minimum, a visual inspection of all supplied appliances before a new tenant moves in.

5. Keep records per property. Each property should have its own section in your appliance register with all test history.

6. Review your insurance policy. Confirm what your insurer requires and make sure your testing schedule meets those conditions.

Managing PAT Records Across a Portfolio

The challenge for landlords is not a single test — it is keeping track of dozens of appliances across multiple properties, each on its own testing cycle.

PATvault is designed for exactly this kind of multi-location record management. Track appliances by property, get retest reminders before deadlines pass, and export records when your insurer or local authority asks for them.

Join the PATvault waitlist to get early access when we launch.

But that's only half the answer. While PAT testing isn't named in any regulation, the electrical safety duties that are legally required make PAT testing the standard way most UK businesses demonstrate compliance. Skip it, and you'll struggle to prove you've met your legal obligations.

Here's exactly what the law says and where PAT testing fits in.

The regulations that create the duty

Four pieces of legislation are relevant. None of them mention PAT testing by name. All of them create obligations that PAT testing helps you meet.

Electricity at Work Regulations 1989

The core regulation. Regulation 4(2) states:

"As may be necessary to prevent danger, all systems shall be maintained so as to prevent, so far as is reasonably practicable, such danger."

"All systems" includes portable electrical equipment — kettles, laptops, extension leads, power tools. "Maintained" means you need an active process for checking that equipment remains safe. PAT testing is the most widely accepted form of that maintenance for portable appliances.

Regulation 4(2) doesn't prescribe how you maintain equipment or how often. That's left to your judgement, informed by the risk level and the IET Code of Practice guidance.

Health and Safety at Work Act 1974

Section 2 places a general duty on employers:

"It shall be the duty of every employer to ensure, so far as is reasonably practicable, the health, safety and welfare at work of all his employees."

This includes the provision and maintenance of safe equipment. If an employee is injured by a faulty portable appliance and you haven't tested it, you'll have difficulty arguing you met this duty.

Provision and Use of Work Equipment Regulations 1998 (PUWER)

PUWER Regulation 5 requires that work equipment is maintained in an efficient state, in efficient working order, and in good repair. Where a maintenance log is kept, it must be kept up to date.

This is arguably the closest the law gets to requiring PAT testing records. If you maintain a log of equipment maintenance — which a PAT register is — PUWER says it must be current. A PAT register with the last entry dated three years ago doesn't satisfy this.

Management of Health and Safety at Work Regulations 1999

These regulations require employers to carry out suitable and sufficient risk assessments. Electrical safety should be part of your workplace risk assessment. PAT testing is a control measure that addresses the risk of injury from faulty portable appliances.

Why PAT testing exists if it's not legally required

The regulations above create a duty to maintain electrical equipment. They don't tell you exactly how to do it. PAT testing fills that gap.

The IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment provides a structured framework: what to inspect, what to test, how often, and how to record results. It's not law, but it's the recognised industry standard. Courts and insurers treat it as the benchmark for "reasonably practicable" maintenance.

In practice: if you follow the IET Code of Practice and keep proper PAT testing records, you've demonstrated compliance with the Electricity at Work Regulations. If you don't PAT test, you need an alternative method of demonstrating that your equipment is maintained — and you'll be hard-pressed to find one that's as well-established or widely accepted.

The insurance requirement

Here's where PAT testing becomes effectively compulsory for most businesses, regardless of what the law technically says.

Most employers' liability insurance policies include conditions around electrical equipment maintenance. The typical requirement is that portable electrical equipment is regularly inspected and tested, and that records are kept. If an incident occurs and you can't produce PAT testing records, your insurer may:

• Refuse the claim
• Increase your premiums
• Decline to renew your policy

Check your policy wording. If it references electrical equipment maintenance, assume PAT testing records are expected. Ask your broker to confirm in writing.

Who needs PAT testing most

Some organisations face higher risk and greater scrutiny:

Employers — Any business with employees and portable electrical equipment. This covers most UK workplaces.

Landlords — Particularly landlords of Houses in Multiple Occupation (HMOs). While the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 focus on fixed electrical installations (requiring 5-yearly EICR inspections), landlords who provide electrical appliances still have a duty under the general safety regulations to ensure those appliances are safe. PAT testing is the accepted method.

Schools and universities — Large inventories of portable equipment, used by students and staff. LEAs and academy trusts typically mandate PAT testing as part of their health and safety policies.

Churches, village halls, and community venues — Equipment is used by multiple groups, often with limited oversight. Insurance policies for these venues almost always require PAT testing evidence.

Public-facing businesses — Hotels, shops, restaurants. Equipment accessible to the public increases liability exposure.

Consequences of not PAT testing

If you don't PAT test and nothing goes wrong, there's no penalty. There is no PAT testing inspectorate. The HSE doesn't audit businesses for PAT testing compliance proactively.

But if something does go wrong:

HSE investigation. After an electrical incident causing injury, the HSE will investigate. They'll ask for your maintenance records. No PAT testing records means no evidence of maintenance. That's a breach of Regulation 4(2) of the Electricity at Work Regulations 1989. In serious cases, prosecution is possible — the maximum penalty for breaching these regulations is an unlimited fine or up to two years' imprisonment.

Civil claims. An injured employee or member of the public can bring a personal injury claim. Your defence depends on demonstrating reasonable care. Without PAT testing records, demonstrating reasonable care for electrical equipment becomes very difficult.

Insurance refusal. As covered above, your insurer may refuse to pay out. You'd be covering the claim yourself.

The cost of a PAT testing regime — even for a medium-sized organisation — is trivially small compared to any of these outcomes.

Common myths about PAT testing

"PAT testing must be done annually"

No fixed frequency is required. The IET Code of Practice recommends different intervals depending on equipment type and environment. Office equipment might need combined inspection and testing only every 48 months. Construction site equipment might need it every 3 months. See our PAT testing frequency guide for the recommended intervals.

"Only a qualified electrician can PAT test"

There is no legal requirement for specific qualifications to carry out PAT testing. The Electricity at Work Regulations 1989 require that the person is competent — meaning they have sufficient knowledge and experience to prevent danger. For basic visual inspection and testing using a PAT tester, a trained facilities manager or office administrator is considered competent. The IET Code of Practice confirms this.

That said, more complex testing — fault-finding on failed equipment, for example — should be left to someone with electrical qualifications.

"Brand-new equipment doesn't need testing"

New equipment from a reputable manufacturer should be safe when purchased. The IET Code of Practice says formal electrical testing isn't necessary before first use. However, a visual inspection is still recommended — check that the plug is wired correctly (if rewirable), the cable is undamaged, and the equipment is suitable for the intended use. Equipment can be damaged in transit or storage.

"PAT testing covers fixed electrical installations"

PAT testing covers portable appliances. Fixed electrical installations — wiring, consumer units, distribution boards — require periodic inspection and testing by a qualified electrician, resulting in an Electrical Installation Condition Report (EICR). These are separate obligations.

The practical position

PAT testing occupies a grey area between legal requirement and industry standard. The law doesn't require it by name, but the legal duties it satisfies are mandatory. Insurance policies typically require it. Courts and the HSE expect it.

For most UK businesses, the question isn't really "is PAT testing legally required?" — it's "can I afford the consequences of not doing it?" The answer, for almost everyone, is no.

Keep your records current, test at intervals that match the risk, and use our PAT compliance checker to identify any gaps in your current regime.

PATvault makes this straightforward — an online appliance register with automatic retest reminders, audit-ready exports, and a simple interface built for the people who actually do in-house PAT testing.

Join the PATvault waitlist → We'll notify you at launch.

This guide helps you make that decision honestly — including when free is genuinely fine.

When a free template is enough

A spreadsheet-based PAT register works well under specific conditions:

• Fewer than 50 appliances — You can scan the whole register in a few minutes. Nothing gets lost in the scroll.
• Single location — No need to coordinate across sites or filter by building.
• One person manages it — No version control issues. No "which copy is the latest?" conversations.
• Retests are infrequent — If you're testing most items every 24-48 months per the IET Code of Practice (see our frequency guide for recommended intervals by equipment type), you might only run a testing session once or twice a year.
• No external audit pressure — You're maintaining records for internal compliance, not producing reports for a property management company or insurance auditor on demand.

If all five of those apply, a well-structured PAT testing records spreadsheet will serve you perfectly. Don't pay for software you don't need.

Download our free PAT register template → It includes all the fields recommended by the IET Code of Practice: appliance ID, description, make/model, location, test date, results, pass/fail, tester name, and next test date.

When you outgrow a spreadsheet

Spreadsheets fail in predictable ways. If any of these sound familiar, you've probably outgrown yours:

Missed retests. You set up conditional formatting to highlight overdue items. It worked for a while. Then someone added rows without copying the formatting. Now some overdue items show up in red and some don't. You found out about two of them when your insurance company asked.

Multiple locations. You started with one sheet. Then you added tabs for each building. Then someone asked for a combined view. Now you have a workbook with 12 tabs and a summary sheet held together by VLOOKUP formulas that break every time someone inserts a column.

Handover problems. The person who built the spreadsheet left. The formulas are undocumented. The new person can enter data, but they don't understand the macros, the dropdown validation lists reference a hidden sheet, and the "print register" button runs a VBA script that hasn't worked since the Office 365 migration.

Audit pressure. Your insurance company, landlord, or a health and safety consultant wants to see your PAT register. You spend two hours reformatting the spreadsheet into something presentable because the working version has half the columns hidden and the print area is wrong.

Multiple testers. Two people now do PAT testing. They both have copies of the spreadsheet. Reconciling them after a testing session takes longer than the testing itself.

These aren't theoretical problems. They're the specific reasons facilities managers start looking for software.

What to look for in PAT testing software

If you decide a spreadsheet isn't cutting it, here's what matters when evaluating PAT testing software:

Retest reminders. The single biggest reason to move from a spreadsheet. Software should automatically flag appliances that are due or overdue for retesting, and notify you by email or dashboard alert. This is the feature that prevents the "we missed 30 retests" problem.

Multi-location support. If you manage equipment across multiple sites, you need to filter and report by location without maintaining separate files.

Export and print. You'll still need to produce printed registers for audits, insurance renewals, and site folders. Check that the software can export a clean PDF or CSV that looks professional without manual reformatting.

Import from existing spreadsheet. You have existing data. You don't want to re-type 200 appliance records. Any reasonable software should let you import from CSV or Excel.

Sensible pricing. Some PAT testing software is designed for professional testers who manage thousands of clients. Their pricing reflects that. If you're managing in-house testing for one or a few sites, look for tools priced for your scale — not enterprise contracts that assume you're a testing company.

Data ownership. Can you export all your data at any time? If you stop paying, what happens to your records? These questions matter more than feature lists.

Comparison: spreadsheet vs. software

Neither option is universally better. The right choice depends on where you sit on the complexity spectrum.

The hybrid approach

You don't have to choose one forever. A practical path:

1. Start with a template. Get your appliance register set up using a free PAT register template. Capture all the fields properly from day one — this makes migration painless later.

2. Use it until it causes friction. If you're spending more time managing the spreadsheet than doing the testing, that's your signal.

3. Migrate to software. Because you structured your data properly from the start, importing into software is a straightforward CSV upload. No re-keying, no data cleanup.

The mistake to avoid: starting with an unstructured spreadsheet (random columns, inconsistent formats, no appliance IDs) and then trying to migrate that mess into software later. Clean data in, clean data out. Read our guide to PAT testing records to make sure you're capturing the right fields from the start.

Making the decision

Ask yourself three questions:

1. Have I missed a retest in the past 12 months? If yes, your current system isn't working for reminders.
2. Does more than one person need to update the register? If yes, you need concurrent access.
3. Do I spend time formatting records for audits or insurance? If yes, you need better export tools.

If you answered yes to any of these, software will save you time. If all three are no, stick with the spreadsheet.

Where PATvault fits

PATvault is being built to bridge the gap between a free spreadsheet and expensive professional PAT testing software. A simple online appliance register with retest reminders, certificate exports, and multi-location support — designed for facilities managers and office administrators who do in-house testing, not professional PAT testing companies.

Import your existing spreadsheet. Get retest reminders. Export audit-ready registers. Free for up to 50 appliances, with paid plans from £3/month.

Join the PATvault waitlist → We'll let you know when it's ready.

This guide gives you the recommended intervals based on the IET Code of Practice, the industry standard for in-service inspection and testing of electrical equipment in the UK.

There is no fixed legal frequency

The Electricity at Work Regulations 1989 require you to maintain electrical equipment to prevent danger. They do not specify how often. The HSE's guidance document INDG236 confirms this — there is no legal requirement for fixed PAT testing intervals.

The IET Code of Practice (5th Edition) provides suggested initial intervals based on equipment type and environment. These are starting points, not rules. You're expected to adjust them based on your own experience and failure data.

For a full explanation of the legal framework, see our guide on what UK law actually says about PAT testing.

Three levels of inspection

Before looking at the intervals, you need to understand the three levels of checking defined by the IET Code of Practice. They're not interchangeable.

User checks — The person using the equipment looks it over before switching it on. Check the cable for damage, make sure the plug isn't cracked, confirm nothing looks burned or melted. No formal recording needed, but staff should know what to look for.

Formal visual inspection — A more thorough visual check by someone competent. Covers the plug wiring (if it's a rewirable plug), the cable condition, the appliance casing, and any signs of overheating or damage. Recorded on your PAT testing record sheet. No test instruments required.

Combined inspection and testing — A formal visual inspection plus electrical tests with a PAT tester. Earth continuity, insulation resistance, and where applicable, protective conductor current or touch current. This is what most people mean by "PAT testing."

Recommended PAT testing intervals

The following table is based on Table 1 in the IET Code of Practice. These are suggested initial intervals. Adjust based on your own data.

Office and shop environments

Industrial and high-use environments

Construction sites

Schools, hotels, and public venues

Equipment in environments with public access — schools, hotels, village halls, churches — generally follows the same intervals as offices, with one adjustment: portable and handheld equipment used by multiple people should be tested more frequently. The IET Code of Practice suggests formal visual inspection every 12 months and combined inspection and test every 24 months for these items.

Environmental factors that shorten intervals

The tables above are starting points. Several environmental factors mean you should test more often:

• Dust and debris — Workshops, bakeries, woodworking shops. Dust gets into ventilation slots and can cause overheating.
• Moisture — Commercial kitchens, laundries, outdoor use. Water and electricity are a well-documented problem.
• Heat — Equipment near ovens, boilers, or in server rooms. Heat degrades cable insulation faster.
• Vibration — Factory floors, construction environments. Vibration loosens internal connections.
• Public access — Equipment used by the general public gets rougher treatment than staff-only equipment.
• Cable strain — Equipment that gets moved frequently (vacuum cleaners, extension leads) suffers more cable damage than equipment that stays put.

If any of these apply, consider halving the standard interval as your starting position and adjusting from there.

How to adjust frequency based on failure rates

This is the part most businesses skip, and it's the most valuable.

After your first round of testing, look at the failure rate. The IET Code of Practice suggests:

• Failure rate below 5% — Your testing interval is probably about right. You could consider extending it slightly.
• Failure rate above 10% — Your testing interval is too long. Shorten it.
• Failure rate approaching 0% — Your interval may be too short. You're spending time and money testing equipment that consistently passes. Consider extending the interval for that category.

Track this over multiple test cycles. If your office kettles fail at 2% over three years of annual testing, switching to 24-month testing is reasonable. If your workshop power tools fail at 15% on annual testing, move to 6-monthly.

This is one reason why recording actual test values — not just pass/fail — on your PAT testing records matters. A downward trend in insulation resistance across several test cycles tells you an appliance is heading toward failure, even if it's still passing today.

Using a frequency calculator

Working out the right intervals for a mixed inventory of equipment across different environments gets complicated quickly. Our PAT testing frequency calculator takes your equipment types and environment details and gives you a recommended schedule based on the IET Code of Practice tables.

It won't replace your own judgement — you still need to adjust based on actual failure data — but it gives you a defensible starting point that you can hand to an auditor.

Keep it simple, keep it documented

The goal isn't to test everything as often as possible. It's to test at intervals that catch problems before they become dangerous, without wasting time on equipment that doesn't need it yet.

Document your rationale. If an auditor asks why you test office monitors every 48 months instead of annually, you should be able to point to the IET Code of Practice Table 1, your own failure rate data, and a written risk assessment. That's a far stronger position than "we test everything annually because that's what the contractor told us."

PATvault tracks recommended retest dates for each appliance based on its type and environment, and sends reminders when they're due. No missed retests, no manual diary entries.

Join the PATvault waitlist → We'll notify you at launch.

This guide covers exactly what your PAT testing records should contain, how long to keep them, and how to organise them so they're actually useful — not just a filing obligation.

Why PAT testing records matter

PAT testing — portable appliance testing — is the process of inspecting and testing electrical equipment to check it's safe to use. Most UK workplaces do it, but here's the part that trips people up: PAT testing itself is not a specific legal requirement.

What is required is that you maintain your electrical equipment to prevent danger. That obligation comes from the Electricity at Work Regulations 1989, specifically Regulation 4(2):

"As may be necessary to prevent danger, all systems shall be maintained so as to prevent, so far as is reasonably practicable, such danger."

PAT testing is the most widely accepted method of meeting that duty. And records are how you prove you've done it.

The Health and Safety at Work Act 1974 adds a general duty of care on employers to ensure, so far as is reasonably practicable, the health and safety of employees. Keeping PAT testing records is part of demonstrating that duty.

The HSE's own guidance document INDG236 confirms that while there's no legal requirement for PAT testing specifically, maintaining electrical equipment and keeping records of that maintenance is best practice — and the expected standard.

What to include on a PAT testing record sheet

The IET Code of Practice for In-Service Inspection and Testing of Electrical Equipment (5th Edition) sets the industry standard for what a PAT testing record should contain. Here's what each entry needs:

Essential fields

• Appliance ID — A unique identifier for each item. This could be a barcode label, asset tag number, or serial number. Consistency matters more than format.
• Description — What the item is. "Kettle" is fine. "Kitchen appliance" is not — you'll have dozens of those.
• Make and model — Helps identify recalls and group similar items for batch testing.
• Location — Where the appliance lives. Be specific: "2nd Floor, Room 204" beats "Upstairs."
• Test date — The date the inspection or test was carried out.
• Type of inspection — Was this a user check, a formal visual inspection, or a combined inspection and test? These are different things (more on this below).
• Test results — Earth continuity, insulation resistance, and any other measurements taken. Record the actual values, not just pass/fail.
• Pass or fail — The overall outcome.
• Tester name — Who carried out the test. If you use external contractors, record their company name too.
• Next test date — When the appliance is due for re-inspection or retesting.
• Notes — Anything relevant: damage spotted, repairs done, appliance removed from service.

Optional but useful fields

• Equipment class — Class I (earthed) or Class II (double insulated). This affects which tests you run.
• Appliance category — Stationary, IT, movable, portable, or handheld. The IET Code of Practice uses these categories to recommend testing intervals.
• Photograph — Useful for identifying unlabelled equipment during audits.
• Disposal date and reason — If the appliance fails and you remove it, record when and why.

A common mistake is recording only pass/fail without the actual test readings. If an insulation resistance reading drops from 200 MΩ to 7 MΩ over two test cycles — still a pass, but heading toward failure — you want to spot that trend. You can only do that if you record the numbers.

How long to keep PAT testing records

There is no statutory minimum retention period for PAT testing records. The Electricity at Work Regulations 1989 don't specify one. Neither does the IET Code of Practice.

That said, the practical recommendation is straightforward:

Keep records for the entire working life of each appliance, plus a reasonable period after disposal.

Here's the reasoning:

1. Civil claims — Under the Limitation Act 1980, personal injury claims can be brought up to 3 years after an incident. But if the injury wasn't immediately apparent, the clock starts from the date of knowledge, not the date of the incident. Keeping records longer protects you.

2. Employer liability insurance — Many insurers require evidence of PAT testing. If an incident occurs and you can't produce records, your insurer may dispute coverage. Some policies have a 6-year retrospective requirement.

3. HSE investigations — If the HSE investigates an electrical incident at your premises, they'll ask for maintenance records. Having a complete history, including records for appliances you've since disposed of, demonstrates a systematic approach to safety.

4. Trend analysis — A record that shows an appliance has been tested and passed 8 times over 4 years is more useful than a single snapshot. Patterns in failure rates help you make informed decisions about replacement cycles.

Practical recommendation: Keep all records indefinitely if using digital storage (it costs nothing). If you're using paper, keep records for at least 5 years after an appliance is disposed of.

The insurance angle

This is the point most people underestimate.

Most employers' liability insurance policies include a condition requiring you to maintain electrical equipment and keep evidence of that maintenance. The exact wording varies by insurer, but the effect is the same: if an employee is injured by a faulty appliance and you can't produce PAT testing records, your insurer has grounds to refuse the claim.

This doesn't just apply to the appliance that caused the injury. Insurers may look at your overall maintenance regime. A complete PAT register covering all your equipment demonstrates due diligence. A patchy one — with gaps, missing dates, and no records for some appliances — raises questions about the whole operation.

If you're responsible for PAT testing, ask your insurance broker exactly what records they expect. Get it in writing. Then make sure your PAT testing record sheet captures everything they need.

Common record-keeping formats

There are three main ways businesses keep PAT testing records. Each has trade-offs.

Paper logbooks

The old-school approach. A bound book or printed forms, filled in by hand after each test.

Works well for: Very small operations (under 20 appliances), single location, one tester.

Breaks down when: You need to search for a specific appliance, check what's overdue for retesting, or share records with an auditor who doesn't want to leaf through a ring binder. Paper records can't send you reminders, and they're vulnerable to loss, damage, and illegible handwriting.

Spreadsheets

The most common approach for in-house PAT testing. A spreadsheet — usually Excel or Google Sheets — with one row per appliance and columns for each field.

Works well for: Up to about 50-100 appliances, especially if one person manages the entire register. Spreadsheets are free, flexible, and familiar.

Breaks down when: Multiple people need to update records, you're managing several locations, or the person who built the spreadsheet leaves and nobody understands the formulas. Version control is a constant headache — which copy is the master? Retest reminders require manual diary entries or formula-based conditional formatting that nobody maintains.

If you want a solid starting point, our free PAT register template generator creates a structured spreadsheet with all the fields recommended by the IET Code of Practice.

Dedicated software

Purpose-built tools for managing PAT testing records. These range from apps designed for professional PAT testers (often overkill for in-house use) to simpler appliance registers aimed at facilities managers.

Works well for: Organisations with 50+ appliances, multiple locations, or more than one person involved in testing. Software handles retest scheduling, record searching, and report generation automatically. If you're weighing up whether to stick with a spreadsheet or switch to software, our template vs software comparison walks through the decision.

Breaks down when: The cost doesn't justify the volume. If you have 15 appliances in a single office, dedicated software is probably more than you need.

For a deeper comparison of the trade-offs, consider the volume of appliances, number of locations, and whether multiple people need access to the records.

How to organise your PAT register

There are two main approaches. Pick one and stick with it.

By location

Group appliances by where they are: Building A → Floor 2 → Room 204. This makes physical walkthroughs efficient. When you're testing, you work room by room and the register follows the same order.

Best for: Multi-site organisations, facilities managers doing walkthrough-style testing, and anyone who needs to quickly answer "what equipment is in this room?"

By appliance type

Group appliances by category: all kettles together, all monitors together, all extension leads together. This makes it easy to apply consistent testing intervals across similar equipment.

Best for: Organisations with large numbers of identical items (e.g., a university with 500 monitors), or when you want to batch-test all items of one type.

The hybrid approach

Most organisations with more than one location end up using a hybrid: organised primarily by location, with the ability to filter or sort by appliance type. This is hard to do well in a paper logbook, manageable in a spreadsheet, and straightforward in software.

User checks, formal visual inspections, and combined inspection and testing

The IET Code of Practice defines three levels of inspection. Your records should distinguish between them:

1. User checks — Done by the person using the equipment, before each use. Look for obvious damage: frayed cables, cracked plugs, burn marks, loose connections. These don't usually need formal recording, but it's good practice to train staff on what to look for.

2. Formal visual inspection — A more thorough visual check by a competent person. No test instruments needed. Covers the appliance, the plug, the cable, and the connection. This should be recorded on your PAT testing record sheet.

3. Combined inspection and testing — A formal visual inspection plus electrical tests using a PAT tester. Earth continuity, insulation resistance, and (where applicable) earth leakage. This is what most people mean when they say "PAT testing." Always recorded.

Recording which type of inspection was done matters because the recommended intervals differ. An appliance might need a formal visual inspection every 12 months but a combined inspection and test only every 48 months. If your records don't distinguish between the two, you can't schedule them correctly.

Practical checklist: setting up your PAT testing records

Use this as a starting point. Adjust to fit your organisation.

• Choose a format — Paper, spreadsheet, or software. If you have fewer than 50 appliances and one tester, a spreadsheet template is a reasonable starting point.
• Label every appliance — Assign a unique ID and attach a physical label (barcode sticker, printed tag, or write-on label). An appliance without an ID can't be linked to its test record.
• Record all fields from the IET Code of Practice — At minimum: appliance ID, description, location, test date, results, pass/fail, tester, next test date.
• Record actual test values, not just pass/fail — You'll thank yourself when trending data reveals a failing appliance before it actually fails.
• Set retest dates based on risk, not a blanket annual schedule — The IET Code of Practice provides recommended intervals by appliance type and environment.
• Include disposal records — When an appliance fails and is removed, record the date and reason. Don't just delete the row.
• Back up your records — If digital, use cloud storage or automatic backups. If paper, consider photographing completed pages.
• Review annually — Check for appliances that have been missed, records that are incomplete, and patterns in failure rates.
• Check your insurance requirements — Ask your insurer exactly what PAT testing records they expect. Match your record sheet to their requirements.
• Run a compliance check — Use our PAT compliance checker to identify gaps in your current records.

Where PAT testing records fit in the legal picture

PAT testing records don't exist in isolation. They're one part of a broader electrical safety regime. If you're unsure about the legal framework — specifically whether PAT testing is required at all — the key regulations to understand are the Electricity at Work Regulations 1989 and the Health and Safety at Work Act 1974.

The short version: PAT testing isn't legally mandated by name, but the regulations do require you to maintain electrical equipment and, in practice, PAT testing is the accepted way to demonstrate compliance. Records are how you prove it happened.

Get your PAT register right from the start

Setting up a PAT testing record sheet properly takes a few hours upfront. Getting it wrong — or not doing it at all — can cost you months of remedial work when an auditor, insurer, or HSE inspector asks to see your records.

If you're starting from scratch, grab our free PAT register template and work through the checklist above.

If you're already managing a register but finding it hard to keep on top of retests, version control, and multi-location tracking — PATvault is being built for exactly this problem. A straightforward online appliance register with retest reminders, certificate exports, and a clean interface designed for facilities managers, not electrical engineers.

Join the PATvault waitlist → We'll let you know when it's ready. No spam, just a launch notification.