PAT Testing Frequency Calculator
Calculate suggested PAT testing intervals by equipment type, environment and usage. These are starting points for your own risk assessment, not HSE figures — INDG236 gives its intervals by equipment type rather than by environment.
Recommended Testing Intervals
Formal Visual Inspection
Combined Inspection & Test
User checks:
Risk Notes
Adjustments Applied
Disclaimer: These are guidelines, not rules. HSE guidance leaflet INDG236 covers “low-risk environments, such as offices, shops, some parts of hotels and residential care homes”, and its Table 1 gives suggested initial intervals by equipment type — eight rows, none of them an environment. This tool works by environment instead, so none of the figures below is an HSE figure and this tool does not claim a source for them; check your equipment classes against Table 1 directly, particularly Class II equipment, where INDG236 is more lenient than the figures here. Actual intervals should be assessed based on your specific risk assessment. The duty holder is responsible for determining appropriate testing frequencies.
Next Steps
Now you know how often to test, make sure the rest of your PAT regime is solid:
- ✓Check your overall PAT compliance — 10 questions, instant score with recommendations.
- ✓Generate a PAT register template — structured spreadsheet covering appliance ID, description, location, class, test date, result and next test date.
- ✓Learn what records to keep — and for how long.
Related Articles
- PAT Testing Frequency Guide: How Often Should You Test?
How testing intervals shift by equipment type and environment.
- PAT Testing Records: What to Keep and For How Long
Learn what records you need to maintain and how long to keep them for compliance.
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