FREE TOOL
UK Statutory Residence Test calculator
Enter your UK days, your number of UK ties, and whether you were UK resident recently. The calculator applies the SRT's automatic tests and sufficient-ties day bands. This is a simplified guide — the full SRT is more subtle. Everything runs in your browser.
How the SRT decides residence
The UK Statutory Residence Test runs in order. The tax year is 6 April to 5 April, not the calendar year.
- Automatic overseas test (non-resident): fewer than 16 UK days if you were UK resident in one of the last three years (a "leaver"), or fewer than 46 days if you were not (an "arriver").
- Automatic UK test (resident): 183 or more UK days.
- Sufficient-ties test: between those, residence depends on your UK days and how many ties you have (family, accommodation, work, a 90-day tie, and — for leavers — a country tie). Fewer days need more ties; leavers become resident with fewer ties than arrivers.
This tool models the day bands and ties. It does not model the work-based automatic tests, split-year treatment, exceptional-circumstances days, or the precise definition of each tie — the real SRT is considerably more detailed.
Not tax advice. This is a simplified v1 of a complex test. Check any outcome against HMRC guidance (RDR3) and a qualified adviser.
Source: HMRC RDR3, Statutory Residence Test. Related: Schengen 90/180 calculator
Embed this calculator
Free to drop into your own site. It runs entirely in the visitor's browser — nothing is sent anywhere. Copy this snippet:
<iframe src="https://spyglassbeacon.com/embed/uk-statutory-residence-test-calculator" width="100%" height="520" style="border:1px solid #E2E8F0;border-radius:12px" title="UK Statutory Residence Test calculator" loading="lazy"></iframe>Please keep the "Powered by SpyglassBeacon" link shown in the embed.
Two clocks at once? Track them automatically
Between the UK's 183-day line and the Schengen 90/180 window, the counting is exactly what SpyglassBeacon is built to do.
Get the app