183-day tax residency calculator

Most countries treat you as a tax resident if you spend 183 days or more there in a year. Enter your days to see where you stand. This runs entirely in your browser.

The 183-day rule, briefly

The classic rule: spend 183 days or more in a country during its tax year and you're generally a tax resident there, taxable on your worldwide income. The tax year is usually the calendar year, but not always (e.g. the UK runs 6 April–5 April).

183 is a majority of the year — the idea is that wherever you spend more than half your days is where you “live” for tax. But ties like a home, family or business can make you resident on fewer days.

The 183-day count is only the most common test. Many countries also apply “centre of vital interests”, habitual-abode or tie-breaker rules, and treaties can override day counts. Confirm with a professional.

FAQ

Is 183 days always the rule?

No. It's the most common threshold, but some countries use different counts or additional tests, and tax treaties can change the outcome.

Which days count?

Usually any day you're physically present, often including partial days. Rules vary, so check the specific country.

Tax residency by country →