Ireland Tax Residency Calculator
Ireland has two day-count routes to tax residency: 183 days this year, or 280 days across this year and last combined (with more than 30 this year). Enter your stays once — the tool works out both year counts and applies both tests. The full rule guide covers what residency actually costs you.
1 · Your days in Ireland
Add your stays in Ireland across this year and last. Being present at any time during a day counts as a full day — arrival and departure days included.
2 · Where you stand
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The lookback is the trap
Most people watch the 183-day line and miss the two-year one. The patterns that get caught:
- Steady commuting — 140 days a year, every year, is resident from year two onward (140 + 140 = 280).
- A heavy year followed by a "light" one — 200 days last year means just 80 this year triggers the lookback.
- The recovery move — after a heavy year, keeping to 30 days or fewer in a calendar year makes you non-resident for that year whatever the previous count, and those days don't count toward the next year's 280 either.
Any part of a day counts — including a late-evening arrival — so midnight-based planning, as under the UK's SRT, doesn't work in Ireland.
Frequently asked questions
183 days in the calendar year, or 280 days combined across the current and previous years — but the lookback only applies if you have more than 30 days in the current year, and a year with 30 days or fewer is left out of the 280. Being present at any time during a day counts as a full day.
Add this year's days to last year's. If the total reaches 280 and you have more than 30 days this year, you're resident this year — even at, say, 140 days per year, a pattern the 183-day test alone would never catch.
Yes — 30 days or fewer in a year means you can't become resident that year via the lookback, no matter how heavy the previous year was. 30 days is the safe floor when you're carrying a big prior-year count.
After three consecutive years of residence you become ordinarily resident from the start of the fourth — and it takes three consecutive non-resident years to shed it. During that tail, Ireland can still tax your worldwide income except income from a trade, profession, or employment carried on wholly outside Ireland and other foreign income of €3,810 or less, so leaving Ireland is a three-year project, not a one-year one.
Your entries are saved only in your own browser (localStorage). We do record usage events that aren't linked to your name, including the day total and the result category the calculator shows, but not the dates of your trips.
Keep the day record this rule needsin
Bounded
- Logs your days in each country automatically
- Exports a dated travel report when you need evidence
- Records border-crossing days in both countries
- Runs alongside your other visa, tax, and residency rules
Sources
For information only. This calculator is a planning aid based on publicly available rules, not tax, legal, or immigration advice. Border officers and tax authorities make the final call — always confirm with the official sources linked above and a qualified professional before acting.