Ireland tax residency calculator
Count your recorded days in Ireland. Review the calculation, the other residence factors and the official sources behind the Irish rules.
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How the Irish rule works
Ireland determines income-tax residence through section 819 of the Taxes Consolidation Act 1997, with two alternative tests. The primary one is familiar: present in Ireland for 183 days or more in the tax year (Ireland uses the calendar year). The second is the two-year aggregation: 280 days or more across this year and the previous one, provided you were present more than 30 days in each year.
The two-year test is what catches the pattern of a medium-length stay every year: 100 days a year looks harmless in any single year, but two consecutive 140-day years make you resident in the second one. A year with 30 days or fewer is excluded from the two-year test.
A day counts if you are present in Ireland at any time during it. Ireland also tracks "ordinary residence" — a longer-horizon concept that persists after you stop being resident — and if two countries both claim you, the Ireland–X treaty tie-breaker decides.
- Taxes Consolidation Act 1997, s 819, Residence of individuals — 183-day and 280-day two-year tests — official text
- Irish Revenue, Residence — determination of residence status — official text
Every calculation above follows the cited publications. If a rule changes, the verification date above is updated — pages with stale dates are flagged for re-verification.
What this calculator does not decide
- Ireland also has the separate concept of ordinary residence: once you have been resident for three consecutive tax years you remain ordinarily resident afterwards, which affects tax scope even in non-resident years. Not modeled here.
- Presence counts any day on which you are in Ireland; days count whether or not you work.
- Under section 819(2), a year with 30 days or fewer is excluded from the two-year test. The calculator applies more than 30 days in each year.
- The separate election to be resident in an arrival year is not modeled. Airside transit and qualifying unavoidable departure delays may exclude days; the ledger does not verify or deduct those exceptions.
- If another country also treats you as resident, the Ireland–X treaty tie-breaker decides.
- This test decides income-tax residence only; Domicile Levy, capital taxes and remittance-basis style treatment follow separate rules.
Ireland residency FAQs
How many days can I stay in Ireland without becoming tax resident?
Fewer than 183 days in the calendar year — but also watch the two-year test: both years must contain more than 30 countable days, and their combined presence must reach 280. Exactly 30 days in the current year does not meet this test, even after 250 days in the previous year.
What is ordinary residence?
It is a separate, stickier concept: once resident for three consecutive tax years you remain ordinarily resident until you have been non-resident for three consecutive years. It affects the scope of taxable income even in years when day-count residence has ended.
Does the day I arrive in Ireland count?
Yes — every day with any presence in Ireland counts, arrival and departure days included.
Does being Irish tax resident mean tax on worldwide income?
Residence is one of two keys: Ireland taxes residents on worldwide income, but non-Irish income of non-domiciled individuals can be taxed on the remittance basis in some cases. Domicile interacts with residence here in ways a day count cannot capture.