Rulebook / Residence & citizenship / Ireland
Ireland citizenship — reckonable residence
- Day threshold
- 1825 days
- Window
- Rolling 3287 days
- Direction
- Floor — reach at least
- Counts
- Days in Ireland; arrival and departure days both count
- Authority
- Department of Justice — Immigration Service Delivery
Ireland citizenship — reckonable residence requires at least 1825 days in Ireland in any rolling 3287-day period. You are trying to reach the number, not stay under it. Five years reckonable residence in the previous nine, including one continuous year immediately before applying. Only time on a qualifying permission counts, which this counter cannot check.
Who it applies to
This matters most if you are:
- A permanent resident who travels often and must protect the status they already hold.
- An applicant counting physical presence toward residence or a passport.
- Anyone who will have to evidence their days to an immigration authority at renewal or application.
The rule — and why it exists
Days in Ireland. At least 1825 days in Ireland in any rolling 3287-day period — written as >=1825 / 3287.
Why it exists: residence and citizenship are granted to people who actually live in the country. Presence requirements and absence caps are how that is measured rather than asserted.
Counting the days
- On any given day, look back over the 3287 days ending on that day (that day included).
- Count every day you were physically in Ireland in that span. Partial days count as full days.
- The total must reach 1825. Repeat for every day — there is no reset date.
- A day only stops counting once it is more than 3287 days old. Leaving and returning changes nothing.
The free calculator below counts this rule with the same engine the Dwelltime app ships.
Check it with the free tool
Examples
Example 1 — 1204 days inside, checked at the end of the window
Stays: Ireland 2026-03-01 → 2029-06-16. Checked on 2029-06-16.
Result: Days in Ireland: 621 more days needed (1204 of 1825 in Ireland), earliest 2031-02-27.
Example 2 — 1825 days used, then trying to return
Stays: Ireland 2026-01-01 → 2030-12-30. Checked on 2031-01-30.
Result: Days in Ireland: reached — 1825 of 1825 days in Ireland.
Example 3 — Two separate stays that add up past 1825
Stays: Ireland 2026-01-01 → 2028-12-30; Ireland 2030-07-02 → 2033-06-30. Checked on 2033-06-30.
Result: Days in Ireland: reached — 2190 of 1825 days in Ireland.
Exceptions & edge cases
- Absences with permission. Some regimes disregard absences approved in advance or forced by illness; record them and check the source.
- Continuity vs. totals. Some rules require both a total and no single absence over a limit; both must hold.
- Evidence. Authorities may ask for stamps, boarding passes or statements — keep the source of every day.
Common misconceptions
- "Hitting 1825 days is automatic." Not quite — the count meets the day test; the remaining conditions still apply.
- "It resets when I leave." No. Days age out one at a time, 3287 days after they happened.
- "Arrival day doesn't count." Any part of a day inside is a day inside.
Frequently asked questions
Is the 1825-day count per calendar year or rolling?
Rolling 3287 days. The window rolls forward one day at a time.
Do arrival and departure days count?
Yes — any part of a day counts as a day.
Where does this rule come from?
Department of Justice — Immigration Service Delivery: Citizenship by naturalisation. The link is verified on every build; if it stops resolving the build fails.
This rule is tracked in
Dwelltime
- Counts your days for this rule from the trips you record
- Shows the last safe day, or the days still needed, before you book
- Explains every counted day and every uncounted one
- Runs alongside your other visa, tax and residency rules
Sources
Related rules
- 🇮🇪Ireland short stayIreland is not in Schengen. Days here do not spend Schengen allowance, and Schengen days do not spend this one.
<=90 / VISIT - 🇮🇪Avoid Ireland tax residencyAlso resident if present 280 days across the current and previous tax year, with at least 30 days in each — not covered by this counter.
<=182 / YEAR - 🇮🇪Become Ireland tax residentAlso resident if present 280 days across the current and previous tax year, with at least 30 days in each — not covered by this counter.
>=183 / YEAR
For information only. This page is a plain-English summary of publicly available rules, not tax, legal or immigration advice. Rules change and depend on your personal circumstances — always confirm with the official source above and a qualified professional before acting.