How “5 years in 9” reckonable residence works

The rule

The Citizenship Act asks for one year’s continuous residence in the State immediately before the date of the application and, during the eight years before that, a total residence amounting to four years. Put together, that’s five years in the last nine:

Only reckonable residence counts: time living in Ireland on a permission that counts, like Stamp 1, 1G, 3 or 4. Time on a student permission, time without permission, and time waiting for a protection decision don’t count.

Explore your window

Add your permissions from your IRP cards. Then slide your application date and watch the 9 years move: the outlined block is your final year, and anything dimmed falls outside the window.

Count backwards from the day you apply

Everything is measured back from your application date. ISD’s own calculator works this way:

• Final year: the 365 days immediately before you apply, or 366 if they include a 29 February.
• Earlier years: 1,460 days in the 8 years before that, plus one day for each 29 February.

Example. If you apply on 2 October 2026, your final year runs from 2 October 2025 to 1 October 2026, and every day of it must count. Your 8 earlier years run from 2 October 2017 to 1 October 2025, and you need 1,461 days of reckonable residence in them, because they include 29 February 2024.

The 4 years don’t have to be in one block

Only the final year has to be unbroken. The 4 years before it are a total.

Example. Tomás worked in Ireland on Stamp 1 from March 2019 to February 2022, spent a year abroad, and came back on a new Stamp 1 in May 2023. On 2 October 2026 his final year is fully reckonable, and his 8 earlier years hold about 1,970 reckonable days: more than the 1,461 he needs. He already meets the rule. Without his first three years, his earliest date would be 15 May 2028.

Old time falls out

The window always covers the 9 years before your application date. When you move the date forward, the start of the window moves forward too.

Example. Had Tomás’s first three years been from 2014 to 2017 instead, they would be more than 9 years old by the time he could use them. His earliest date would still be 15 May 2028, exactly as if those years never happened.

Gaps and what counts

• Time without permission never counts. The Act says residence in Ireland without permission isn’t reckonable. ISD warns that gaps in your permission can make an application ineligible, so renew on time: a renewal made before your card expires runs on from your old expiry date.
• Student time doesn’t count. Residence on a permission to study isn’t reckonable. For most graduates the clock starts with Stamp 1G.
• Protection applicants: only time after you’re granted refugee status, subsidiary protection or permission to remain counts.

Other routes, other numbers

• Spouses and civil partners of Irish citizens: a year of continuous residence on the island of Ireland immediately before you apply, 3 years there in total in the 5 years before you apply, and at least 3 years of marriage or civil partnership, living together.
• People granted international protection: since 8 December 2025, generally 5 years of reckonable residence. Applications received before that date are processed under the previous 3-year rule. The Minister can also waive conditions for refugees.
• EU, EEA, Swiss and UK citizens: no permission dates to calculate. You show your history of living in Ireland with documents instead, if you’ve held that nationality for more than 5 years.

Proving each year

For every year you claim, ISD expects at least one strong official document showing your name, your Irish address and a date in that year, such as an Employment Detail Summary from Revenue or a bank statement with regular transactions, plus supporting documents. Internally it scores each year and needs 150 points: a strong document is worth 100 and a supporting one 50. Score your own years with the residence scorecard.

Common mix-ups

Common questions

Sources