UK ILR 180-Day Absence Rule Explained: How the Rolling Window Works

The 180-day absence rule is one of the most misunderstood requirements in UK immigration law. Many applicants assume it works like a calendar year — it does not. It works on a rolling basis, and getting it wrong can delay your ILR application by years.

Use our free ILR absence tracker to calculate your eligibility date and check your rolling windows without manual spreadsheet work.

What the rule actually says

Under Appendix Continuous Residence, you must not have been absent from the UK for more than 180 days in any rolling 12-month window during your qualifying period. The Home Office checks every possible 12-month window — not just January to December — which is why the rule catches people who think their absences are spread across two different years.

Why calendar year thinking gets people refused

Consider this scenario: you travel for 100 days in November and December of one year, then 100 days in October and November the following year. You might assume each calendar year has 100 days — well within the limit. But the November-to-November rolling window contains both trips: 200 days in total. That is a breach.

This is the single most common reason ILR applications are refused or delayed. The Home Office uses Border Force entry and exit records as the authoritative source. They run the same rolling-window check automatically.

How to count absence days correctly

The UKVI convention for counting absence days is:

• The day you depart the UK counts as a day absent
• The day you return to the UK does not count as a day absent — you are back in the UK

Example: you depart on Monday and return on Friday. Your absence days are Monday, Tuesday, Wednesday, and Thursday — four days. Friday does not count.

This means the formula is simply: return date − departure date. No plus one, no minus one.

A worked example of the rolling window

Suppose you hold a Skilled Worker visa granted on 1 June 2021 and have taken the following trips:

• 1 August 2022 – 10 November 2022: 101 days
• 15 September 2023 – 10 January 2024: 117 days

Viewed by calendar year: 101 days in 2022, 107 days in 2023, 10 days in 2024 — all under 180. But the rolling window from 1 August 2022 to 31 July 2023 captures 101 days (trip 1) plus the days of trip 2 that fall before 31 July 2023 (15 September to 31 December = 107 days). That is 208 days — a breach.

Use the free ILR absence tracker to check every rolling window automatically.

The 28-day early application window

You do not have to wait until your exact qualifying period end date. You can apply up to 28 days before your qualifying period completes. This gives you a small buffer to get your documents together without losing your eligibility date if UKVI takes time to process.

What happens if you breach the 180-day rule

A breach of the 180-day rule in any rolling window is treated as breaking continuous residence. In most cases this means your qualifying period restarts from zero — or more precisely, from the date the breached window ends, which is 12 months after the window that contained the breach.

The Home Office has very limited discretion to overlook breaches. The main exception is where absences were caused by a serious or compelling reason — serious illness, a family emergency, or circumstances beyond your control — and you can document them thoroughly. But this is not guaranteed and you should not rely on it.

If you believe you may have breached the 180-day rule, consult an OISC-registered immigration adviser before applying.

EU Settlement Scheme — different rules

If you applied under the EU Settlement Scheme, the rules are more generous. The EUSS does not apply the same rolling 180-day window. Instead, no single absence should exceed 6 months (approximately 183 days) in any 12-month period. A single absence of up to 12 months is permitted if it was for an important reason (work, study, serious illness, or military service). The ILR tracker flags EUSS absences over 183 days automatically.

How to track your absences

The safest approach is to log every trip throughout your qualifying period, not just at the end. Keep copies of boarding passes, hotel receipts, and passport stamps. The VisaVault ILR tracker lets you log trips, checks every rolling 12-month window automatically, and shows you exactly how many days you can safely travel before your next trip.