ILR Absence Calculator Guide: How to Count Days & Pass the 180-Day Test

How absences are counted

Each absence is calculated as whole days away from the UK. The day you leave and the day you return are not counted as absences. If you left on 10 January 2024 and returned on 15 January 2024, that counts as 4 days of absence (11 to 14 January). The calculator uses the same convention.

Merging overlapping trips

When trips overlap or touch, merge them before adding up totals so that no day is counted twice. The online absence calculator merges overlapping trips for you.

Step-by-step process

1. Collect passport stamps and boarding passes.
2. List your trips in chronological order.
3. Merge overlaps and restrict the list to the qualifying period only.
4. Check every rolling 12-month window. No single window should exceed 180 days of absence.

Worked example

Suppose your qualifying period runs from 1 September 2019 to 1 September 2024 and you made three trips abroad:

• January 2020: 20 days
• September 2021: 60 days
• April 2023: 100 days

The calculator flags any 12-month window that breaches the 180-day rule.

One authoritative source

For the government’s official guidance on absences and continuous residence, see the GOV.UK ILR page: GOV.UK: ILR continuous residence rules.

Quick checklist

• Keep detailed travel records (passport stamps, e-tickets).
• Save payslips and P60s to show continuity of work.
• Use the ILR eligibility calculator to confirm your absence totals.

Related guides

• Continuous Residence Guide: 5 and 10 year rules explained
• Settlement Route Eligibility Guide: choose the right path
• Visa Points Calculator Guide: official points matrix explained

Detailed trip counting rules

To calculate absences accurately for an Indefinite Leave to Remain application you need to apply the Home Office’s specific rules. The most basic is that only full days spent outside the UK count as absences. If you cross the UK border at any point during a calendar day, that day counts as a day of presence. This applies to land travel, sea crossings and international flights.

For example, if you drive to France via the Eurotunnel, leaving the UK on a Wednesday morning and returning on Thursday evening, you have spent no full days outside the UK, so the official absence count for the trip is 0. You should still log the trip so that the Home Office sees a complete history, noting departure and arrival times to show you were present in the UK on both days.

Travel within the Common Travel Area (CTA)

A highly specific rule that is often misunderstood concerns travel within the Common Travel Area (CTA), which comprises the United Kingdom, Ireland, the Isle of Man and the Channel Islands. There are generally no passport controls between the UK and the rest of the CTA, but that does not mean time spent in Ireland or the Channel Islands counts as time in the UK.

A weekend in Dublin is an absence from the UK and must be logged in your travel record. Because these trips leave no entry or exit stamps, you must be extremely diligent about keeping alternative evidence such as boarding passes, ferry tickets and hotel bookings. Caseworkers use these records to verify that you stayed within the rolling limits.

Compiling your global travel log

For migrants who travel frequently for business or leisure, compiling a 5-year or 10-year travel log is a major challenge. The best approach is to keep a running spreadsheet from the day you arrive in the UK. If you have not done this, you will need to audit your history manually. Start by searching your email for flight confirmations, hotel bookings and calendar invitations.

Then go through your physical passports page by page and record the dates of every entry and exit stamp. Many countries now use digital gates (the EU Schengen gates and UK eGates, for example) and do not stamp passports. In those cases your digital footprint, such as bank transactions in the destination country, email records and boarding passes, is what verifies your travel dates.

Exemptions to the 180-day rule

For some groups and scenarios the 180-day rolling limit is relaxed or does not apply. Researchers and academics on qualifying visas who carry out research abroad are exempt from the absence rules, provided the travel related to their UK employment. People working on emergency relief efforts or posted overseas on Crown service are similarly protected.

For general applicants the main exemption is “serious or compelling circumstances”. This requires clear evidence that the absence was beyond your control. If your flight was cancelled because of a strike or natural disaster, provide the airline’s cancellation notice, the rebooked tickets and any local accommodation bills to show that you returned to the UK at the earliest opportunity.

HMRC records and SAR travel history requests

If there are gaps in your memory of your travel, submit a Subject Access Request (SAR) to the Home Office under data protection law. The Home Office is legally required to give you a copy of your personal file, which includes the electronic records of your entries and exits through UK airports and ports.

The SAR record is the same database the caseworker will use to assess your application. Obtaining it in advance lets you compare it against your own log, resolve any discrepancies and submit an application that matches it exactly. Checking your HMRC employment history can also confirm that you were in the UK and working during periods where the travel records are unclear.

Absence tracking checklist

Ensure you have completed this checklist before finalising your travel log:

• Chronological spreadsheet: a complete, date-ordered list of every departure and return, with flight numbers and airport codes.
• eGates verification: explicit confirmation of travel dates for trips where no stamp was placed in your passport.
• HMRC matching: cross-check travel dates against employment start and end dates so that there are no overlap anomalies.
• Home Office SAR: request, receive and audit your UKVI travel history record before you submit.
• Evidence folder: a single PDF containing boarding passes, tickets and booking receipts for every trip logged.