Most refusals on settlement are not dramatic. They are arithmetic. Someone counted absences by calendar year instead of by rolling window, or forgot the half-day they spent transiting through Doha, or assumed the clock restarted when their visa was renewed. By the time the Home Office sends its decision, the trip is years old and impossible to undo.
If you are approaching Indefinite Leave to Remain on a Skilled Worker, Global Talent, family or Long Residence route, the way you count days outside the UK is one of the few parts of the application you can control completely — provided you start early and count correctly.
The rule, stated plainly
For most work-based routes leading to ILR, including Skilled Worker, the applicant must not have been absent from the UK for more than 180 days in any rolling 12-month period during the qualifying years (usually five). The Long Residence route (ten years of continuous lawful residence) uses a different framework — broadly, no single absence over 184 days and no more than 548 days in total across the ten years — but the discipline of tracking is the same.
Two words in that sentence do most of the damage: rolling and any.
Rolling means the 12-month window is not fixed to a calendar year or to your visa anniversary. It slides. On any given day of your qualifying period, the Home Office can look backwards 365 days and add up your absences. If the total exceeds 180 on any such day, the count fails — even if your calendar-year totals look healthy.
A worked example. You spend 90 days abroad from October to December 2023, and another 100 days from August to November 2024. Each calendar year looks fine. But on 15 November 2024, looking back 12 months, the Home Office sees roughly 190 days of absence. That single day is enough.
What actually counts as an absence
This is where careful applicants slip. The Home Office generally counts whole days outside the UK, and the day you leave and the day you return are usually treated in the applicant's favour — but guidance has shifted over the years, and the safest assumption is to count any full day you were not physically in the UK.
Things that do count as absences:
- Holidays, including weekend trips to Europe.
- Business travel, even if your UK employer required it.
- Time spent working remotely from another country.
- Visits to family overseas, including emergencies and bereavements.
- Transit stops where you cleared immigration into another country.
Things that are sometimes treated differently, and which you should document carefully rather than assume:
- Absences for serious illness of the applicant or a close family member.
- Absences caused by a natural disaster, conflict, or other event genuinely outside your control.
- Travel undertaken as a requirement of your sponsored employment (this can in some cases be excluded from the 180-day count on Skilled Worker, but only with employer evidence).
"Sometimes treated differently" is not the same as "doesn't count". If you intend to rely on an exception, keep contemporaneous evidence — letters, medical records, employer confirmations — at the time, not three years later when you are assembling your application.
When to start counting
The qualifying period for ILR generally runs from the date you were first granted leave under the qualifying route. For Skilled Worker applicants, that is usually the start date of your first Skilled Worker (or predecessor Tier 2) grant. For Long Residence, it runs from the start of your ten years of continuous lawful residence in the UK.
A few principles worth internalising early:
- Start tracking on day one. Not in year four. The earliest absences are the ones people forget, and they are also the ones that fall inside the rolling windows of your later years.
- Track by date, not by trip. A single trip can straddle two rolling windows. Record departure and return dates separately for each journey.
- Use passport stamps and boarding passes as your primary record. Memory is unreliable; airline emails get deleted; passports get renewed. Photograph stamps when you receive them.
- Reconcile annually. Once a year, sit down with your records and calculate the rolling 12-month total at multiple test dates — not just at year-end.
- Do not rely on the Home Office to flag problems. They will not warn you mid-route. You will discover the issue when you apply.
The common mistakes
A short catalogue of the errors we see most often:
- Counting by calendar year. The 180-day limit is not annual. It is rolling. Two well-behaved calendar years can still contain a window that breaches.
- Forgetting the day of departure or return. Half-counted days add up across five years.
- Assuming a visa renewal resets the clock. Switching from one Skilled Worker grant to another, or extending in-country, does not start a new qualifying period — your absences from the earlier grant still count.
- Confusing ILR rules with British citizenship rules. Citizenship has its own absence thresholds (generally 450 days over five years and 90 days in the final year), which are different from ILR. Passing ILR does not automatically mean you pass citizenship.
- Ignoring partial days when working remotely abroad. If you spent the day in Lisbon, you were not in the UK, regardless of which laptop you opened.
- Trusting a spreadsheet built in haste. Manual counts are where arithmetic errors live. Cross-check.
Building a defensible record
If your application is borderline, the difference between approval and refusal is often the quality of your evidence. Keep, in one place: a chronological list of every trip with departure and return dates, the country visited, the reason, and a supporting document (boarding pass, stamp photo, hotel booking). For absences you believe should be treated as exceptional, keep the underlying evidence from the time of the event.
When the application comes, you want to be in a position to hand over a clean schedule rather than reconstruct one. Reconstruction is where mistakes get made, and where credibility quietly erodes.
FAQ
Q: I changed employers mid-route and got a new Certificate of Sponsorship. Does my absence count reset? A: No. The qualifying period for ILR runs from your first grant of leave on the qualifying route, not from each new CoS or visa grant. Absences accumulated under the earlier sponsor still count toward your rolling windows.
Q: My partner is on a dependant visa. Are their absences counted the same way? A: The 180-day rolling rule generally applies to the dependant as well when they apply for ILR in line with the main applicant. Each person needs their own absence record; do not assume your travel history is identical.
Q: I was abroad for four months caring for a terminally ill parent. Will that be excluded? A: It may be treated as an absence for a compelling and compassionate reason, but it is not automatic. You will need contemporaneous medical evidence, proof of the family relationship, and a clear explanation in the application — and even then, the decision is at the caseworker's discretion.
If you would rather not maintain the spreadsheet yourself, ILR Timer tracks your absences against the rolling 12-month window and flags problems before they become refusals.