A naturalisation application can be refused for spending too many days outside the UK, even where every other requirement is met. The limit is 450 days across the five-year qualifying period on the standard route, or 270 days across three years for the spouse or civil partner of a British citizen, with a further limit of 90 days in the final year on both routes. Home Office discretion above these limits is narrow, so a single miscounted trip can turn a straightforward application into a refused one. This post provides an overview of the absence requirements for a UK naturalisation application.
Key overviews
- On the standard five-year route, the limit is 450 days outside the UK across the qualifying period, and no more than 90 days in the final 12 months.
- On the three-year route for the spouse or civil partner of a British citizen, the limit is 270 days across the qualifying period, with the same 90-day limit in the final 12 months.
- Only whole days out of the UK count. The day of departure and the day of return are both treated as days in the UK.
- Absences over the limit are not an automatic refusal. The Home Office can exercise discretion, but only within the bands and conditions in its policy.
- The absence rules apply at the date of application. Once citizenship is granted, it is not lost through time spent abroad.
How many days can you spend outside the UK before applying for citizenship?
The number of days depends on which route the application is made under. The standard route is section 6(1) of the British Nationality Act 1981. It is for a person who is not the spouse or civil partner of a British citizen, and it has a five-year qualifying period. The spouse or civil partner route is section 6(2). It has a three-year qualifying period and a lower overall limit, but the same 90-day final-year limit as the standard route.
Under Schedule 1 to the British Nationality Act 1981, an applicant on either route meets the residence requirement where each of the following applies:
- the applicant was in the UK at the start of the qualifying period;
- total absences did not exceed 450 days on the standard route, or 270 days on the spouse route;
- absences in the 12 months ending with the date of application did not exceed 90 days;
- the applicant was free of any immigration time restriction throughout the final 12 months on the standard route, or at the date of application on the spouse route; and
- the applicant had not been in the UK in breach of immigration law during the qualifying period.
On the five-year route, the applicant must have held settled status for the whole of the final 12 months, usually indefinite leave to remain. The applicant must also meet a future intentions requirement to keep their main home in the UK.
In comparison, applicants married to a British national may apply for naturalisation immediately upon acquiring indefinite leave to remain, subject to meeting all of the requirements. Additionally, the future intention to settle in the UK requirement does not apply. Our citizenship by marriage guide covers the wider position for spouses of British citizens.
The other residence requirements for naturalisation include lawful immigration status across the qualifying period. The wider eligibility conditions, including good character and the Life in the UK Test, sit in the main naturalisation guide.
How is time spent outside the UK counted?
Only whole days spent outside the UK count towards the limits. The day the applicant leaves the UK and the day they return are both treated as days in the UK. A person who leaves on 22 September and comes back on 23 September has not been absent at all.
The applicant works out their absences from their passport stamps and travel history, and lists every trip on the naturalisation application Form AN. The Home Office checks that list against its own records of entry and exit. Where the two do not match, or a trip is missing, the caseworker pauses the application to ask for an explanation. That extends the time the application takes to decide. Reconciling every trip against passport stamps and entry and exit records before filing avoids one of the more common British citizenship application mistakes.
An applicant’s passports do not always cover the whole qualifying period, for example where an earlier passport was not kept or where the passport does not have UK entry or exit stamps. In these cases, applicants should produce sufficient evidence to demonstrate that they have been continuously residing in the UK, such as evidence relating to employment and financial ties to the UK.
What is the 90-day rule for the final 12 months?
The 90-day rule is a separate limit on absences in the 12 months ending on the date of application. It applies to both routes, on top of the overall 450-day or 270-day limit.
An applicant can meet the overall limit and still go over the 90-day limit, or the reverse. Both limits have to be satisfied. An applicant with 80 days abroad in the last year but 550 days across five years does not meet the requirement. Neither does an applicant who is within 450 days overall but spent 150 days abroad in the final year.
The date of application sets the start of both the 12-month window and the qualifying period. So choosing when to apply is often what brings a borderline travel history within the limits.
Do you have to be in the UK on a specific date?
Yes. The applicant must have been physically in the UK on the first day of the qualifying period. That day is the date of application, minus five years for the standard route or three years for the spouse route, plus one day.
The Home Office has discretion to waive this, but only in special or exceptional circumstances. An example is where illness or a travel restriction kept the applicant out of the UK on that date. Where an applicant was simply abroad on that day, the practical answer is usually to apply on a later date. The applicant then needs to have been in the UK exactly five or three years earlier.
What happens if your absences go over the limit?
Going over either limit is not an automatic refusal. The exercise of discretion is a Home Office caseworker decision, and this guide does not advise on the individual outcome. Where discretion applies, the position is set out in the Home Office’s own naturalisation by discretion policy, quoted here rather than interpreted:
“Where the applicant exceeds the permitted absence by 30 days or less you must exercise discretion unless there are other grounds on which the application falls to be refused.”
Beyond that, the guidance narrows discretion to specific circumstances, among them Crown service postings, a career such as a merchant seaman that unavoidably involves frequent travel, and “exceptionally compelling reasons of an occupational or compassionate nature”. Past 900 days on the standard route, or 540 days on the spouse route, the guidance states it is “highly unlikely that discretion would be appropriate”.
The final-year 90-day limit is treated separately. Under 100 days, the guidance again directs caseworkers to “exercise discretion”. Beyond that, discretion is “only appropriate where the applicant demonstrates strong links through the presence of family, employment and their home in the UK”, narrowing further as the excess grows.
A small number of applicants are affected by technical absences. A person in this position is treated as absent from the UK even though they were physically present. Examples include an exempt diplomat or a member of a visiting force. The guidance allows this discretion “under paragraphs 2(b) and 4 of schedule 1 to the British Nationality Act 1981”.
How are ILR absences different from naturalisation absences?
Indefinite leave to remain caps absences at 180 days in any rolling 12 months across the continuous residence period, usually five years. Naturalisation instead uses total-day limits, 450 or 270 days, across the fixed three or five years before the date of application. A separate 90-day final-year limit also applies. An applicant who stayed under 180 days in every rolling year for ILR can still be over the 450-day naturalisation total. An applicant who cleared ILR comfortably can still fall foul of the 90-day rule in the year before applying for citizenship.
Many applicants apply for citizenship straight after ILR, which makes the two calculations run close together, but they do not automatically align. The naturalisation qualifying period usually overlaps with the ILR period, but it runs from the date of the citizenship application. It does not run from the date ILR was granted. Each application needs its own absence calculation, run separately.
Can you lose British citizenship through time spent abroad after naturalising?
No. Once British citizenship is granted, it is not conditional on continued residence, and it is not lost through time spent outside the UK, however long. This is different from indefinite leave to remain, which can lapse after an extended period of continuous absence.
British citizenship can only end through renunciation or deprivation. Renunciation, under section 12 of the British Nationality Act 1981, is applied for by the person themselves. Deprivation is a decision by the Home Secretary, made on specific grounds. These include fraud in the original application or conduct not conducive to the public good. Neither route is triggered by living abroad. Section 40 of the British Nationality Act 1981 sets out the deprivation power in full. A British citizen who moves abroad after naturalising keeps their citizenship and their right to a British passport for as long as they hold it.
Frequently asked questions
Does a flight that lands after midnight count as an extra day of absence?
No. Only whole days outside the UK count. The day of return is treated as a day in the UK regardless of the arrival time.
Do absences from before I was granted settled status count?
Yes if the qualifying periods overlap. The qualifying period for naturalisation is the five or three years before the date of application.
Can I choose when to apply to bring my absences within the limits?
Yes. The applicant sets the date of application, which sets both the qualifying period and the final 12-month window. Waiting until an old absence falls outside the relevant window is a common and legitimate way to meet the requirement.
If the Home Office exercises discretion on my absences, is my application then granted?
Not automatically. Discretion on absences only removes that obstacle. Good character, knowledge of English, the Life in the UK Test and, on the standard route, the future intentions requirement must all still be met.
My absences were all for work. Does that help?
Only certain work absences are listed as reasons to exercise discretion, such as Crown service or a career that unavoidably requires frequent travel abroad. Ordinary business travel that takes an applicant over the limit is not guaranteed to be excused.
I was outside the UK on the exact start date of my qualifying period. Is my application refused?
Not necessarily, but discretion to waive that requirement is only used in special circumstances. It is usually better to apply on a later date. The applicant then needs to have been in the UK exactly five or three years before that new date.
How Whytecroft Ford can help
Whytecroft Ford’s IAA-regulated immigration team prepares naturalisation applications on a regular basis, including for applicants who have spent long periods working or living abroad. To discuss a naturalisation application with our team, call 0208 757 5751 or use the contact form.
Disclaimer
The material in this article is provided for guidance and general information only and is not intended to constitute legal or other professional advice upon which you should rely. In particular, the information should not be used as a substitute for a full and proper consultation with a suitably qualified professional. UK Immigration Rules are subject to change. Please do contact the Whytecroft Ford team if you require further advice.
