British Citizenship Through Marriage — Naturalisation for Spouses and Civil Partners
Marriage to a British citizen does not give automatic citizenship, but it can change the residence period and timing. We advise spouses and civil partners on the safest route to apply.
The Marriage Route
If you are married to, or in a civil partnership with, a British citizen, you may be able to apply based on three years’ residence rather than five. You must still hold ILR or settled status and meet the other naturalisation requirements.
This route is often misunderstood. The date you obtained ILR, your absence history and whether the relationship is continuing all matter.
Current fee
The adult naturalisation fee is £1,709 from 8 April 2026.
What We Review
| Requirement | What We Check |
|---|---|
| Status | ILR or settled status evidence. |
| Marriage/civil partnership | Relationship evidence and British citizen spouse/civil partner evidence. |
| Residence | Three-year qualifying period and absences. |
| Good character | Criminal, immigration and financial conduct risks. |
Frequently Asked Questions
Do I become British automatically by marriage?
No. You must apply for naturalisation and meet the legal requirements.
What is the qualifying period?
Spouses and civil partners of British citizens can usually rely on a three-year residence period, but they must still hold ILR or settled status.
Do I need to wait 12 months after ILR?
The 12-month holding period does not usually apply in the same way to spouses and civil partners of British citizens.
What are the absence limits?
You normally need no more than 270 days outside the UK in the three-year period and no more than 90 days in the final 12 months.
Do I need Life in the UK and English?
Yes, unless an exemption applies.
What if my relationship has ended?
The spouse/civil partner route may no longer apply. You should get advice before submitting.
Can same-sex spouses and civil partners apply?
Yes, the route applies to spouses and civil partners who meet the requirements.
Can NA Law review my timing?
Yes. We check dates, absences, ILR or settled status, evidence and good character issues before you apply.
Get Clear Nationality Advice
Nationality applications are too important to submit with avoidable mistakes. We can assess your route, timing, evidence and risks before you apply.