Most ILR holders
GOV.UK says the usual route is 5 years in the UK plus 12 months with ILR, settled status or indefinite leave to enter before naturalisation.
Last reviewed:
Naturalisation guide
ILR is often the step before naturalisation, but it is not the whole test. Use this page to understand the usual waiting rule, the British-spouse exception and the checks that still matter before you apply.
Readiness first
The standard GOV.UK route says most adults can apply for British citizenship after living in the UK for 5 years and holding ILR, settled status or indefinite leave to enter for 12 months. GOV.UK also says you do not need to wait 12 months if you are married to a British citizen.
That timing point is only the start. A naturalisation application still has its own residence, absences, good-character, language and Life in the UK checks. This page explains the usual framework and links the official sources, but it does not tell you that you qualify.
Typical timing
GOV.UK says the usual route is 5 years in the UK plus 12 months with ILR, settled status or indefinite leave to enter before naturalisation.
GOV.UK says you do not need to wait 12 months if you are married to a British citizen, but you still need to meet the rest of the naturalisation requirements.
A short article cannot resolve route history, excess absences, suitability concerns or whether discretion might be available in a specific case.
Official starting point: apply for citizenship if you have ILR or settled status. If you are using the spouse route, compare the public page with the current Form AN guidance.
Residence rules
Be physically in the UK on the relevant start date of the qualifying period: usually exactly 5 years before the Home Office receives the application, or 3 years for the British-spouse route.
Check total absences across the qualifying period and the final 12 months. GOV.UK's general guide points to 450 days over 5 years for the standard route, 270 days over 3 years for the British-spouse route, and 90 days in the final 12 months for both.
Use the actual application date, not the day of a later appointment. GOV.UK says an online citizenship application is received on the day it is submitted.
If applying from outside the UK, read Form AN guidance carefully. Overseas applications are possible, but the Home Office says an application may be refused where applying abroad appears intended to avoid the immigration time-restriction requirement.
GOV.UK's main citizenship page gives the public-facing residence thresholds. The more detailed naturalisation caseworker guidanceexplains how discretion may be considered in some absence or presence scenarios. Where discretion is mentioned, treat that as uncertain rather than assumed.
Evidence and suitability
Form AN guidance says you need sufficient speaking and listening knowledge of English, Welsh or Scottish Gaelic, unless an exemption applies.
GOV.UK says adult applicants normally need to have passed the Life in the UK Test. A pass used for settlement does not normally need to be taken again; keep the reference details for the citizenship application.
GOV.UK and the nationality policy guidance say good character remains a separate requirement. ILR does not automatically remove criminality, deception, tax or immigration-history concerns.
Travel dates, passports, Home Office grants and address history still matter because the citizenship residence test is separate from the earlier ILR decision.
If you need background reading before naturalisation, see our Life in the UK guide, English-requirement guide and ILR application overview. Those pages help with preparation but are not a substitute for nationality guidance.
Before you submit
Questions people ask
Usually yes. GOV.UK says most adults applying after ILR, settled status or indefinite leave to enter must have held that status for 12 months. GOV.UK also says you do not need to wait 12 months if you are married to a British citizen.
No for an online naturalisation application. GOV.UK says that if you apply online, the Home Office receives the application on the same day. That date matters for the 5-year or 3-year presence check.
No. ILR helps with settlement status, but a citizenship application still has its own residence and good-character requirements. Where discretion may exist, the official guidance should be checked carefully because discretion is not guaranteed.
Usually yes for an adult naturalisation application, unless an exemption applies. A Life in the UK pass used for settlement does not normally need to be taken again, but you still need to provide the requested reference and check that your language evidence meets the current citizenship rules.
Official sources reviewed on 18 August 2026:GOV.UK citizenship after ILR page,Form AN guidanceandnationality caseworker guidance.