Indefinite leave to remain and British citizenship

Applying for indefinite leave to remain and British citizenship is the last step in the immigration journey.

Where we advise on immigration applications, we routinely advise on future eligibility for indefinite leave to remain, including on maintaining continuous residence.  When the time comes to apply for indefinite leave to remain, normally but not always after five years in a qualifying category, we are able to assist you in meeting the eligibility requirements.  Where applicable we can advise on accelerated indefinite leave to remain applications and long residence applications.

British nationality law has been subject to significant developments in recent years. We can use our longstanding experience and knowledge to assess your eligibility and assist you with applying for British citizenship.

Whether you are looking to naturalise as a British citizen having obtained indefinite leave to remain, or you are looking to register as a British citizen on the basis of your parents’ nationality or status in the UK, we can provide you with detailed advice and guidance.

We also have experience of handling complex nationality cases which require an understanding of the historic evolution of Britain’s nationality law.

Generally speaking you will be required to have spent six years in the UK to become eligible to apply for naturalisation, however, there are exceptions.

Additional requirements exist for EU citizens who have permanent residence or settled status from the EU Settlement Scheme. There are also strict continuous residence, English language and character requirements to meet in order to qualify and our experienced immigration team will be able to guide you every step of the way to ensure a successful outcome for your application.

Recent examples of work

  • Obtaining indefinite leave to remain for a victim of domestic violence.
  • Advising individuals on the absence requirements for their indefinite leave to remain application following  time spent outside the UK due to coronavirus.
  • Successfully assisting a mother to register her child as a British citizen where she had received a refusal due to discrepancies with her documents and evidence of her immigration status in the UK.
  • Advising and assisting an EEA national on a British citizenship application for his daughter who had been born in the UK after he obtained permanent residence.


For more information about our immigration services please contact Nicolas Rollason at or a member of the team.

Always prompt and factual’" Kingsley Napley LLP provides "an excellent level of service"

Legal 500 UK

"Kingsley Napley leads the immigration outfits in the UK"

Who's Who Corporate Immigration

​"Interviewees agree that Kingsley Napley is home to a superb team of immigration lawyers"

Chambers UK, A Client's Guide to the UK Legal Profession

Obtaining British Citizenship and Staying Permanently Insights

View all


The Home Office has shown efficiency and innovation in dealing with EU nationals-it now needs to show its humanity

Frequently Asked Questions on the Hong Kong British National (Overseas) visa

The EU-UK Trade and Cooperation Agreement – does it make any difference to UK and EU immigration?

Students starting their careers in the UK should consider a Tier 5 Government Authorised Exchange (GAE) visa

Brexit – take back control over your immigration status

Will Windrush help reset attitudes to immigration?

UK Immigration Authorities complete a ‘180’ on absences from the UK

#Brexit: Latest proposals for EU citizens living in the UK

Will changes to the immigration rules still present a challenge for spouses to live together?

In Sickness and in Health: Appendix FM five years on

Brexit – Trust is hard earned and easily lost for EU citizens in the UK

Will EU nationals have a human right to continue to reside in the UK after Brexit?

Immigration update - How will triggering Article 50 impact employers of EU nationals?

What is behind the so called “tit-for-tat” EU and US visa spat?

Brexit: home & away

Brexit - what French nationals in the UK need to know

Theresa May signals an end to free movement and leaves EU citizens here and British citizens abroad in limbo

Local authorities roll out new streamlined services for British citizenship and Permanent Residence applications

Immigration update - Further expansion of UK Registered Traveller Service

Roll out of online application process for EEA nationals

The challenges in managing international assignments for UK based employees – where to next?

Coming soon: The Immigration Bill 2015

Government announces immigration fees increases will be effective from 18 March 2016

The government announces immigration fee changes effective 6 April 2016

Changes introduced to the British nationality regime

Immigration Act 2014: Marriage and Civil Partnership

Close Load more

Skip to content Home About Us Insights Services Contact Accessibility