If you wish to live in the UK long term or settle permanently, you must first obtain Indefinite Leave to Remain (ILR), after which you may apply for British Citizenship. Both stages require meeting specific conditions, including minimum residence periods, tests, and good character requirements. It is important to understand the differences between the two.

Indefinite Leave to Remain (ILR)

ILR grants the right to live and work in the UK without time restrictions. Most visa holders can apply after five years of lawful residence (some immigration routes require ten years), provided they have no criminal record, have complied with immigration rules, and have passed the Life in the UK Test and met the English language requirement. To maintain ILR, you must not spend more than two consecutive years outside the UK. Many visa categories, such as the Skilled Worker route, can lead naturally to ILR.

As of 2025, the UK government is actively planning to increase the continuous residence requirement for ILR from five to ten years. If this change comes into effect, applicants will likely need to extend their existing visa—either in the same category or another eligible route—to meet the new ten-year requirement before applying for ILR.

British Citizenship

In most cases, you must hold ILR for at least 12 months before applying for citizenship. If you are married to a British citizen, this 12-month waiting period is waived, allowing you to apply immediately after obtaining ILR.

To be eligible, you must have spent no more than 450 days outside the UK in the five years before your application, and no more than 90 days in the final 12 months. You must also meet additional conditions such as passing the Life in the UK Test, meeting the English language requirement, and having no serious criminal or immigration offences.

Both ILR and citizenship applications involve complex checks on residence history, eligibility, test preparation, and documentation. Working with an adviser authorised by the Immigration Advice Authority (IAA) under the UK Home Office can improve your chances of success and ensure your application is handled accurately and efficiently.