Indefinite Leave to Remain, usually shortened to ILR, is the UK's main form of permanent residence. Once you hold it, you can live and work in the UK without a time limit and without renewing a visa, and it is normally the step before applying for British citizenship.
What ILR actually gives you
ILR is often called settlement. It removes the conditions attached to most temporary visas: you no longer need sponsorship, you can change jobs freely, and you can usually study and access services without the restrictions a time-limited visa imposes.
It is not quite the same as citizenship. You do not get a British passport, you cannot vote in every election, and your status can lapse. In particular, ILR can be lost if you spend a long continuous period outside the UK, so it is best understood as permanent permission to stay rather than a guarantee that nothing can ever change.
The continuous-residence idea
Most routes to ILR ask you to show a period of lawful, unbroken residence in the UK, commonly five years, though some routes use shorter or longer periods. The core concept is continuous residence: you must have lived in the UK throughout the qualifying period without breaking it.
Breaks are measured mainly by time spent abroad. As a general rule, applicants are expected not to be outside the UK beyond a set number of days in any rolling twelve-month period across the qualifying years. The figure many people refer to is around 180 days, but the precise way it is counted, and the windows it applies to, can differ between routes and have changed over time, so treat that number as a rough guide rather than a fixed rule.
Other things can also break continuity, such as serious immigration breaches, certain gaps between visas, or time spent in prison. Because the day-counting rules are technical and easy to miscalculate, keep careful travel records.
- Track every trip in and out of the UK, with exact dates.
- Keep boarding passes, passport stamps and travel bookings.
- Be ready to explain longer absences, for example for work, family emergencies or illness.
Rules change and thresholds vary by route — confirm the current absence limits and how they are counted with a qualified adviser before you rely on any number.
The Life in the UK test and English
Most adults applying for ILR must meet two knowledge requirements. The first is the Life in the UK test, a multiple-choice exam about British history, traditions, institutions and everyday life. You book it at an official test centre, sit it on a computer, and you usually need to have passed it before you apply.
The second is an English language requirement. Depending on your route and nationality, you may meet it through an approved English test at the required level, or through a degree taught in English. Some applicants are exempt, for example certain nationals of majority English-speaking countries, people above or below particular ages, or those with a relevant long-term health condition.
The pass mark, fees, exempt categories and accepted qualifications are set by the government and are updated from time to time, so check what currently applies to your situation rather than assuming an older rule still holds.
Routes that lead to ILR
You generally cannot apply for ILR out of nowhere; you qualify through a recognised immigration route after holding the right visas for long enough. Common paths include:
- Work routes — for example the Skilled Worker route, typically leading to ILR after a qualifying period of continuous residence with valid sponsorship.
- Family routes — for example partners and spouses of British citizens or settled people, usually after a longer qualifying period.
- Long residence — for people who have lawfully lived in the UK for an extended continuous period.
- Global Talent and certain business or investor routes — which can sometimes lead to settlement on different timelines.
- Refugee and humanitarian routes — which have their own settlement rules.
Each route has its own qualifying period, conditions and evidence. Some let you count time across different visas; others reset the clock if you switch. Salary thresholds, sponsorship rules and even the standard qualifying periods are policy choices that the government adjusts, so two people on paper-similar routes may face different requirements depending on when they apply.
Other things that can affect eligibility
Beyond residence and tests, decision-makers look at your immigration history and character. Past overstaying, serious criminal convictions, or breaches of visa conditions can delay or prevent ILR. Dependants, such as a partner and children, often apply alongside or after the main applicant under linked rules.
Applying in practice
Applications are normally made online, followed by an appointment to provide biometrics, with supporting documents uploaded or presented. You will typically need your passports, proof of continuous residence, your Life in the UK pass, evidence for the English requirement, and route-specific documents such as payslips or relationship evidence.
There is a government fee, and faster decision options sometimes exist for an extra charge. Fees and processing times change regularly, so treat any amount you read as approximate and confirm the current figure before applying. Getting the application right the first time matters, because refusals cost time and money and can complicate future applications.
A sensible next step
This guide is general information, not legal advice for your situation. Immigration rules are detailed, they change often, and small differences in dates, absences or route can change the outcome. Before you apply, it is wise to speak with a qualified UK immigration solicitor or another regulated adviser who can review your full history and confirm the rules that currently apply to you.