The SET(O) form is the official Home Office application for individuals seeking indefinite leave to remain (ILR) in the UK. Eligible categories include Tier 1 migrants (entrepreneurs, investors, and exceptional talent), representatives of overseas businesses, retired persons of independent means, and applicants with UK ancestry. Each category carries specific eligibility requirements and qualifying residence periods that must be satisfied before submitting.
Since July 6, 2018, applicants must use this version of the form to meet the validity criteria under paragraph 34 of the Immigration Rules. Outdated versions are rejected automatically. Before filling out the form, check the official Home Office website to confirm you have the current edition and download the accompanying guidance notes.
Gather the following documents before you start filling out the form. Having everything ready reduces the risk of submitting an incomplete application:
The SET(O) form runs to 78 pages and takes an average of 19 minutes to complete. Follow these steps to avoid the most common errors:
How long does the application process take?
Standard processing takes up to six months for most straightforward applications. A priority service is available for faster decisions.
Can I stay in the UK while my application is under review?
Yes. If you apply before your current leave expires, Section 3C leave allows you to remain in the UK while the Home Office considers your case.
What happens if my application is refused?
The refusal letter will set out whether you have a right of appeal or a right to request an administrative review. Read it carefully and act within the stated timeframe.
Do I need to send original documents or certified copies?
The Home Office generally requires original documents. Certified copies may be accepted in limited circumstances. Check the current guidance for your specific category before sending copies.
If you are applying for initial UK entry clearance rather than ILR, you will need the UK visa application form instead. After receiving ILR, many applicants go on to apply for British citizenship using the UK passport application form.
Comprehensive guidance notes and photograph specifications are provided alongside the SET(O) form to help you complete every section accurately. It is essential to read both documents in full before you begin filling out the application.
| Question | Answer |
|---|---|
| Form Name | Application Form Leave Remain |
| Form Length | 78 pages |
| Fillable? | No |
| Fillable fields | 0 |
| Avg. time to fill out | 19 min 30 sec |
| Other names | ilr application form 2021 pdf, indefinite leave to remain application form 2021, set o guidance 2021, how to application form leave remain |