How to Fill Out the ILR Application Form (SET(M), SET(O)) ​

Securing Indefinite Leave to Remain (ILR) marks a major achievement for individuals aiming to make the UK their permanent home. It grants the freedom to live, work, and study in the country without immigration limitations and usually serves as the final step before becoming eligible for British citizenship.

Request a Call Back from our Legal Team

That said, the process isn’t easy. The paperwork can be confusing, the requirements are strict, and missing a single document or ticking the wrong box can cause serious delays or even a refusal.

Two of the most common ILR application forms are SET(M) and SET(O). Understanding which form to choose and how to complete it accurately can make a crucial difference.

This article guides you through both forms, explains the key differences, and provides straightforward tips to help you complete your ILR application correctly the first time.

Get Expert Advice from our Legal Team​

Call us on 020 7269 9590 or Fill in our form

SET(M) vs. SET(O): Which Form Is Right for You?

The first and most critical step is to identify the correct application form for your circumstances. The main distinction lies in the basis of your eligibility for settlement.

Form SET(M): For Family Life

The SET(M) form is for individuals applying for ILR based on their family ties to a person already settled in the UK or a British citizen. You should use this form if you are a:

  • Partner of a settled person, which includes a spouse, civil partner, or an unmarried partner in a long-term relationship. Applicants typically apply after completing a qualifying period on a partner visa, usually under the 3 or 5-year route.
  • Parent of a child who is a British citizen or has settled status in the UK. This is typically for those on a 5-year route to settlement who have parental responsibility for the child.

Form SET(O): For Work, Business, and Other Routes

The “(O)” in SET(O) stands for “Other,” and this form covers a wide array of immigration categories not related to family life. It is the designated form for applicants who have been in the UK on routes related to work, business, investment, ancestry, or long-term residency.

You should use the SET(O) form if you are applying based on categories such as:

  • Skilled Worker, or the previous Tier 2 (General) visa
  • Global Talent, or the previous Tier 1 (Exceptional Talent) visa
  • Tier 1 (Entrepreneur) or Tier 1 (Investor) routes, including accelerated schemes
  • Innovator Founder
  • UK Ancestry
  • Long Residence (having lived lawfully in the UK for 10 years)
  • Representative of an Overseas Business

You should know about: Do You Need a Lawyer for ILR? Pros and Cons

Core Eligibility Requirements for All ILR Applicants

While the specific evidence differs between SET(M) and SET(O), several core requirements apply to almost all ILR applicants.

  • Ongoing Residence: The majority of ILR routes demand that you have resided in the UK for a predetermined amount of time, usually five years. Some routes, like the Tier 1 Investor or Entrepreneur, offer accelerated settlement after two or three years if certain conditions are met. During this qualifying period, your total absences from the UK must not exceed 180 days within any 12-month span.
  • Knowledge of Language and Life in the UK (KoLL): Unless you are under 18, over 64, or have a medical exemption, you must prove your knowledge of life and language in the UK. This involves two parts:
    1. Passing the Life in the UK Test.
    2. Showing your English language ability by presenting an approved qualification at level B1 or above, holding a degree that was delivered in English, or being a national of a country where English is the main language.
  • Good Character: Applicants must declare all criminal convictions and civil judgments, including those that are considered “spent”. The Home Office evaluates your character based on this information. Honesty is paramount, as failing to disclose information is a criminal offence and can lead to an automatic refusal.
  • Application Timing: ILR applications are time-sensitive. You have to apply at least 28 days before the end of your qualifying period, but no earlier than before your current leave to remain expires. Applying too early is a common reason for refusal, and you will not receive a refund of the application fee.

Step-by-Step: How to Fill Out the ILR Application Form

1. Gather all necessary documents

Before starting your application, collect everything you’ll need, including:

  • Current passport and previous UK visas
  • Biometric Residence Permit (BRP), if you have one
  • Evidence of income and financial stability, such as recent payslips or bank statements
  • Life in the UK Test pass certificate
  • English language qualification, if required
  • Relationship documents (for SET(M)), such as marriage certificates or cohabitation evidence

Preparing all your documents in advance will streamline the process and reduce the chance of mistakes.

2. Complete the form online

Both SET(M) and SET(O) forms are completed online via the UK Government website.

You’ll need to:

  • Create a UKVI account or sign in
  • Choose the correct form
  • Fill in your personal details, immigration history, and any dependants
  • Upload supporting documents where required
  • Pay the application fee (currently £2,885 as of 2025) and the biometric fee

Take your time; rushing through the form increases the chance of mistakes.

3. Book and attend your biometric appointment

After submitting your application and completing the payment, you’ll need to schedule an appointment at a UK Visa and Citizenship Application Services (UKVCAS) centre.

You’ll need to:

  • Provide fingerprints and a digital photo
  • Submit your original documents if required
  • Confirm your uploaded evidence

4. Wait for a decision

ILR applications can take several weeks to process, depending on your category and whether you’ve opted for the priority or super-priority service. During this period, you should not travel outside the UK until a decision has been made, as leaving the country could void your application.

Get to know: Is There a Same-Day ILR Processing Service Available in 2025?

Common Pitfalls and How to Avoid Them

The Home Office is meticulous, and even small errors can jeopardise your application. Be sure to avoid these common mistakes:

  • Incorrect Timing: Applying more than 28 days before your qualifying period ends or after your current visa has expired.
  • Inaccurate Information: Failing to be completely truthful, especially in the personal history section regarding criminal convictions.
  • Missing Documents: Failing to include all necessary supporting documents in their original form, or clear digital copies for online applications, can cause issues. If any document is in a language other than English or Welsh, you must also provide a certified translation.
  • Calculation Errors: Miscalculating your continuous residence period or under-reporting your absences from the UK.
  • Incorrect Fee: Failing to pay the correct fee for yourself and any dependants.

Speak to Gulbenkian Andonian Solicitors About Your ILR Application

Applying for Indefinite Leave to Remain is one of the most important immigration steps you’ll ever take, and it’s worth getting it right the first time. At Gulbenkian Andonian Solicitors, our experienced immigration lawyers have been helping clients secure ILR for over 40 years, handling even the most complex cases with precision and care.

Whether you’re unsure which form applies to you (SET(M) or SET(O)), need help gathering supporting evidence, or want your application checked before submission, our team can guide you through every stage of the process.

Contact us today to get started.

Get Expert Advice from our Legal Team​

Call us on 020 7269 9590 or Fill in our form

FAQs

SET(M) is used by partners or parents of British citizens or settled persons applying for ILR through the family route. SET(O) is for other eligible categories, such as Skilled Workers, Innovators, Global Talent, or those with long residence (10 years of lawful stay).

You can usually apply for ILR up to 28 days before completing your qualifying residence period in the UK, typically 5 years under most visa routes or 10 years under long residence.

Using the incorrect form (for example, SET(O) instead of SET(M)) can result in your application being rejected or invalidated. Before applying, it’s crucial to make sure you fall into the appropriate category. If you’re unsure, speak to an immigration solicitor before submission.

Yes. In most cases, applicants are required to pass both the Life in the UK Test and an approved English language exam at B1 level or above. However, exemptions may apply depending on your age, medical condition, or visa type.

No. If you leave the UK while your ILR application is still being processed, it will be treated as withdrawn automatically. You should stay in the country until you receive a final decision.

Immigration client reviews

Read reviews from clients who have instructed our immigration lawyers on UK immigration, visa, human rights and appeal matters.

Gulbenkian Andonian Solicitors
Privacy Overview

This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.