How to Get a National Insurance Number in the UK

A complete guide for newcomers on how to apply for a National Insurance number in the UK. Understand the process, from who needs one to what documents you need.

FastSkillsAcademy TeamOctober 5, 20266 min read

''' Moving to a new country involves a lot of paperwork, and if you're planning to work in the UK, one of the first things you'll need is a National Insurance (NI) number. This unique number is essential for the UK's tax and benefits system. This guide will walk you through how to get a National Insurance number, making the process as simple as possible. We'll cover who needs one, how to apply online, what to expect during the identity check, and what you can do while you wait for your number to arrive.

Who Needs a National Insurance Number?

Anyone who wants to work in the United Kingdom needs a National Insurance number. This includes full-time employees, part-time workers, and self-employed individuals. You also need an NI number if you intend to claim certain state benefits, such as Universal Credit or a state pension.

Your NI number is your personal account number for the UK's social security system. It's used by HM Revenue & Customs (HMRC), the UK's tax authority, and the Department for Work and Pensions (DWP) to track your National Insurance contributions and taxes. These contributions determine your eligibility for certain state benefits and the state pension.

It's important to understand that you do not need an NI number to look for work, and you can even start working before you receive it. However, you must have the right to work in the UK, and you should apply for an NI number as soon as you can.

## How to Get a National Insurance Number: The Application Process

The process for applying for a National Insurance number has become much more streamlined in recent years. For most newcomers, the application is done entirely online through the official GOV.UK website. It is crucial to only use the official government website for your application, as other sites may charge you unnecessary fees.

For Biometric Residence Permit (BRP) and eVisa Holders

Many newcomers who have applied for their visa from outside the UK will have a Biometric Residence Permit (BRP). Your BRP is a card that holds your personal and biometric information. In some cases, your National Insurance number may be printed on the back of your BRP. If it is, you do not need to apply for one separately. You can start using it straight away.

For those with a newer UK visa, you might have an eVisa instead of a physical BRP. An eVisa is a digital record of your immigration status. You can view your eVisa information online. Similar to the BRP, if your NI number is included with your eVisa details, you do not need to make a separate application.

If your BRP or eVisa does not have an NI number, you will need to apply for one online.

The GOV.UK Online Application

The official GOV.UK website is the only place you should apply for your National Insurance number. The service is free. Be cautious of other websites that offer to help for a fee.

Here is a step-by-step guide to the online application:

  1. Visit the GOV.UK website: Go to the "Apply for a National Insurance number" page on GOV.UK.
  2. Start your application: You will be asked a series of questions to confirm you are eligible to apply online. This will include questions about why you need an NI number (e.g., you are starting work) and your immigration status.
  3. Provide your personal details: You will need to enter your full name, date of birth, nationality, and contact details. Make sure the information you provide matches your official documents, such as your passport or BRP.
  4. Enter your address: You must provide a UK address where you can receive mail. Your NI number will be sent to this address.
  5. Upload your documents: You will be required to upload photos of your identity documents to prove your right to work in the UK. This usually includes your passport and your BRP or eVisa.

The Identity Check

As part of the online application, you will need to prove your identity. The GOV.UK website will guide you through this process. You will be asked to take a photograph of yourself holding your passport or another form of identification. The website provides clear instructions on how to take an acceptable photo.

In some cases, you may be asked to attend an in-person appointment at a Jobcentre Plus office to verify your identity. However, this is less common now that the process is mostly digital. If you are required to attend an appointment, you will be notified and given instructions on what to bring.

It is important to provide clear and accurate information. Any discrepancies could delay your application. Remember that government rules and processes can change, so always refer to the official GOV.UK website for the most current information.

After You Apply: Timelines and What to Expect

After you submit your online application and complete the identity check, you will receive a confirmation email with a reference number. Keep this number safe, as you may need it if you have to contact the DWP about your application.

It can take several weeks to receive your National Insurance number. The current processing times are usually stated on the GOV.UK website. While you wait, you can still work as long as you have the legal right to do so in the UK.

Your NI number will be sent to you by post. It will be on a letter from HMRC. Keep this letter in a safe place. Your NI number never expires, and it will be the same for your entire life in the UK.

Working Before Your NI Number Arrives

It is a common concern for newcomers, but you can start work before you have your National Insurance number. You just need to prove to your employer that you have the right to work in the UK. You should also let your employer know that you have applied for an NI number and will provide it to them as soon as you receive it.

Your employer will use a temporary number for you on their payroll system. During this time, you may be taxed at a higher rate, known as an emergency tax code. Once you provide your NI number, your employer can correct your tax code, and you should receive a refund for any overpaid tax in a future payslip.

For those looking to prepare for professional life in the UK, FastSkillsAcademy offers a range of courses that can help you get ahead. If you're also on the path to settlement, you might find our Life in the UK Test practice materials very useful.

Checklist for Getting Your National Insurance Number

  • Check your BRP or eVisa: Your NI number might already be printed on your BRP or included with your eVisa details.
  • Confirm your right to work: You must have the legal right to work in the UK to apply.
  • Gather your documents: Have your passport, BRP or eVisa, and proof of a UK address ready.
  • Apply online via GOV.UK: Use only the official government website to avoid fees.
  • Complete the identity check: Follow the instructions to upload your photo and documents.
  • Note your application reference number: Keep it safe in case you need to follow up.
  • Inform your employer: Let them know you have applied and will give them the number when it arrives.

Applying for a National Insurance number is a straightforward but essential step for anyone starting their working life in the UK. By following the official process, you can ensure you are set up correctly for tax and social security contributions. For more guidance on settling in the UK, explore our helpful answers section. '''

National InsuranceUK VisaWorking in the UKNewcomers

Frequently asked questions

How long does it take to get a National Insurance number?

After you apply online, it can take several weeks to receive your National Insurance number by post. You can check the latest processing times on the GOV.UK website.

Can I start work in the UK without a National Insurance number?

Yes, you can start work as long as you have the right to work in the UK. You should inform your employer that you have applied for a National Insurance number and provide it to them as soon as you receive it.

Is it free to apply for a National Insurance number?

Yes, the application is free. You should only use the official GOV.UK website to apply. Be wary of third-party websites that charge a fee for this service.

What documents do I need to apply for a National Insurance number?

You will typically need your passport and your Biometric Residence Permit (BRP) or eVisa to prove your identity and your right to work in the UK.

Turn this into a certificate

Short, self paced courses with quizzes, a final exam and a verifiable certificate. Built for learners in the US and UK.

Browse courses