National Insurance Number

What is the National Insurance Number (NIN) and how to get it?

National Insurance Number

NIN – National Insurance Number – Everything You Need to Know

If you’re planning to move to or work in the United Kingdom, one of your top priorities should be obtaining the NIN, the National Insurance Number. The NIN is a personal identification code, assigned by the DWP (Department for Work and Pensions) in the United Kingdom. This code is essential for managing the social security and national insurance system in the UK.

The National Insurance Number consists of a unique combination of letters and numbers and remains unchanged throughout your lifetime. It’s important to note that the NIN doesn’t have an expiration date, so once obtained, it remains valid indefinitely.

Where Can you Find your NIN?

You can find your NIN in various documents, including:

  • In the payslips;
  • In your P60;
  • In letters related to your taxes, pension or allowances;
  • In the National Insurance section of your Personal Tax Account (PTA).


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Who Needs the National Insurance Number?

The National Insurance Number is required by various categories of individuals, including:

  • Employees;
  • Self-employees;
  • Trainees or students who wants to pay the contributions of their job;
  • Students who wants to apply for a loan to study;
  • Anyone who wants to apply for state benefits.

Most companies in the UK require the NIN as part of the hiring process, often even before considering your application, along with your Curriculum Vitae.

Keep your NIN Safe

To prevent identity fraud, it is crucial to keep your National Insurance Number safe. Make sure not to share it with unauthorized individuals and store it in a secure place. The British government places great emphasis on protecting the personal information associated with your NIN.

Who Could Ask for your National Insurance Number?

These organizations need to know what your NIN number is:

  • HM Revenue and Customs (HMRC);
  • Your employer;
  • The DWP – Department for Work and Pensions;
  • Your local council (municipality of residence), if you request housing subsidies;
  • Electoral Registration Officer (to verify your identity when you register to vote);
  • The Student Loan Company, if you apply for a student loan;
  • Authorized financial service providers who help you buy and sell investments such as stocks, bonds and derivatives: you can check whether your supplier is authorized.


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You can apply for the National Insurance Number only from British soil. It is one of the first things to do as soon as you arrive in the UK if you are planning to work or apply for a student loan.

You can request the National Insurance Number online.

BOOKING PHONE NUMBER 0800 141 2075 (only from UK)
NIN NOT RECEIVED PHONE NUMBER  0800 141 2079 (only from UK)

Who Can Apply for the NIN

  • You can apply for the NIN if you live in the United Kingdom and have the right to work in the UK.
  • You can also apply for the NIN if you are seeking employment or have a job offer to start working in the UK. Even if you’ve already started working, you can still request the NIN.


To obtain the National Insurance, you need to prove your identity. You can use the following documents:

  • A passport from any country
  • A visa or a job offer
  • A biometric residence permit (BRP)

You can also use a national identity card from:

  • A European Union country
  • Norway
  • Liechtenstein
  • Switzerland

How to Apply for the National Insurance Number

You can apply for your NIN online through our website. It is not possible to apply for the NIN by going directly to the Job Center.

If you provide all the details of your personal document and immigration status during the online application, you may not need to book an appointment at the Job Center for an interview. However, if these details have not been provided, you will need to book an appointment at the Job Center to complete the procedure.

Timeframe for Obtaining the NIN

Currently, the process to get the National Insurance Number can take up to 4 weeks from when you applied for it.

However, you can start working during this period, and once you receive your NIN, notify your employer. You don’t need to provide the original document; you can provide a photocopy or simply give them the number. The NIN identifies you. The NIN doesn’t have a temporary version, as was the case up to 10 years ago. Once obtained, it is valid forever.

Remember that the NIN is essential for working legally in the United Kingdom and ensuring that your tax responsibilities are fulfilled correctly.


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I Have Lost the NIN, Wow can I Recover it?

If for any reason you have lost your NIN or can’t remember it, there are several options to recover it.

Remember that the NIN doesn’t have an expiration date, and it will never change.

  • You can find the NIN in your payslip. It is always made of 2 initial letters, a series of 6 numbers and a final letter – Example NIN SP123456A.
  • Register your personal account at and go to the “income” section. In this section you can access your NIN and print a copy. You can also update your NIN data (for example if you changed your address). Generally you don’t need to change the address of the NIN because the address is updated by your employer.
  • For more information and other methods to recover your NIN visit the official website.

Tax Responsibilities

Your NIN is closely tied to your tax responsibilities in the UK. This code is used to calculate taxes and social security contributions, ensuring the proper fulfillment of your tax obligations.

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