Uk national insurance contributions 2026

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The document is an application form for a refund of Class 4 National Insurance contributions (NICs) from HM Revenue & Customs. It outlines the necessary steps to complete the form, including providing personal details, contribution history, and signing a declaration. The document also specifies conditions under which refunds may be reduced or denied, emphasizing that applications should only be made after the relevant tax year has closed.

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Click ‘Get Form’ to open the UK National Insurance Contributions form in the editor.
Begin by filling in your personal details in Part 2, including your title, National Insurance number, surname, forename(s), date of birth, and address. Ensure accuracy as this information is crucial for processing your application.
In Part 4, provide details regarding your self-employment. Include the start and end dates of your self-employment (if applicable) and your Unique Tax Reference number (UTR). This section helps establish your eligibility for a refund.
Next, complete Part 5 by detailing the contributions you have paid. Fill in the tax year and specify the total Class 1, Class 2, and Class 4 NICs paid. Make sure to double-check these figures for correctness.
Finally, sign the declaration at Part 5 confirming that all information provided is accurate and that you are applying for a refund of overpaid NICs. Don’t forget to include the date of signing.

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We have answers to the most popular questions from our customers. If you can't find an answer to your question, please contact us.

Is National Insurance contribution mandatory in the UK?

You pay mandatory National Insurance if youre 16 or over and are either: an employee earning more than 242 per week from one job.

How much are National Insurance contributions in the UK?

National Insurance rates if youre employed Your weekly earningsNI rate for 2025/26 0 to 242 0% 242.01 to 967 8% Over 967 2%1 more row

Is it worth filling gaps in National Insurance?

If you look like youll fill or overfill the contribution years with part time / full time / self employed work then paying for extra years is a waste of money. If you have gaps in the future (living overseas / leisure etc) it may be worth paying to fill those gaps.

How long do you pay National Insurance in the UK?

If you work - either as an employee or self-employed - and your earnings are over a certain level you pay National Insurance contributions. You pay NICs from age 16 until you docHub State Pension age. If youre employed you pay Class 1 National Insurance contributions based on your level of earnings.

How many full years of NI do I need for full pension?

You usually need 35 qualifying years of National Insurance contributions to get the full amount.

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How many years of NI contributions do I need to get a full pension?

You usually need 35 qualifying years of National Insurance contributions to get the full amount. Youll still get something if you have at least 10 qualifying years - these can be before or after April 2016.

Should I pay UK National Insurance if I live abroad?

If you work abroad, you will usually pay social security contributions (called National Insurance contributions in the UK) in the country where youre working. You might have to pay National Insurance in the UK while youre working abroad. You might also need to get a certificate to show that you pay in the UK.