Guidance

National Insurance correction letter from HMRC

What you need to do after getting a letter from HMRC following a correction to your National Insurance contributions after 6 November 2022.

If you use your Business Tax Account to correct your National Insurance contribution payments after 6 November 2022, you will get a letter from HMRC.

If your employee could not be found

If we have not been able to find details for your employee, you will need to send us any information you have, including their date of birth and past addresses.

Send your letter to the following address, using the reference ‘NILEVY061122’:

HM Revenue and Customs
National Insurance Contributions and Employer Office
BX9 1BX

If you or an employee has overpaid due to the rate change on 6 November

If you have overpaid employer secondary National Insurance contributions, or an overpayment was identified after one of your employees submitted a refund request:

  1. Sign in to your PAYE Online for Employers.

  2. Check if any credit has been applied for secondary National Insurance contributions in your latest monthly statement (under ‘Credits’ shown in the centre of the statement).

If you have no liability, the credit will show under ‘Upcoming payments’ (to the right of the screen). It will be shown as an ‘unallocated credit’. You will not need to do anything else.

If you’re told you have not overpaid National Insurance contributions

If the letter advises you that you have not overpaid employer secondary National Insurance contributions, but you disagree, you will need to send us evidence of any deductions that apply.

Send your evidence to the following address, using the reference ‘NILEVY061122’:

HM Revenue and Customs
National Insurance Contributions and Employer Office
BX9 1BX

Updates to this page

Published 10 July 2023

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