Self-employed: National Insurance

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Online forms

If HMRC needs to contact you about anything confidential they’ll reply by phone or post.


  • Telephone: 0300 200 3505
  • Textphone: 0300 200 3519

Phone HMRC if you’re self-employed and have a National Insurance enquiry or need to report changes to your personal details

Find out about call charges

Opening times:

8.30am to 5pm, Monday to Friday

Closed weekends and bank holidays

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Don’t include personal or financial information, eg your National Insurance number or credit card details.