Seafarers: National Insurance

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Phone

HMRC Mariners Unit

  • Telephone: 03000 582 419
  • Outside UK: +44 3000 582 419

Phone HMRC if you’re a mariner or seafarer to:

  • check you’re liable to pay NI
  • check you’re paying the correct amount NI
  • get advice on making voluntary NI contributions
  • check the status of your employer
  • claim a refund of NI

Find out about call charges

Opening times:

8am to 4pm, Monday to Friday

Closed weekends

National Insurance contributions International Caseworker

  • Telephone: 0300 200 3500
  • Textphone: 0300 200 3519
  • Outside UK: +44 191 203 7010

Phone HMRC to check your NI liability if you’re a resident of another country, your employer makes NI contributions on your behalf and you:

  • work for, or are paid by, a company based in the UK
  • work on a ship registered in the UK or Isle of Man
  • work in UK inshore waters
  • work on a ship engaged in exploration or exploitation of oil or gas in the designated UK sector of the Continental Shelf

Find out about call charges

Opening times:

8am to 8pm, Monday to Friday
8am to 4pm Saturday

Closed Sundays and bank holidays

Post

Write to this address if you have a query about National Insurance and work on a ship or offshore in the oil and gas industry in the designated UK sector of the Continental Shelf.

HM Revenue and Customs - Individuals and Small Business Compliance
Marine Group
SO970
Newcastle
NE98 1ZZ
United Kingdom

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