Seafarers: National Insurance

Email

Email HMRC about National Insurance if you're a seafarer

You can email HMRC:

  • if you have a question about National Insurance and working offshore
  • to send information for a Mariner’s National Insurance questionnaire you have already completed

Phone

Check your National Insurance liability if you’re resident in the UK

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

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

Telephone:
03000 582 419

Outside UK:
+44 3000 582 419

Opening times:

Our phone line opening hours have temporarily changed to:

Monday to Friday: 8am to 4pm

This is due to having fewer advisers available to answer calls because of the measures put in place to stop the spread of coronavirus.

You can also find out information in:

Check your National Insurance liability if you’re not a UK resident

Call HMRC to check your National Insurance liability if you’re a resident of another country, your employer makes National Insurance contributions on your behalf and you work:

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

Telephone:
0300 200 3500

Textphone:
0300 200 3519

Outside UK:
+44 191 203 7010

Opening times:

Our phone line opening hours have temporarily changed to:

Monday to Friday: 8am to 4pm

This is due to having fewer advisers available to answer calls because of the measures put in place to stop the spread of coronavirus.

You can also find out information in:

Find out about call charges

Post

Write to HMRC if you have a question about National Insurance and work:

  • on a ship
  • offshore in the oil and gas industry in the designated UK sector of the Continental Shelf

You do not need to include a street name, city name or PO box when writing to this address.

Couriers should use a different address.

ISBC, Campaigns and Projects
HM Revenue and Customs
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United Kingdom