Offshore worker's and mariner's National Insurance questionnaire

If you're an offshore worker or mariner, tell HMRC about yourself so it can advise you about your National Insurance contributions.


Offshore worker's National Insurance questionnaire


Where possible mariners and other offshore workers should complete and submit the Offshore Workers National Insurance questionnaire.

All completed questionnaires should be sent with copies of any signed contracts, and from your discharge book send:

  • pages 2 and 3
  • any pages from the year this form relates to

If you do not have payslips at hand do not delay sending this form.

All completed questionnaires should be returned to:

HM Revenue and Customs
Local Compliance
Marine Group
NE98 1ZZ
United Kingdom

Email HMRC to ask for this form in Welsh (Cymraeg).

Published 1 January 2014
Last updated 19 February 2019 + show all updates
  1. Offshore worker's questionnaire has been added.
  2. Postal address for written correspondence to the Marine National Insurance Contributions unit has changed.
  3. First published.