Apply for a certificate or document if self-employed in the EU, EEA or Switzerland (CA3837)
Use this form to apply for a certificate or document if you are self-employed and going to work temporarily in the EU, Norway, Iceland, Switzerland or Liechtenstein.
Read the National Insurance for workers from the UK working in the EU, Norway, Iceland, Switzerland or Liechtenstein from 1 January 2021 guide to find out if you need to complete this form.
What you’ll need
If you or an agent complete the application, you must say if you:
- have changed your name and if so, what your previous name were
- are a national of the EU, Norway, Iceland, Switzerland or Liechtenstein and if you have an EU Settlement Scheme status
- have more than one nationality (you must give details about how you got each one)
- have a family member who is a national of the EU, Norway, Iceland, Switzerland or Liechtenstein (you must give their details, including their relationship with you)
How to apply
Apply online
You need a Government Gateway user ID and password. If you do not have a user ID, you can create one when you apply.
You will be given a unique reference number when you submit the form. You should send any further information that cannot be included in the online form by post (giving your unique reference) to:
PT Operations North East England
HM Revenue and Customs
BX9 1AN
United Kingdom
You can track the progress of the form online using the same reference number.
If you’re an:
- individual, use the online form
- agent, use the agents online form
Apply by post
You need all the information before you fill in the form as you cannot save a partly completed form.
Fill in the form on screen, print it and post it to us.
Email us to ask for this form in Welsh (Cymraeg).
More information
You should tell us about any changes in your self-employment, particularly if the intended period of work in the EU, Norway, Iceland, Switzerland or Liechtenstein does not take place, or ends before the intended date.
We may check throughout the period you work in the EU, Norway, Iceland, Switzerland or Liechtenstein, to make sure you meet the conditions in the EU social security rules or one of the social security agreements between the UK and Ireland.
Last updated 6 June 2022 + show all updates
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An address has been added to send further information if it cannot be included in the online form.
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First published.