If you're working in 2 or more countries in the EEA use the online service (CA8421i) to check which country's social security legislation applies to you.
If you normally work in 2 or more countries in the European Economic Area (EEA) you, or your agent can:
This allows HMRC to determine which country’s social security legislation will apply.
If you use the online form, you’ll get a reference number to use to track the progress of your form.
If you’re using an older browser, for example Internet Explorer 8, you’ll need to update it or use a different browser. Find out more about browsers.
You’ll need to fill in the postal form fully before you can print it. You can’t save a partly completed form so gather all your information together before you start to fill it in.
National insurance: application for a certificate of continuing liability when employees are going to work abroad (CA3822)
Use form CA3822 if you are sending employees to work in EEA country and keep them under the UK National Insurance scheme.
Don’t include personal or financial information like your National Insurance number or credit card details.
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