Applying for an A1/certificate of coverage

It is easy to apply for an A1/certificate of coverage online via TWinternet. There are far fewer questions to answer online than on the paper application form. And you will often receive a response within a week. You can also see online how far your applications have progressed.

Before you request an A1/certificate of coverage, check whether a special situation applies to your employee or your company.

Applying via TWinternet

You can apply for an A1/certificate of coverage via TWinternet if your company is based in the Netherlands.

If your company is based outside the Netherlands, you need to fill in a paper application form.

Applying using a paper form

If you cannot apply via TWinternet, download and print the form. Fill in the form and send it to us by post.