Filing tax returns via the old entrepreneurs’ portal

The old portal for entrepreneurs has been closed since 1 July 2024. Switch to Mijn Belastingdienst Zakelijk now. Or manage your business tax affairs with accounting software or via a tax service provider.

Find more information at:

Log in to the old entrepreneurs' portal

Log in to the old entrepreneurs’ portal with your user name and password. You received these login details from us after your registration with the Netherlands Chamber of Commerce (KVK). Have you lost your login details? Then call the Tax Information Line.

Please note!

Your user name and password are personal. They are automatically issued only once.

For information on the safe use and storage of passwords, please visit (only available in Dutch).

Having problems logging in?

Are you having problems logging in to the old entrepreneurs’ portal? Please read what you can do to resolve this on the page 'Login problems on the old entrepreneurs' portal'.

When you are logged in

When you are logged in to Mijn Belastingdienst Zakelijk, you will find an overview of your tax returns. It shows which returns you still need to file or have already filed. Subsequently, you can file your tax return. For some taxes, you do this online and for others offline. If you are filing a tax return offline, download the form, complete it, sign it and submit it.

Please note!

For security reasons, the portal will be locked automatically if you have not entered any data for more than 30 minutes. You will then have to log in once again.

Signing your tax return

If you file your tax return online, you sign your tax return using your user name and password.

If you file a tax return offline, you will sign your tax return by hand.

Return messages

When you file a digital tax return via the old entrepreneurs’ portal or manage other tax matters in this portal, you will receive a return message from us.

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