You register a new name by sending the form Coordinated register notification. The name of the sole proprietorship must include the owner’s surname. It is the surname as registered in the National Population Register that has to be used.
If the sole proprietorship is registered in the Central Coordinating Register for Legal Entities, the change is free of charge. Changes in names registered in the Register of Business Enterprises entail a fee.
If you change your surname in the National Population Register, for example, if you get married, please report a change of business name to us. You register a new name by submitting the Coordinating register notification. This change is free of charge. Additionally, if you make other changes to your business name, it will entail a fee.
On the page How do I choose a name for my company? you can read more about the choice of names and what considerations you need to take.