If you are applying for the same name
Your application is free of charge if you apply for a "shared" name e.g., you are applying for each other's surname or middle name with or without a hyphen.
To get the name change free of charge, you must however apply within three months after the date of your wedding.
> Read more about how to apply for a change of name at your wedding
If you are not applying for the same name
If you do not apply for a "shared" name, you have to pay a fee.
Example: you want to change your first name or delete your middle name at your marriage, but you are not applying for a middle name or surname from your future spouse. In this case, you must apply for a regular change of name with a fee.
> Read more about the fee
> Read how to apply for a "regular" change of name