That's due to rules and regulations here in Germany. We need to have our outgoing and incoming invoices being handled properly to not run into tax fraud issues.

By talking to creators from e.g. OnlyFans, the biggest issues they faced was explaining their earnings to the tax authorities with no proper invoices at hand.

By further automating those tasks, we will be able to reduce costs dramatically and might get rid of the bookkeeping fee alltogether.

Maybe you want to just include it in the fee itself. It feels silly to have a separate fee when you advertise with 7%. At the very least it’s 7%+0.49. It’s not my problem that you have to hire an external accountant, and not something that I think is relevant for your customers.