Is the Xolo Go fee applied to the amount with or without VAT?

Xolo Go fee 5,9% is applied on the net sum i.e. without VAT.

For instance, if you receive €100 + 20% VAT = €120 from your customer, the VAT (which has to be paid to the authorities) gets deducted and it will be paid to the tax authorities by Xolo. You will receive €100 - 5,9% = €94,1 to your personal bank account.