Accounting for SumUp fees (card)

Hi,

I have found other posts covering this topic but from years ago and the layout has changed since then.

I take card payments via SumUp and want to account for the gross amount as well as the fee from SumUp rather than just the net amount I receive in the bank. What is the best way to go about this? I have a separate invoice system so am not using ClearBooks for this.

Is there a way to enter the gross amount and then account for the fee as a negative? Some posts suggest setting up a clearing account but I'm after the most straightforward way of doing it.

Thanks