If you accept payment forms other than cash (Credit, Debit, Bitcoin, etc), you can set them up in the Payment Types tab.
For each payment type, you're able to enter a name, fee, and fee description.
Whatever you put in the fee description will be broken out along with the fee on any order receipt.
The payment types you create will be visible on your online menu and at POS.
Payment type fees are applied after all taxes, discounts and adjustments.
If you'd like help setting up delivery fees, please look here.