It will be perfect if you add the (Billable) checkbox beside the Bank Charges field when an invoice is paid (either through the Invoice itself, or by Invoice Payment inside the Contacts and any other possible place).

I found this Billable checkbox inside the Expense which is very good, but having it beside the Bank Charges will make things easier for us.

For our business, we do put the bank charges on the customers, so if they issue the payment with putting the charges on us, this fees will be added to their next invoice.

For now, if they send the payment of the invoice for example as $1000, and we receive $950 due to the bank charges, we put that we received $1000 (so we can close the invoice), and then go to Expenses and add the $50 as Bank Charges expense and put it as billable to add it to his next invoice. And it will be faster to make this from the same screen of invoice payment.

Also it will be great having this (Billable) fees to be added to the recurring invoice (next invoice) automatically, since now there is no place to add it to next invoice automatically...

Thanks.