Everybody want this don't they! Please can we set this up! I know I don't have the time to manually change every invoice that is paid early, and I can bet your bottom dollar, we all want early payments
When GST first came in the ATO required an Adjustment Note raised for discounts. Is that still the case. Quite like John's suggestion. As for the account, depends where you want the Discount to sit in Expense or minus in Income. Of course there is GST to be applied to the discount. So a Journal would need to be raised clearing the dummy Discount Bank Account.