The only correct way to ensure payment for invoices issued in the current year, where payment was made in advance, is to create advance invoices for those payments in the previous accounting period, match them with the payment still within the previous year, and then apply a deduction of these advances to the issued invoices in the current year.
Payment of This Year's Invoice Using Last Year's Payment
How to match last year's client payments with invoices issued this year and mark them as paid?
Written by Lenka Haringerová
