FairInvoice

FairInvoice does one job properly: it creates accurate invoices for every order and delivers them automatically.Taxes are calculated line by line and rounding is unit-tested, so the totals on your invoices match your orders to the cent. Invoice and credit note numbers are sequential and gapless, the way accountants expect. Once issued, a document never changes.Refunds get proper credit notes, and any date range can be exported as a single ZIP for your accountant.