New
Surcharge on the document total. The totals block of a quote, invoice or delivery note now has an “Add surcharge” button. You give it a name — “Service surcharge”, for example — and a percentage, and the amount appears as its own position at the end of the document. Removing it again is one click on the bin icon next to it.
Mixed VAT rates are split correctly. If a document contains positions at 7 % and at 19 %, one surcharge line is created per VAT rate with its matching share — together they add up to exactly the percentage you entered, down to the cent. The dialog shows this before you confirm, so you know what you are getting. A surcharge always carries exactly one VAT rate; anything else would report the wrong VAT.
The surcharge keeps up. Change a position afterwards and the surcharge adjusts automatically — even when a VAT rate disappears from the document or a new one appears. It prints on the PDF like any other position and is part of the e-invoice as its own line with its own VAT rate.
The discount field now points to the surcharge. Typing a negative value there gives you a hint about the new button instead of a silent zero.