Every invoice carries a gapless number in a single series, the right tax lines, and your legal details. Issued invoices are immutable — corrections are credit notes, the way tax law expects them to be.
Most invoicing tools let you edit a document after you sent it, restart numbering when you feel like it, and leave the tax line to you. Every one of those is a problem the first time an auditor opens the folder.
Each invoice takes the next number in a single unbroken series and keeps it. Tax lines come from the sale, not from a template you maintain. An issued invoice is final — if something changes, the change is its own document.
Three products that share one account, one identity check and one set of records.
Invoices and payments for clients anywhere
Identity, tax and the paperwork behind them
Turn a payment into real access
Nisan opens on 18 November 2026. Issuing invoices is free; you pay only when you get paid.