| Date | Document | Net |
|---|
It starts as an invoice.
You bill a customer. Line items, quantities, a total. This is the only thing you actually type — everything on this page after it is derived from this one record.
The same invoice is already a journal entry.
Not exported to accounting later, and not re-keyed by someone at month end. Receivable debited, revenue and VAT credited, in the same moment the invoice is saved — which is why the debits and credits cannot drift apart.
Then it gets paid.
Record the receipt and the customer balance closes itself. You never reconcile a payments list against an invoices list, because there was only ever one list.
It stops being a document and becomes data.
One row in the ledger, next to every other invoice, bill and expense. This is the step that most invoice tools skip — and the reason their users still keep a spreadsheet.
The reports were already written.
Profit & Loss, Balance Sheet, Cash Flow, ageing, VAT — 52 reports that read the ledger directly. Nothing is built; there is nothing to build, because the data was never in two places.
And then it tells you something.
Which is the whole point. You did not buy software to store invoices; you bought it to know where the money is. That answer is the same record you typed at the top of this section.