Automatic sales book
The invoice enters the RCV as soon as SIAT validates it.
Every validated invoice goes straight into the sales book. Purchases export in the official format and tax credit is recalculated on the server. Forms 500 and 605, and UFV adjustments, in the same place.
Without MKA
What you’ll measure
Sample indicators with illustrative data. In MKA they are computed live from your operation.
Try it right here
This is the accountant’s tax-close screen. Press “Validate in SIAT” on each sales invoice: it appears in the sales book by itself. On the Purchases tab there’s a mistyped tax credit: press “Save” and watch the server recalculate it. Output and input tax update live, and you export each book in its official format. “Watch it run” plays it for you.
Example flow
Benefits
The invoice enters the RCV as soon as SIAT validates it.
Sales in 24 columns and purchases in 23 columns, ready to file.
The server recalculates each purchase’s tax credit so it doesn’t depend on what was typed.
The purchase book includes import declarations.
Form 500 and 605 screens inside the same accounting system, next to the RCV ledgers.
UFV adjustment run and mass revaluation.
In detail
All-in-One
Data flows between modules on its own: no integrations, no exporting or importing.
No. When SIAT validates the invoice, it is recorded in the sales book automatically.
No. It saves you the transcription and leaves books and forms ready for your accountant to review and file.
More in Invoicing & compliance
In 30 minutes we walk through your real flow: from sale to invoice, from stock to journal entry.