# Facturación VERI*FACTU

> In-house invoicing system in development, designed to comply with VERI*FACTU.

In-house invoicing software system, currently in development, designed to comply with VERI*FACTU in continuous submission mode to the AEAT, under Real Decreto 1007/2023 and Orden HAC/1177/2024. It is an internal project of MEREBA, is not sold to third parties, and is shown here as an example of its development capability in invoicing and regulatory compliance.

- Status: Internal project in development
- Who it is for: For MEREBA's own use; not available to third parties.
- Technology: Python, py4web
- Platform: Web

## Features

- Designed to number invoices consecutively and under lock.
- Verifiable chain of SHA-256 fingerprints between invoices, in development.
- XML generation intended to be validated against the official AEAT schemas.
- Tax QR code at legal size and invoice PDF signed with PAdES-LTA (in development).
- Asynchronous submission queue designed to retry with the exact bytes.
- Compliance engine separate from the web layer, so that it can be tested in isolation.

## Frequently asked questions

### Is it available to other companies?

No. It is an in-house development by MEREBA and is not sold to third parties.

### What regulation does it target?

It is being developed to comply with VERI*FACTU, in continuous submission mode to the AEAT, under Real Decreto 1007/2023 and Orden HAC/1177/2024. The system is in development.

Page on the website: https://mereba.com/en/applications/facturacion-verifactu
Contact: info@mereba.com