Automated tax auditing directly from Odoo with OpenCFDI

The tool that connects your Odoo with the SAT to automate tax audits and avoid accounting errors.

In Mexico, every company is required to issue and receive Digital Tax Receipts via the Internet (CFDIs). But once they’re issued or received… what’s next? 

Most organizations download the XML files manually from the SAT portal, and then a tedious task begins: comparing each CFDI with what is recorded in their accounting system. They do this through Excel spreadsheets, repetitive processes, or third-party tools that aren’t always integrated into their ERP.

The problem?
Some modules allow CFDI downloads, but very few audit or validate whether that information matches what the SAT has registered. On the other hand, Odoo, in its most recent stable version, does not include native features for downloading or auditing these documents.

This leaves many companies in a gray accounting area:

  • Without certainty that their records match the tax authority.
  • Exposed to human errors in reconciliations.
  • Vulnerable to fines and tax audits.

If this situation sounds familiar, you need to know OpenCFDI, our specialized development at Vauxoo that automates this process, connects your Odoo instance with the SAT, and turns a tedious and risky task into a reliable, efficient, and error-free process.

Is your SAT and your accounting system synchronized?

Many companies suffer the same pain month after month:

✔️ Manually downloading their CFDIs from the SAT

✔️ Comparing them one by one with their accounting system

✔️ Trying to find discrepancies and errors before fines arrive

This process is not only time-consuming and prone to error, but it also means dedicating human resources exclusively to repetitive tasks.

The solution: OpenCFDI

OpenCFDI is a specialized Odoo instance that connects directly with the SAT and your live Odoo to download, audit, and compare your CFDIs automatically.

What can it do?

  • Download CFDIs for income, expenses, payroll, freight waybills, and payments.
  • Validate if invoices were canceled, if amounts, RFCs, and dates match, and detect inconsistencies in payroll, waybill, and payment data.
  • Generate automated reports with discrepancies and alerts.
  • Sync daily, weekly, or monthly.
  • Support multiple RFCs in a single instance.
  • Secure access for authorized users.

Save time, reduce errors, and gain peace of mind ​

Companies with high invoicing volume and multiple RFCs are already using OpenCFDI to optimize their tax audits. Thanks to this tool, they have achieved:

Saving up to 80% of the operational time in audits.

Avoiding manual errors that previously slipped through.

Freeing the accounting team for strategic tasks.

As one of our users put it: "Before, auditing CFDIs was a nightmare in Excel. Now, everything runs on its own.”

Is OpenCFDI for you?

OpenCFDI was created for companies that:

✔️ Operate in México

✔️ Use Odoo as their ERP

✔️ Want to automate invoice validation

✔️ Are tired of Excel and afraid of penalties 

If your company wants to say goodbye to CFDI chaos and keep accounting aligned with the SAT.

Our team will show you how OpenCFDI can automate your audits in minutes.

Automated tax auditing directly from Odoo with OpenCFDI
Danna López [Vauxoo] May 7, 2025
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