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Quarterly declarations to Odoo: how to prepare the model 303 and 130

Manage your quarterly taxes efficiently from Odoo
April 3, 2026 by
Quarterly declarations to Odoo: how to prepare the model 303 and 130
Albert Cabedo


Quarterly tax returns are one of the main tax obligations for freelancers and businesses. Forms such as the 303 (VAT) and the 130 (Income Tax) require that the accounting information is well recorded and updated. Odoo facilitates this process by centralizing all billing and accounting in a single system.

In this article, we explain how to prepare forms 303 and 130 in Odoo and what aspects you should review to avoid errors.

The importance of good configuration in Odoo

For the tax forms to be generated correctly, it is essential that Odoo is well configured from the start. Proper assignment of taxes, accounting accounts, and journals ensures that the tax data reflects the reality of your business.

Before preparing the quarterly returns, it is advisable to review:

  • Correctly configured taxes
  • Registered customer and supplier invoices
  • Up-to-date bank reconciliations
  • Correctly selected tax period 

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How to prepare forms 303 and 130 in Odoo

From the Accounting, Odoo allows you to obtain the necessary data for forms 303 and 130 clearly and orderly. Thanks to the tax reports, you can review the taxable bases, fees, and results before submitting the return.

Odoo allows:

  • Consult taxes by period
  • Review VAT charged and supported
  • Analyze quarterly results
  • Export information for presentation



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Professional support for your quarterly declarations

Although Odoo facilitates tax management and allows easy access to the information needed to prepare forms 303 and 130, having specialized advice remains essential to ensure that the declarations are submitted correctly and within the deadlines established by tax regulations.

A professional review allows verifying that all accounting data is correctly recorded, that the applied taxes are appropriate, and that there are no errors that could affect the outcome of the declaration. Additionally, an advisor can detect possible issues such as incorrectly recorded invoices, incorrectly treated intra-community operations, or discrepancies between accounting and bank transactions.

Another important aspect is the interpretation of tax data. Beyond presenting the mandatory forms, an advisor can analyze the quarterly results and help the company or self-employed individual better understand their tax and financial situation. This allows for anticipating tax payments, planning cash flow, and avoiding surprises in future quarters or at the end of the fiscal year.

At Contaldia, we help companies and self-employed individuals prepare and review their quarterly declarations using Odoo as a working base. Our goal is to ensure that the tax information is correct, clear, and aligned with current regulations, allowing our clients to focus on developing their activities with greater peace of mind.


                                            



📩 Contact us and discover how we can help you manage your quarterly statements in Odoo safely and efficiently.


See: How to file taxes from Odoo: VAT, Income Tax...


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