What is an IRS comprovativo?

The comprovativo de entrega is the official PDF proof of submission from the Portuguese tax authority (AT - Autoridade Tributaria) that confirms your IRS declaration was submitted. It contains every field (campo) from your Modelo 3 declaration - income, deductions, tax owed or refunded, and which annexes (Anexos) were included. You receive it automatically after filing, or you can download it from the Portal das Financas at any time.

Which IRS annexes does this tool support?

This tool currently supports Anexo A (employment income), Anexo B (business and professional income of sole traders, trabalhadores independentes), Anexo E (investment income), Anexo F (rental income), Anexo G (capital gains), Anexo H (deductions and tax benefits), Anexo J (foreign income), Anexo L (tax incentive regimes), and the Social Security annex (SS). Additional annexes are being added.

Is my IRS file sent to any server?

No. Your comprovativo PDF is read entirely in your browser, and the file never leaves your device. If you ask for the breakdown by email, the values read from it are sent to our server, which uses them to send that one email and keeps none of them.

What does 'ler comprovativo IRS' mean?

'Ler comprovativo IRS' means reading or interpreting your IRS comprovativo - the PDF proof of submission of your Portuguese tax declaration. This tool reads the comprovativo for you, showing each field (campo) in plain language so you can understand what was filed in your name.

IRS 2026 filing season

See your IRS declaration explained, field by field

Understand exactly what was filed in your name on your comprovativo (Modelo 3) - every field in plain language, so you know whether to re-file or adjust. Start with the PDF, or let us pull it from the Portal das Finanças. Free, no signup needed to read it.

Processed entirely in your browser. Your file never leaves your device.

Availability

This reader is open to everyone, with no sign-up needed. Descodify is pre-launch and invitation-only, so we are not accepting new users right now. That also closes IRS filing to anyone without a login. Existing users can still sign in and read their previous IRS declarations. Descodify opens to new users in January 2027. That is the date Descodify opens, not a tax deadline: the Modelo 3 submission period is set separately by law.

See what you get - a real example, explained

Drop your declaration PDF here

Sample data. Start below with your own declaration to see your real results.

Two ways to start

Have the PDF? Upload it

Drop your comprovativo (Modelo 3) PDF and see every field explained. Nothing leaves your browser.

Drop your declaration PDFs here (up to 3)

Don't have the PDF? We'll fetch it

Fetch mine from the Portal - free

Currently supports Anexo A, B, E, F, G, H, J, L, and SS. More annexes coming soon.

I don't have it yet - how do I find my declaration file?

The file is called a comprovativo de entrega - it's the official proof of submission from the Portuguese tax authority confirming what was submitted in your name. You probably already have it.

Already have it?

If you already have a PDF from your accountant or the portal - upload it now ↑

1. Check your email (most common)

Search your inbox for “comprovativo” or “IRS”. Your accountant or consultant likely sent it as a PDF attachment after filing. Even if it's in Portuguese - that's the right file.

2. Download it from Portal das Finanças

Step-by-step instructions

Go to the Portal das Finanças and log in with your NIF and password (or Chave Móvel Digital).
Navigate to Cidadãos → IRS → Consultar Declaração.
Select the year (e.g. 2024 for last year's filing).
Click “Comprovativo de Entrega” - this downloads the PDF.

3. Don't have access to the portal?

Ask your tax consultant - they have your file on record and can send it by email.
Request a new password - on the Portal das Finanças, click “Recuperar senha”. A new password arrives by mail within a few days.
Use Chave Móvel Digital - if activated, you can log in without a portal password.

Found your file? Upload it here ↑

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