# Portugal's Portal das Finanças, explained

Short guides to the questions people ask most about Portugal's tax portal: what do I owe, where is my IRS return, and how do I pay in full, in parts or in installments.

*Updated 18 September 2026*

- [How to see what you owe the Finanças](https://tudocerto.app/en/guides/what-do-i-owe): Where to see your tax debts on Portugal's Portal das Finanças, what each line and deadline means, and what to do next. Step by step, in plain English.
- [Where is my IRS return?](https://tudocerto.app/en/guides/irs-return-status): The stages of a Portuguese IRS return on the Portal das Finanças, from submission to assessment and the payment reference, and what to do at each one.
- [How to set up a payment plan with the Finanças](https://tudocerto.app/en/guides/payment-plan): How to set up a tax payment plan (plano de prestações) on Portugal's Portal das Finanças: how many installments, when a guarantee is needed, what it costs in interest, step by step.
- [How to pay the Finanças by MB WAY](https://tudocerto.app/en/guides/pay-by-mb-way): Pay a Portuguese tax bill (nota de cobrança) by MB WAY from the Portal das Finanças, or with the payment reference. Step by step.
- [How to pay part of a debt to the Finanças](https://tudocerto.app/en/guides/pay-in-parts): How to pay only part of a bill on Portugal's Portal das Finanças: where the request lives, which bills accept it and what happens to the rest.
- [How to get a second copy of a tax bill](https://tudocerto.app/en/guides/second-copy): Where to issue a second copy (2ª via) of a tax bill on Portugal's Portal das Finanças, and what else the bill's detail page shows.
- [IRS, IMI and IUC deadlines in Portugal](https://tudocerto.app/en/guides/tax-deadlines): When Portuguese IRS is filed and paid, which months IMI property tax is due and when IUC road tax falls due. And why the date on your own bill is the one that counts.
- [Portuguese tax terms, in plain English](https://tudocerto.app/en/glossary): What the Portuguese terms on the Portal das Finanças mean, in plain English: nota de cobrança, nota de liquidação, juros de mora, coima, execução fiscal, IMI, IUC and more.

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Source: https://tudocerto.app/en/guides

tudo certo. is an independent tool and is not affiliated with the Autoridade Tributária e Aduaneira. We don't provide tax advice. Figures reflect official 2026 rules; always confirm yours on the Portal das Finanças.