Finanças · Portuguese Tax Authority
Correction of a past tax address — with Cartão de Cidadão

To correct the effective date of a tax address already changed on your Cartão de Cidadão. Blank PDF, with guidance on completing and signing it.
What it is used for
To correct the effective date of a tax address already changed on your Cartão de Cidadão.
More about this document
Fictional practical example
You have a Cartão de Cidadão and are preparing a request to correct your tax address for an earlier period.
What it is
AT Form B — Request for a retroactive change of tax address, for Cartão de Cidadão holders seeking to correct the effective date of an address already changed on the card. Includes the blank original with notes to attach to evidence of the dates. You can submit through e-balcão; AT assesses the evidence and decides the effects. Older notes on tax representation must be read alongside current rules and the period requested; electronic notifications may allow an exemption. It does not change the address on the card or guarantee the tax correction.
Collection with PedirDocumentos
We help you get the right form, explain what it is for and guide you through completing it. You receive the blank PDF after paying for the service, without needing to log in to the authority’s portal. Include it with other documents in the same individual request and payment.
Get formPoints to check and differences
This is a blank form, not a certificate or a document issued in your name. The person or organisation specified on the form is responsible for completing and signing it; we do not submit applications, book appointments or guarantee approval. The PedirDocumentos fee covers obtaining and organising the form, explaining its purpose and guidance on completing it. Check the applicable version and requirements with the authority.
Frequently asked questions
What is this form used for?
To correct the effective date of a tax address already changed on your Cartão de Cidadão.
Is the form already completed?
You receive a blank PDF with guidance. The form must be completed and signed by the person or organisation specified on it.
Can I request it with other documents?
Yes, through the individual journey, at the displayed price and with one final payment. No authority login is needed for this form.
Can Júlia help me complete it?
Yes. She can explain what each field means and answer your questions. Completing, signing and submitting it remains your responsibility or that of the person specified on the form.
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