Taxpayers must submit changes in household composition and validate deductible expenses on the Tax Authority Portal (Portal das Finanças) and confirm receipts via E‑Fatura before the deadline on Monday, according to tax guidance. Missing the window can mean lost deductions or delayed tax refunds, so residents who paid eligible expenses or had family changes this year should log in and check their records now. Those uncertain about document requirements should contact an accountant or the tax helpline.
Deadline to claim IRS deductions closes Monday
Friday, 27 February 2026AI summary
Context & Explainers
E‑fatura is the Tax and Customs Authority's online invoice portal (E‑fatura), where taxpayers register and validate invoices so they can claim IRS deductions and benefits. The guidelines in the story note that taxpayers must validate last year’s invoices on the portal by the beginning of March before submitting the annual IRS tax return.
The Tax Portal (Portal das Finanças) is Portugal's official online service where individuals and businesses access tax records, file returns, and make payments. On 6 February 2026 the Tax and Customs Authority (Autoridade Tributária e Aduaneira or AT) used the portal to warn taxpayers about scam SMS messages falsely demanding payment to 'avoid seizure'; residents should ignore unsolicited payment links and check the portal or contact AT directly.
