Tax authority news in Portugal

The Tax and Customs Authority (Autoridade Tributária e Aduaneira or AT) has notified approximately 33,400 landlords to report the termination of non-renewable lease agreements that have already expired. Some property owners have contested the notices, claiming they had already fulfilled their reporting obligations years ago.

The Tax Workers' Union (Sindicato dos Trabalhadores dos Impostos or STI) has warned of significant IT failures within the Tax and Customs Authority (Autoridade Tributária e Aduaneira or AT). The union reports that thousands of property assessment notifications have been blocked since January due to obsolete software, complicating work for staff and causing confusion for taxpayers.

Inspections conducted by the Tax and Customs Authority (Autoridade Tributária e Aduaneira or AT) identified 642 million euros in unpaid taxes among large taxpayers, marking a 6.64% increase from the previous year. The corrections primarily focused on Value Added Tax (Imposto sobre o Valor Acrescentado or IVA) and Corporate Income Tax (Imposto sobre o Rendimento das Pessoas Colectivas or IRC). These findings were detailed in the latest report on combating tax fraud and evasion.

The Tax and Customs Authority (Autoridade Tributária e Aduaneira or AT) announced it is changing its communication model with taxpayers. The agency will stop using traditional envelope-letters for official correspondence as part of a broader modernization of its digital services.

The three-month window to submit annual tax returns (declaração de IRS) for 2025 income opens today on the Finance Portal (Portal das Finanças). Taxpayers have until June 30 to file, regardless of whether they are employees, pensioners, or self-employed workers (trabalhadores a recibos verdes). Experts warn that refunds may be lower this year because the Tax Authority (Autoridade Tributária e Aduaneira or AT) adjusted withholding tables mid-year to leave more money in monthly paychecks.