Taxpayers have until next Tuesday to contest the expense values calculated by the tax authority for IRS tax deduction purposes regarding general family expenses and VAT invoice requirements. The deadline to check the Portal das Finanças and file a claim is March 31, the day before the submission period for 2025 income tax returns begins. While general family and VAT-related expenses must be contested by this date, other categories like health, education, and housing can be corrected directly on the tax return between April 1 and June 30.
Deadline for taxpayers to contest IRS expenses ends Tuesday
Sunday, 29 March 2026RSS
Context & Explainers
The IRS withholding tables (tabelas de retenção na fonte) are government-published schedules that determine how much personal income tax (Imposto sobre o Rendimento das Pessoas Singulares — IRS) employers must deduct from each paycheck. They take into account gross pay, marital status, number of dependents, and disability status.
The tables are updated annually (and sometimes mid-year when budgets change), directly affecting monthly take-home pay. When tables are revised downward, workers see more in their pay packet; when raised, less. Any difference between amounts withheld and the actual tax owed is settled when the annual IRS return (Modelo 3) is filed, typically between April and June.
Employees and pensioners should check the current tables — published by the Autoridade Tributária e Aduaneira (AT) — whenever they change, as the impact on net income can be significant.
Housing fiscal measures are government tax changes or incentives aimed at the property market — examples include changes to property tax (IMI Imposto Municipal sobre Imóveis), stamp or transfer taxes (IMT Imposto Municipal sobre Transmissões Onerosas de Imóveis) and income‑tax (IRS Imposto sobre o Rendimento das Pessoas Singulares) deductions for renovations or rental incentives. The estimated €200–300 million budgetary cost shows the measures have a meaningful impact on public finances and signals whether the government is prioritising tax relief for homeowners, landlords or construction, which can affect property prices and rental markets that matter to expats.
