The Tax and Customs Authority (Autoridade Tributária e Aduaneira or AT) has issued warnings regarding an increase in fraudulent schemes targeting taxpayers during the current income tax (Imposto sobre o Rendimento de Pessoas Singulares or IRS) filing period. Criminals are using the agency's name to send deceptive messages about refunds or outstanding debts to steal personal information.
Tax authority warns of rising cybercrime during tax season
Wednesday, 8 April 2026AI summary
Context & Explainers
The IRS withholding tables are government-published schedules used by employers, pension payers and other payers to calculate how much personal income tax (personal income tax (Imposto sobre o Rendimento das Pessoas Singulares) — IRS) must be deducted from each pay period. They take into account gross pay, pay frequency, marital status and dependents; updates (usually published annually or when the budget changes) affect your monthly take-home pay and are reconciled with your annual tax return (Modelo 3).
