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2 clusters · 6 sources · 8 days · First seen · Last updated

Portugal tax and vehicle tax regulations

Overview

Portuguese companies are managing various fiscal obligations throughout October 2026, including SAF-T billing file submissions, social security declarations, and VAT-related filings.

In addition to these monthly deadlines, the government has announced a significant overhaul of the Unique Circulation Tax (IUC) payment schedule via Decree-Law no. 161/2026. Moving away from registration-month-based deadlines, the new system will introduce a fixed calendar.

A transition period will begin on January 1, 2027, with payment structures varying based on the tax amount owed. A definitive model is scheduled to take effect on January 1, 2028, where payment frequency—ranging from a single annual payment to three installments—will be determined by the total IUC owed across all a taxpayer's vehicles.

Entities

Banco de Portugal · Segurança Social · Autoridade Tributária e Aduaneira

Timeline

  1. [BUSINESS] 4 sources
    Portugal to change vehicle tax (IUC) payment schedule

    Portugal will replace its vehicle tax (IUC) registration-month deadline with a fixed payment calendar starting in 2027, with a permanent tiered installment system arriving in 2028.

  2. [BUSINESS] 2 sources
    Portugal tax deadlines for October 2026

    Portuguese businesses must meet various tax and social security deadlines in October 2026, including SAF-T submissions, VAT declarations, and IUC installment payments.

Sources

fatopaulista.com.br · hrportugal.sapo.pt · leak.pt · netthings.pt · sapo.pt · seucreditodigital.com.br