The Portuguese tax authority has issued Circular Letter No. 20273/2025 of 22 January 2025 on the municipal surcharge/surtax (Derrama Municipal) rates for corporate tax purposes for fiscal year 2024. This includes the standard surcharge rates for different listed municipalities as well as reduced rates and exemptions for taxpayers meeting certain requirements. The standard rates vary from 0.75% to 1.50%, while reduced rates as low as 0.01% are provided in certain municipalities. The requireme…