On September 2, Ordinance No. 290/2025/1 was published, approving Model 62 Registration Declaration and the respective instructions for completing it. This Declaration is intended to comply with the provisions of Article 45(3) of the Global Minimum Tax Regime (RIMG), approved by Law No. 41/2024 of November 8, which, in turn, transposed Council Directive (EU) 2022/2523 of December 14, 2022, on ensuring a minimum level of global taxation for multinational enterprise groups and large national groups in the Union.

The purpose of this declaration is to inform, simultaneously:

1) The beginning of the initial phase of international activity of a multinational group or, in the case of a large domestic group, the start of the first fiscal year in which it became subject to the RIMG;

2) Its status as a reporting constituent entity or constituent entity of the group corresponding to the designated local entity and, if the constituent entity is not required to file the declaration, under the terms of Article 45(2) of the RIMG, its ultimate parent entity or designated reporting entity, as well as the jurisdiction in which those entities are located.

The declaration must be submitted electronically via the Portuguese Tax Portal (“Portal das Finanças”) within the deadlines set out in the RIMG. Whenever there are changes in the composition of the group in relation to a previous tax period – namely the entry or exit of entities – a new declaration must be submitted, which will apply from that same tax period. If it becomes necessary to replace a previously submitted declaration, a new declaration must be submitted for the same tax period, which will apply for the group(s) in question from that fiscal year.

Failure to submit the declaration or submission after the legal deadline will be punishable with a fine of €5,000 to €100,000, plus an additional 5% for each day of delay in complying with this obligation. Omissions or inaccuracies are subject to a fine ranging from €500 to €23,500. The possibility of waiving the fine is expressly provided for during the first years of application of the regime, provided that certain conditions are met.