Singapore enacts Pillar Two GIR exchange and fallback filing rules

Final legislation replaces the Bill stage

The Finance (Income Taxes) Act was published as Act 23 of 2026. Part 3 amends the Multinational Enterprise (Minimum Tax) Act 2024, Singapore's legislation for multinational enterprise top-up tax and domestic top-up tax. The current consolidated Minimum Tax Act records the 4 November amendments, so the development is final legislation rather than the earlier Bill or consultation proposal.^[1][2][3]

GIR exchange framework

The amendments support Singapore's participation in the multilateral exchange framework for GloBE information returns. They broaden the statutory GIR definition and provide regulation-making power for Singapore's obligations under the GIR Multilateral Competent Authority Agreement. The power can address GIRs for financial years beginning on or after 1 January 2025.^[1][3]

Notice-triggered local fallback

Where the Comptroller does not receive a registered group's GIR from the relevant foreign competent authority within the period under the qualifying exchange arrangement, the Comptroller may give the designated local GIR filing entity written notice requiring a Singapore filing. The deadline in that notice must be at least one month after the notice is given. This is a contingent fallback, not a general second local filing for every Singapore group entity.^[1][2][3]

Disclosure, offences and commencement

The legislation also supports disclosure of protected information to a foreign competent authority where the GIR exchange conditions are met and extends offence provisions to failure to comply with the notice-based filing requirement. Some separate Minimum Tax Act amendments have different commencement treatment: the safe-harbour and OECD-reference changes described in the Act include deemed commencement, while sections 37, 39, 49(d) and 50 of the Finance Act depend on ministerial commencement dates. Groups should not treat those separate provisions as operative merely because the Act was published.^[1][3]

Prepare the fallback file

Affected groups should confirm the Singapore designated local GIR filing entity, retain evidence of the intended overseas filing and applicable exchange route, and maintain a response-ready GIR file in case the Comptroller issues a non-receipt notice. Implementing regulations and the current list of active GIR exchange relationships remain separate checks. This focused brief does not claim whole-package coverage of the Act's income-tax, incentive, GST or property-tax amendments.^[1][2][3]