Singapore’s Pillar Two Registration Requirements: What Multinational Groups Should Know
Last updated on 25 May 2026
Singapore has commenced the registration process for multinational enterprise (“MNE”) groups that fall within the scope of the OECD’s BEPS 2.0 Pillar Two framework under the Multinational Enterprise (Minimum Tax) Act 2024 (“MMT Act”).
While the Pillar Two framework took effect for financial years beginning on or after 1 January 2025, businesses are now entering the operational compliance phase, which includes registration, reporting, and filing obligations.
Under the new framework, qualifying MNE groups may be subject to Multinational Enterprise Top-up Tax (“MTT”) and Domestic Top-up Tax (“DTT”). These measures form part of a global OECD initiative to ensure that large multinational groups are subject to a minimum effective tax rate of 15%, regardless of where profits are earned.
The MTT generally applies to low-taxed overseas profits of multinational groups headquartered in Singapore, whereas the DTT applies to low-taxed profits of entities operating in Singapore.
For example, a Singapore-headquartered multinational group may have overseas subsidiaries operating in jurisdictions with very low tax rates. Under the MTT framework, Singapore may impose a top-up tax on those overseas profits to bring the effective tax rate closer to the global minimum rate of 15%.
Similarly, a multinational group with operations in Singapore may currently benefit from tax incentives, resulting in an effective tax rate below 15%. Under the DTT framework, Singapore may impose a domestic top-up tax so that the profits arising in Singapore are taxed closer to the global minimum threshold.
Not all businesses will fall within the scope of the new regime. In general, the framework applies to MNE groups with annual consolidated group revenue of at least €750 million in at least two of the four preceding financial years, and which have constituent entities or operations in Singapore.
Businesses should also note that registration obligations may still apply even where little or no top-up tax is ultimately payable. The Ultimate Parent Entity (“UPE”) is generally responsible for notifying IRAS, although a Singapore entity or authorised tax representative may handle the registration process on behalf of the group.
For many multinational groups, the challenge may not only be computing the tax payable, but also gathering the necessary financial, ownership, and jurisdictional information across multiple countries and entities within the reporting timelines. This may require coordination between tax, finance, legal, and compliance teams across the organisation.
For groups with a 31 December 2025 financial year-end, registration is generally due by 30 June 2026. IRAS has also indicated that penalties may apply for failure to comply with notification and registration requirements where applicable.
Although the Pillar Two framework mainly affects large multinational groups rather than SMEs, Singapore entities within international corporate structures may increasingly receive requests for financial and operational information from headquarters, auditors, tax advisors, and compliance teams as organisations prepare for global Pillar Two compliance obligations.
