BEPS Pillar Two and the 15% Multinational Top-up Tax require large multinational groups operating in Singapore to top up their effective tax rate to a global minimum of 15%. Singapore implemented this through the Multinational Enterprise (Minimum Tax) Act 2024, effective for financial years beginning on or after 1 January 2025, via a Multinational Enterprise Top-up Tax and a Domestic Top-up Tax.
Raffles Corporate Services works with a panel of corporate and employment law firms; this article is general information, not legal advice.
What BEPS Pillar Two and the 15% Multinational Top-up Tax are
BEPS Pillar Two is the OECD’s global minimum tax. It ensures that in-scope multinational enterprise (MNE) groups pay an effective tax rate of at least 15% in every jurisdiction where they operate. Where a group’s effective rate in a country falls below 15%, a top-up tax brings it up to the floor. Singapore gave the rules domestic force through the Multinational Enterprise (Minimum Tax) Act 2024.
Singapore applies two mechanisms. The Multinational Enterprise Top-up Tax (MTT) is an Income Inclusion Rule that captures low-taxed profits of group entities located outside Singapore. The Domestic Top-up Tax (DTT) captures low-taxed profits of group entities located inside Singapore, keeping the top-up revenue in Singapore rather than ceding it to another jurisdiction.
Who is in scope
The rules apply to MNE groups with annual consolidated group revenue of EUR 750 million or more in at least two of the four preceding financial years. Purely domestic groups and smaller multinationals are outside the regime. For an in-scope group, every constituent entity in Singapore is potentially affected, including holding companies, operating subsidiaries and financing vehicles.
If your group sits below the EUR 750 million threshold, the ordinary Singapore corporate tax rules continue to apply, and the reliefs described in our Budget and holding-company guides remain fully relevant. Start with Singapore Holding Company 2026: Tax Benefits, Structure and Setup Guid for the structuring view and BEPS Pillar Two and 15% Multinational Top-up Tax — Timeline and proces for the compliance calendar.
Eligibility and requirements checklist
In-scope groups should work through the following before their first affected year end:
- Confirm the EUR 750 million revenue test against the consolidated financial statements for the relevant look-back years.
- Identify every Singapore constituent entity and its effective tax rate under the GloBE rules, which differ from the statutory 17% headline rate.
- Register for MTT and DTT with IRAS, and prepare to file the GloBE Information Return (GIR).
- Map available Qualified Refundable Tax Credits and substance-based income exclusions, which can reduce the top-up.
- Update transfer-pricing and country-by-country reporting so the GloBE computation is consistent with existing filings.
Cost, timeline and the numbers that matter
The key figures for a compliance plan:
- Minimum effective tax rate: 15%.
- Revenue threshold: EUR 750 million in at least two of the last four financial years.
- Effective date in Singapore: financial years beginning on or after 1 January 2025.
- Singapore headline corporate tax rate: 17%, which means many groups already exceed the 15% floor before top-up, but timing differences and incentives can push the GloBE effective rate below it.
Registration and GIR filing deadlines are set by IRAS and are tied to the group’s financial year. Because the first returns fall due after the initial in-scope year, groups have a window to build systems, but the data requirements are heavy and should not be left to the filing month.
Interaction with Singapore incentives
Pillar Two changes the calculus for tax incentives. A concessionary rate that pushes a Singapore entity’s effective rate below 15% may simply trigger a domestic top-up, transferring the benefit from the company to the tax authority unless the incentive is redesigned as a qualifying refundable credit. This is why Budget measures and Pillar Two must be read together; see Singapore vs Hong Kong 2026: Work Pass, Tax, Cost of Living and PR Com for the wider talent and cost context that shapes where groups locate substance.
Section 10 of the Income Tax Act 1947 charges income tax on the income of a company, and the Multinational Enterprise (Minimum Tax) Act 2024 sits beside that charge as a separate top-up mechanism rather than a change to the ordinary rate. Authoritative guidance is published by sso.agc.gov.sg and the Ministry of Finance BEPS explainer at www.mas.gov.sg.
Common mistakes and gotchas
Groups frequently assume the 17% headline rate guarantees they are above the 15% floor. It does not, because the GloBE effective rate is computed on a different base and can be depressed by tax incentives, accelerated allowances and timing differences. A second error is late registration; the obligation to register and file the GIR is independent of whether any top-up is ultimately payable. Third, teams underestimate the data burden of tracking deferred tax and covered taxes entity by entity.
FAQs
Who does BEPS Pillar Two apply to in Singapore?
MNE groups with annual consolidated revenue of EUR 750 million or more in at least two of the four preceding financial years.
When did Singapore's top-up taxes take effect?
For financial years beginning on or after 1 January 2025, under the Multinational Enterprise (Minimum Tax) Act 2024.
What is the difference between MTT and DTT?
The MTT is an Income Inclusion Rule for low-taxed foreign group entities; the DTT captures low-taxed profits of Singapore entities, keeping the top-up revenue in Singapore.
Does Singapore's 17% rate mean we are automatically above 15%?
Not necessarily. The GloBE effective rate is computed differently and can fall below 15% because of incentives, allowances and timing differences.
Need help with this? Call, SMS or WhatsApp +65 8501 7133, or email [email protected]. Raffles Corporate Services works with a panel of corporate and employment law firms; this article is general information, not legal advice.