For many years, countries have attracted foreign investors by offering tax incentives such as income tax holidays, reduced tax rates, enhanced deductions, and other fiscal benefits. The Philippines has also used these incentives to encourage investment in manufacturing, business process outsourcing, export services, logistics, renewable energy, and other priority sectors.
However, the global tax environment is changing.
Tax competition is no longer simply about which country can offer the lowest tax rate. Under the OECD/G20 Pillar Two rules, large multinational enterprise groups are expected to pay a minimum effective tax rate of 15% in every country where they operate.[1]
The proposed Qualified Domestic Minimum Top-Up Tax, or QDMTT, is the Philippines’ response to this new international tax framework. It would allow the Philippine government to collect any top-up tax arising from income earned in the Philippines before another country, such as the jurisdiction of the multinational group’s parent company, can collect it.
The Department of Finance reportedly eyes a new “top-up” tax on large global firms to help recoup more than ₱50 billion in potential revenues that may otherwise be lost under the global minimum tax rules. This highlights the revenue-protection purpose of QDMTT and reinforces the need for the Philippines to preserve taxing rights over income generated from Philippine operations.[2]
Understanding Pillar Two
To understand QDMTT, it is necessary to first understand Pillar Two.
Pillar Two is part of a global effort to ensure that large multinational companies pay a minimum level of tax. It generally applies to multinational enterprise groups with annual consolidated revenues of at least €750 million.[1] The basic rule is that these groups should pay at least a 15% effective tax rate in each jurisdiction where they do business.
This is different from simply looking at the corporate income tax rate stated in the law. What matters under Pillar Two is the effective tax rate, or the actual tax burden after considering incentives, deductions, exemptions, and other adjustments.[2]
For example, suppose a foreign multinational earns income in the Philippines. Because of tax incentives, its effective tax rate in the Philippines is only 10%. Under the global minimum tax rules, the expected minimum rate is 15%.
That creates a 5% gap.
That 5% may become the top-up tax under the global minimum tax rules. A top-up tax is the additional tax needed to bring the multinational group’s effective tax rate up to the 15% minimum. 2
The important question is: who gets to collect that top-up tax?
QDMTT Explained
QDMTT stands for Qualified Domestic Minimum Top-Up Tax. Although the name sounds technical, the idea is simple.
QDMTT allows a country to collect the top-up tax on low-taxed income earned within its own borders. In the Philippine context, this means that if a covered multinational group earns income in the Philippines and pays an effective tax rate below 15%, the Philippine government may impose a domestic top-up tax to bring the tax rate up to the global minimum.
Without a QDMTT, another country may be able to collect it, usually the country where the multinational’s parent company is located. With a QDMTT, the Philippines may collect the top-up tax first because the income was earned in the Philippines.
In simple terms, Pillar Two creates the global 15% minimum tax rule, while QDMTT allows the Philippines to collect the top-up tax before another country does.
QDMTT therefore helps preserve government revenue. It also ensures that the Philippines does not lose taxing rights over income generated from Philippine operations. This is why QDMTT is not merely another tax measure. It is also a response to the new international tax system.
What Does This Mean for Foreign Investors?
For large multinational groups with annual consolidated revenues of at least €750 million, QDMTT is very relevant. 2
Investors should understand that tax incentives may no longer work in the same way. A tax holiday, reduced tax rate, or special deduction may still reduce Philippine tax, but if the effective tax rate falls below 15%, a top-up tax may arise. Therefore, investors should focus not only on the statutory tax rate but also on the effective tax rate. Under Pillar Two, the effective tax rate determines whether top-up tax may be imposed.
Foreign investors should review their existing and future incentives. Some incentives may still be useful, especially if they support cash flow, expansion, or long-term operations. However, incentives that merely reduce the tax rate below 15% may have limited benefit for companies covered by Pillar Two.
QDMTT may provide more certainty. If top-up tax is unavoidable, investors may prefer clear domestic rules in the Philippines rather than having the tax collected in another country. A properly designed QDMTT may also help reduce uncertainty and simplify compliance for multinational groups.[1]
[1] OECD, Safe Harbours and Penalty Relief: Global Anti-Base Erosion Rules (Pillar Two). [https://www.oecd.org/content/dam/oecd/en/topics/policy-sub-issues/global-minimum-tax/safe-harbours-and-penalty-relief-global-anti-base-erosion-rules-pillar-two.pdf]
Conclusion
The proposed QDMTT represents an important shift in Philippine tax policy. It reflects the reality that the world is moving away from pure tax-rate competition and toward a system where large multinational groups are expected to pay a minimum level of tax.
For the Philippines, QDMTT may help protect tax revenues that might otherwise be collected by another country. For foreign investors, it means that tax planning must become more global, more transparent, and more focused on effective tax rates rather than headline incentives.
QDMTT is therefore not just about collecting more tax. It is about making sure that, under the new global rules, the Philippines keeps its taxing rights over income earned within its own borders.
The Philippines can still attract foreign investment, but the basis of competition must evolve. In the new global tax environment, low tax alone may no longer be enough. What will matter more are clear rules, efficient administration, strong infrastructure, skilled workers, and a stable business environment where investors can grow with confidence.
Article written by: Rhea Pelayo, CPA
References:
[1] OECD, Global Anti-Base Erosion Model Rules (Pillar Two). [https://www.oecd.org/en/topics/sub-issues/global-minimum-tax/global-anti-base-erosion-model-rules-pillar-two.html]
[2] Manila Bulletin, DOF seeks domestic top-up tax on large multinational firms to recoup over ₱50 billion in lost revenues, Sept. 3, 2025.
[3] OECD, Minimum Tax Implementation Handbook (Pillar Two). [https://www.oecd.org/content/dam/oecd/en/topics/policy-sub-issues/global-minimum-tax/minimum-tax-implementation-handbook-pillar-two.pdf?]
[4] OECD, FAQs on the Global Anti-Base Erosion Model Rules. [https://www.oecd.org/content/dam/oecd/en/topics/policy-sub-issues/global-minimum-tax/faqs-on-model-globe-rules.pdf]
[5] OECD, Safe Harbours and Penalty Relief: Global Anti-Base Erosion Rules (Pillar Two). [https://www.oecd.org/content/dam/oecd/en/topics/policy-sub-issues/global-minimum-tax/safe-harbours-and-penalty-relief-global-anti-base-erosion-rules-pillar-two.pdf]
