For years, countries have competed for international business by offering lower corporate tax rates.
Ireland built part of its economic model around a low corporate tax rate. Cyprus and Malta developed competitive international business environments. Luxembourg became a major financial centre. Other jurisdictions used tax incentives, exemptions and special regimes to attract investment.
That competition is now being challenged.
The OECD’s Pillar Two framework introduces a 15% global minimum effective corporate tax rate for large multinational groups, and on December 12, 2022, EU member states reached agreement on implementing the measure across the European Union. On December 15, the Council formally adopted the Pillar Two Directive. The rules are aimed at multinational and large domestic groups with annual consolidated revenue of at least €750 million.
The obvious question is whether this is the beginning of the end of international corporate tax competition.
I don’t think it is.
It is the beginning of a different form of competition.
The 15% Number
The first point that is often misunderstood is what the 15% actually means.
It is not simply a new global corporate tax rate.
The Pillar Two rules are designed around an effective tax rate, calculated on a jurisdiction-by-jurisdiction basis. Where the effective rate falls below 15%, the rules can result in a top-up tax.
This is very different from saying that every company in every country will suddenly pay 15% corporate tax.
The rules are targeted principally at large multinational groups and large domestic groups meeting the €750 million threshold. For the vast majority of small and medium-sized businesses, therefore, this is not a direct 15% minimum-tax regime. The OECD’s GloBE framework likewise describes the €750 million threshold and the 15% minimum effective rate as the central parameters of Pillar Two.
That distinction matters.
It means the immediate effect of Pillar Two should not be exaggerated. But it would also be a mistake to assume that its significance is confined to a relatively small number of multinational groups.
The policy direction matters.
The End of the Race to the Bottom?
The political argument behind Pillar Two is straightforward.
If one country offers a very low corporate tax rate, multinational groups may have an incentive to locate profits there rather than where the underlying economic activity takes place.
Governments have responded by attempting to establish a floor.
If a large multinational group has an effective tax rate below 15% in a particular jurisdiction, the international rules are designed to create an additional tax charge to bring the effective taxation up to the minimum level.
The European Commission and Council have presented this as a way of limiting the race to the bottom in corporate taxation. The Council specifically described the measure as intended to limit downward competition in corporate tax rates while reducing the risks of base erosion and profit shifting.
But a minimum rate does not eliminate competition.
It simply changes what governments compete on.
Tax Competition Will Not Disappear
A company does not choose a country solely because of its corporate tax rate.
It also looks at the availability of skilled labour. It considers infrastructure, political and legal stability, access to markets, regulation, banking, the cost of employing people, intellectual property protection and the quality of professional services.
Increasingly, it also considers whether the tax system is predictable.
If the minimum corporate tax rate becomes 15% for the groups within the scope of Pillar Two, these factors become more important, not less.
The competition moves from:
“What is your tax rate?”
to:
“What do I get for the tax I pay?”
That is a much more sophisticated form of competition.
It is also consistent with the broader argument I made in The European Tax Competition Nobody Wants to Talk About. Europe is not abandoning tax competition. It is changing the terms on which that competition takes place.
The New Tax Competition
This is where I think the consequences become more interesting.
Countries will increasingly compete through measures that may not simply involve reducing the headline corporate tax rate.
They can compete through infrastructure. They can compete through refundable tax credits and investment incentives. They can compete through R&D support, skilled immigration, regulatory efficiency and access to capital. And they can compete by creating an environment in which a business can actually operate efficiently.
This is potentially a healthier form of competition.
A country that wants to attract a multinational cannot simply offer a low tax rate.
It has to offer an ecosystem.
The jurisdictional decision therefore becomes broader. Tax remains part of the equation, but it is increasingly being evaluated alongside the quality of the economic environment in which the business will actually operate.
What Does This Mean for Smaller Investors?
For investors, the €750 million threshold is important.
The global minimum tax is principally aimed at the largest corporate groups. A privately owned company, investment vehicle or portfolio company below the relevant thresholds will not simply become subject to a 15% global minimum tax because Pillar Two exists.
The analysis becomes more complicated where businesses form part of a larger consolidated multinational group.
This is particularly relevant to private equity.
A private equity investor may own a number of businesses through different structures and jurisdictions. Whether those businesses fall within Pillar Two depends on the applicable ownership and consolidation rules, the size of the relevant group and the characteristics of the entities involved.
The lesson is therefore not that every investment structure suddenly needs to be rebuilt.
The lesson is that group structure and tax analysis are becoming increasingly important.
Private Equity Will Need to Pay Attention
Private equity has traditionally been very focused on tax efficiency.
That is understandable.
The difference between a 10% and 20% effective tax rate over the life of an investment can materially affect investor returns.
But the global minimum tax introduces another consideration.
Tax efficiency cannot simply be measured by the lowest available statutory rate.
Investors will increasingly need to consider how the entire structure works.
Where is the operating company?
Where is the intellectual property?
Where are the employees?
Where is management?
Where is income generated?
Where is tax actually paid?
And what happens when the investment is sold?
This is not necessarily bad for private equity.
In fact, it may favour investors who already build structures around genuine economic substance rather than simply attempting to locate profits in the lowest-tax jurisdiction.
The underlying principle is consistent with the broader shift toward more sophisticated international wealth structures described in The New Geography of Wealth.
Cyprus and Malta Still Have a Role
For smaller economies such as Cyprus and Malta, the arrival of Pillar Two should not automatically be interpreted as the end of their international investment models.
The real question is what happens beyond the corporate tax rate.
If a jurisdiction provides an effective legal system, professional services, financial infrastructure, access to European markets, an educated workforce and a competitive environment for international businesses, it can remain attractive even if the tax advantage becomes less significant for the very largest multinational groups.
The same principle applies elsewhere in Europe.
A country cannot rely indefinitely on tax alone.
But neither does it necessarily need to.
Its competitiveness can instead rest on the combination of taxation, infrastructure, professional expertise, regulation, access to markets and the ability to support genuine economic activity.
The Large Multinational Will Have Fewer Options
The biggest impact may be felt by the largest multinational groups.
Historically, a sufficiently large international group could structure its operations across multiple jurisdictions and potentially reduce its overall tax burden through differences between national tax systems.
Pillar Two is designed specifically to make that strategy more difficult.
The OECD’s framework establishes a coordinated system intended to ensure that multinational enterprises within its scope pay at least a 15% effective rate on income arising in each jurisdiction in which they operate.
For the largest groups, tax planning therefore becomes less about finding a jurisdiction with a very low headline rate.
It becomes more about understanding the interaction between jurisdictions.
That is a fundamental change.
The Real Question Is Effective Tax
For investors, the headline corporate tax rate has never told the entire story.
A jurisdiction with a 10% corporate tax rate but high operating costs, expensive labour and inefficient regulation may be less attractive than a jurisdiction with a higher tax rate and a much better business environment.
The same applies to international investment structures.
The relevant question is not:
“Where is tax lowest?”
It is:
“Where is the overall economic return highest after tax?”
That is a much more sophisticated calculation.
It also reflects a wider trend in international wealth management: investors increasingly have to evaluate taxation as one component of a broader jurisdictional decision rather than as an isolated variable. That was the theme of Investment Migration Is No Longer Just About a Passport, published two months before this article.
The Global Minimum Tax Does Not Create Global Tax Harmonisation
There is another important distinction.
A 15% global minimum tax does not mean that corporate taxation has been harmonised around the world.
Countries will continue to have different tax systems.
They will continue to have different tax rates.
They will continue to have different deductions and incentives.
They will continue to have different regulatory environments.
And they will continue to compete for investment.
The difference is that the largest multinational groups will operate within a new international floor.
That is a significant change, but it is not the same thing as global tax uniformity.
Indeed, the existence of a floor may make the remaining differences between jurisdictions more economically significant. Once the lowest end of the tax-rate spectrum becomes less decisive, businesses have greater reason to compare the broader value offered by competing jurisdictions.
What Happens Next?
The next few years will be about implementation.
On December 15, 2022, the Council formally adopted the Pillar Two Directive, following the agreement reached earlier in the month. EU Member States were required to transpose the directive into national law by the end of 2023.
That means businesses have a period in which to understand the consequences.
Some jurisdictions will lose part of the advantage created by low corporate tax rates.
Others will discover that their broader economic proposition is strong enough to compensate.
Some tax incentives will become less valuable, particularly where they simply reduce the effective tax rate below the Pillar Two minimum without generating a corresponding economic advantage.
Others may remain highly relevant.
And investors will increasingly look beyond the tax rate itself.
This is precisely why Hungary’s earlier resistance to the EU minimum-tax proposal was significant. As I noted in Hungary Blocks Global Minimum Tax, the debate was never simply about a percentage. It was about the future of national tax competition and the ability of individual jurisdictions to design their own competitive tax policies.
The Beginning of a New Competition
The 15% global minimum tax is therefore unlikely to end tax competition.
It may actually make the competition more sophisticated.
Countries will have fewer opportunities to compete simply by offering very low effective corporate tax rates to the world’s largest multinational groups.
They will have to compete on substance.
Businesses will have to think more carefully about where they actually operate.
Investors will have to analyse the complete economic and tax environment rather than simply looking at headline rates.
And jurisdictions that want to attract international capital will have to offer something more than tax.
The global minimum tax is therefore not the end of international tax competition.
It is the beginning of its next phase.
The battlefield is moving from tax rates to economic substance.