Corporations are laughing at the idea of paying taxes as nearly $1 trillion goes offshore every year, researchers say

But, according to our estimates, it hasn’t worked. Instead of reining in the use of tax havens – countries such as the Bahamas and Cayman Islands with very low or no effective tax rates – the problem has only gotten worse.

By our reckoning, corporations shifted nearly $1 trillion in profits earned outside of their home countries to tax havens in 2019, up from $616 billion in 2015, the year before the global tax haven plan was implemented by the group of 20 leading economies, also known as the G-20.

In a new study, we measured the excessive profits reported in tax havens that cannot be explained by ordinary economic activity such as employees, factories and research in that country. Our findings – which you can explore in more detail along with the data and an interactive map in our public database – show a striking pattern of artificial shifting of paper profits to tax havens by corporations, which has been relentless since the 1980s.

Global crackdown

The current effort to curb the legal corporate practice of using tax havens to avoid paying taxes began in June 2012, when world leaders at the G-20 meeting in Los Cabos, Mexico, agreed on the need to do something.

The Organization for Economic Cooperation and Development, a group of 37 democracies with market-based economies, developed a plan that consisted of 15 tangible actions it believed would significantly limit abusive corporate tax practices. These included creating a single set of international tax rules and cracking down on harmful tax practices.

In 2015, the G-20 adopted the plan officially, and implementation began across the world the following year.

In addition, following leaks like the Panama Papers and Paradise Papers – which shed light on dodgy corporate tax practices – public outrage led governments in the U.S. And Europe to initiate their own efforts to lower the incentive to shift profits to tax havens.

Profit-shifting soars

Our research shows all these efforts appear to have had little impact.

We found that the world’s biggest multinational businesses shifted 37% of the profits – or $969 billion – they earned in other countries (outside the headquarter country) to tax havens in 2019, up from about 20% in 2012 when G-20 leaders met in Los Cabos and agreed to crack down. The figure was less than 2% back in the 1970s. The main reasons for the large increase were the growth of the tax avoidance industry in the 1980s and U.S. Policies that made it easier to shift profits from high-tax countries to tax havens.

We also estimate that the amount of corporate taxes lost as a result reached 10% of total corporate revenue in 2019, up from less than 0.1% in the 1970s.

In 2019, the total government tax loss globally was $250 billion. U.S. Multinational corporations alone accounted for about half of that, followed by the U.K. And Germany.

Global minimum tax

How do policymakers fix this?

So far, the world as a whole has been trying to solve this problem by cutting or scrapping corporate taxes, albeit in a very gradual way. In the past 40 years, the global effective corporate tax rate has fallen from 23% to 17%. At the same time, governments have relied more heavily on consumption taxes, which are regressive and tend to increase income inequality.

But the root cause of profit-shifting is the incentives involved, such as generous or lenient corporate tax rates in other countries. If countries could agree on a global minimum corporate tax rate of, say, 20%, the problem of profit-shifting would, in our estimation, largely disappear, as tax havens would simply cease to exist.

This type of mechanism is exactly what more than 130 countries signed onto in 2021, with implementation of a 15% minimum tax set to begin in 2024 in the EU, U.K., Japan, Indonesia and many other countries. While the Biden administration has helped spearhead the global effort to implement the tax, the U.S. Has notably not been able to get legislation through Congress.

Our research suggests implementing this type of tax reform is necessary to reverse the shift of ever-greater amounts of corporate profits going to tax havens – instead of being taxed by the governments where they operate and create value.

Ludvig Wier is External Lecturer of Economics, University of Copenhagen and Gabriel Zucman is Associate Professor of Economics, University of California, Berkeley.

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