In Tax Notes International today, two Ernst and Young experts describe how corporate tax reforms in Japan have made America an even bigger outlier in its punitive treatment of multinational corporations:

Japan’s recent adoption of a territorial tax system as part of a broader tax reform reduces the tax burden on the foreign-source income of Japanese multinational corporations.

Before the Japanese reform, the two largest economies had both high corporate income tax rates and worldwide tax systems. Now the United States not only has the second-highest corporate income tax rate of the OECD countries, it is also one of the few that still have a general worldwide tax system.

The Japanese corporate tax reform is part of a global trend toward reduced taxation of corporate income, which often takes the form of a significantly reduced corporate tax rate but also is reflected through reduced taxation of foreign-source income.

The details of the president’s budget proposal to reform deferral are expected in the coming weeks. As we await the specifics, it is clear that the direction of the proposal runs counter to this strong current of global corporate tax reform with lower overall corporate tax rates and reductions in domestic taxation of foreign-source income.

In simple terms, Japan’s reforms may give firms such as Toyota or Hitachi an advantage over firms such as Ford or General Electric in international markets.

Alas, U.S. policymakers don’t seem to understand that in a globalized world of free-flowing capital we need to change our uncompetitive tax policies. At Cato, we will keep trying to educate them, but it is sad that our economy loses jobs and investment because our elected leaders are such slow learners compared to leaders in Japan, Jordan, Canada, and elsewhere.