A recent Op Ed in the Boston Globe caught my attention and I couldn’t resist sharing it. If you want to understand how wealthy individuals and corporations use off-shore tax havens to avoid paying their fair share of taxes and what we can do about it, this article provides answers. 
- The best estimate is that 11.5% of personal wealth (i.e., $8.7 trillion), globally, is stashed in off-shore tax havens.
- This costs the U.S. government an estimated $32 billion a year in lost tax revenue from individuals. (Other countries’ governments probably lose $140 billion a year in tax revenue.)
- In addition, corporations dodge about $70 billion a year in U.S. taxes by using off-shore tax havens. This represents about 20% (one-fifth) of what the U.S. does collect in corporate income taxes each year. (Other countries’ governments probably lose $60 billion a year in tax revenue.)
- The roughly $100 billion per year the U.S. is losing to off-shore tax dodging is what the federal government spends on Food Stamps, other nutrition programs (such as school lunches), the Children’s Health Insurance Program (CHIP), Head Start, child care subsidies, and welfare COMBINED.
- Taxing corporate income based on what is called formulary apportionment would stop this tax avoidance. Under this approach, a corporation would pay U.S. taxes based on the portion of its sales that are in the U.S., regardless of any accounting gimmicks or other strategies that made it look like the income from those sales was in another country. This tax approach is in wide use today; many states use it to calculate state corporate income taxes. It is a tax approach that has been used since the days of multi-state railroad construction in the 1800s.
- Stopping individuals from using offshore accounts to avoid paying taxes would require international cooperation. Today, the IRS has a comprehensive system for tracking earned income. Even if you move from state to state or out of the country, the income you earn is reported to the IRS and you pay income taxes based on your total income. States with income taxes track income that you earn out-of-state and require you to pay state income tax on it. A similar approach should be applied to tracking other kinds of income and ownership of financial securities or assets that produce income. The U.S. passed the Foreign Account Tax Compliance Act in 2010 that requires foreign banks, including the notoriously secretive Swiss and Cayman Island banks, to share information with the IRS on accounts held by American clients. This is a starting point for the international cooperation needed to reduce tax dodging by the wealthy that hurts the U.S. and many other countries.
Tax avoidance by the wealthy contributes to the astronomical and growing inequality of wealth and income. It also means that everyone else must pay more in taxes to make up for the lost taxes when wealthy individuals and corporations don’t pay their fair share.
 Scharfenberg, D., 1/21/18, “A world without tax havens,” The Boston Globe