When all you have is a hammer, everything does indeed look like a nail. This is the best way to describe government officials' unoriginal and often destructive thinking. No matter the problem du jour, the answer is always more government spending. But more spending requires more tax revenue, which is not always easy to acquire in the modern global economy.
That's how we got the current effort by some United States officials to impose a global minimum tax. They are hammering away to extract more revenue from U.S.-based multinational corporations by limiting competition from countries with more welcoming tax systems.
In 2017, former President Donald Trump's administration improved the corporate tax system by lowering the top corporate income tax rate from 35 percent to 21 percent. At the same time, the worldwide tax system, under which income is taxed by a firm's home country no matter where it is earned, was replaced by a territorial tax regime. In this system, income is taxed only in the country where it is earned. For example, an American company earning income in France is taxed only in France, not in the U.S.
This new system is a vast improvement for U.S. companies, which in turn helps repatriate their foreign profits here. However, it does put pressure on politicians to further lower tax rates and diminish incentives for corporations to locate their production abroad or shift reported profits overseas. Don't forget that there are still plenty of nations with corporate tax rates lower than those imposed in the United States.
It's worth noting that in 2017 the United States also adopted a minimum tax called Global Intangible Low-Taxed Income, or "GILTI," for companies that earned a high rate of return yet also paid low taxes overseas. It wasn't a good idea, but it had more merit than what Treasury Secretary Janet Yellen now has in mind—namely to impose a minimum tax based on a company's worldwide average tax rate instead of on a country-by-country basis.
If Yellen truly believes what she says about taxing U.S. corporations, all she has to do is convince Congress to implement these alleged improvements. But she likely knows that raising rates here would lead to more capital flight out of the United States, so she's resorting to coercing other governments to make their tax regimes less appealing to U.S.-based companies. Hence, the idea of cajoling other governments to impose a global 15 percent minimum tax rate on foreign companies' incomes earned within their borders.
Under this cartel of countries, with foreign governments committed to refusing to compete for capital by cutting tax rates, the incentives for U.S. companies to avoid high U.S. taxes are seriously reduced. So are the incentives for governments to keep their own tax systems modest.
Whether Yellen can convince countries like China and India to go along is an open question. The proposal also faces political headwinds in the European Union, which usually supports any attempts to hinder tax competition.
Finally, it's unclear that Yellen can convince Congress to go along with her scheme. The reason, in part, is that enough legislators are skeptical of whether a global minimum tax will truly increase Americans' prosperity, especially given the current fragility of the global economy.
Such skepticism is in order. First, economists at the Organization for International Cooperation and Development, who examined the effects of various types of taxes on the economic growth of developed nations, found corporate taxes "to be most harmful for growth, followed by personal income taxes, and then consumption taxes."
Second, while legal liability for these taxes is placed on corporations, several academic studies have found that the vast majority of the costs are passed along to workers in the form of lower wages.
Third, while the argument for raising more revenue is often presented as a tool of fiscal responsibility, the reality is quite different. Countless studies show that feeding the government beast with more corporate-tax revenue increases spending rather than reduces government budget deficits. And as my recent review of the literature with Mercatus Center economist Garett Jones reveals, more deficit spending will likely hinder economic growth.
Under these circumstances, why not give the hammer a rest and for a change try a new tool? A nice, sharp saw, for instance, could help slice from the budget unnecessary spending and reduce the constant need for more revenue, which drives away American companies.
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