Mitt Romney is being criticized for supporting “territorial taxation,” which is the common-sense notion that each nation gets to control the taxation of economic activity inside its borders.
President Obama raised…his proposals for tax credits for manufacturers in the United States to encourage the creation of new jobs. He said this was greatly preferable to Mitt Romney’s support for a so-called territorial tax system, in which the overseas profits of American corporations would escape United States taxation altogether. It’s not surprising that large multinational corporations strongly support a territorial tax system, which, they say, would make them more competitive with foreign rivals. What they don’t say, and what Mr. Obama stressed, is that eliminating federal taxes on foreign profits would create a powerful incentive for companies to shift even more jobs and investment overseas — the opposite of what the economy needs.
Since even left-leaning economists generally agree that tax credits for manufacturers are ineffective gimmicks proposed for political purposes, let’s set that topic aside and focus on the issue of territorial taxation.
Or, to be more specific, let’s compare the proposed system of territorial taxation to the current system of “worldwide taxation.”
Worldwide taxation means that a company is taxed not only on it’s domestic earnings, but also on its foreign earnings. Yet the “foreign-source income” of U.S. companies is “domestic-source income” in the nations where those earnings are generated, so that income already is subject to tax by those other governments.
In other words, worldwide taxation results in a version of double taxation.
The U.S. system seeks to mitigate this bad effect by allowing American-based companies a “credit” for some of the taxes they pay to foreign governments, but that system is very incomplete.
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