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3 ways to make Trump's tax plan better

President Trump is willing to cut everybody’s taxes. Hooray. But that’s the easy part, and odds are slim such a tax plan could pass Congress if it blows a hole in the federal budget.

The spare outline of the tax plan Trump presented on his 97th day in office would slash corporate and individual income tax rates, in the hope that more cash in the hands of businesses and consumers would help the economy grow faster. That’s standard supply-side theory, which has never proved true in reality. As Trump’s team beefs up the plan and eventually presents it to Congress, budget hawks will insist on other measures to make up at least some of the federal revenue lost through cutting tax rates.

National Economic Director Gary Cohn, left, accompanied by Treasury Secretary Steve Mnuchin, speaks in the briefing room of the White House, in Washington, Wednesday, April 26, 2017.
National Economic Director Gary Cohn, left, accompanied by Treasury Secretary Steve Mnuchin, speaks in the briefing room of the White House, in Washington, Wednesday, April 26, 2017.

As presented, Trump’s plan could add $5 trillion or more to the national debt over a decade. During Ronald Reagan’s tax-cutting presidency in the 1980s, the national debt rose by just over $1 trillion. With debt a much larger share of GDP today, there’s little to no headroom for tax cuts that could hasten a debt crisis and hike the portion of federal spending that goes toward interest payments.

So what to do? And what’s the point of cutting some taxes if you raise others, for no net gain to taxpayers? The idea of “revenue-neutral” tax cuts may seem confusing, but in reality there can be excellent reasons to shift the tax burden around, even if there’s no net tax cut, which is the same as no net addition to the federal debt.

A HIGHER SHAREHOLDER TAX

Trump wants to slash the corporate rate from 35% to 15%, which is appealing because it would encourage more companies to do business in the United States. It would also kill a lot of federal revenue, of course. One way to offset the budgetary damage would be to tax capital gains and dividends at the same rate as income–39.6% for top earners–instead of the lower rates on the books now, typically 15% or 20%. This combination of changes would fix a few major distortions in the corporate tax code. Research by economists Alan Viard of the American Enterprise Institute and Eric Toder of the Tax Policy Center suggests such a plan could substantially improve business performance while adding little or nothing to the debt.

Sure, there would be complexities, such as figuring out whether to impose the tax every year, on an ongoing basis, or only when shareholders sell an asset. But there are complexities throughout the tax law, and this setup might end other complexities. Lowering the corporate rate would draw a lot of profits held overseas by US companies back to the United States, for instance, and probably end “inversions” in which US companies move their headquarters to another country where taxes are lower. It might even lure more foreign companies to the United States.