If Trump gets his way, would all this gamesmanship end up showing up as a shortfall in corporate tax receipts? In an insidious way, no. The tax avoidance planning triggered by a lowering of the corporate rate would have the effect of transforming individual income into corporate income. The corporate tax base, as a direct result, would increase and offset the revenue loss from the rate reduction.
In fact, the more avoidance planning that takes place, the greater the corporate tax receipts.
Of course, the corporate tax revenue numbers wouldn’t reflect the hemorrhaging in individual tax revenue almost certain to result from the corporate rate cut.
We have, in other words, the ultimate in cynical tax policy. If Trump and like-minded lawmakers (including some on the Democratic Party side of the aisle) succeed with their corporate tax cut plan, we would be likely to hear about the unbelievable effect this cut goes on to have on business activity. Arthur Laffer and his minions would ballyhoo the results as vindication for the Laffer Curve and trickle-down economics.
But this would, of course, all be a lie, albeit a damn difficult one to refute. Total tax revenue will have plunged, but ordinary Americans will not understand the cause. Most just won’t grasp the connection between a corporate tax rate cut and a plunge in individual tax receipts.
Would anything in Trump’s plan work to avoid this result? Ironically, yes. The Trump plan does include one notion that would likely decrease individual income tax revenue in a more direct fashion, without the need to convert individual income to corporate income. You see, Trump also wants a lower tax rate, comparable to the lower corporate rate, for businesses structured as “flow-through” entities — partnerships, S corporations, and limited liability companies. The income of those entities gets taxed to their owners at individual rates, under current law.
If Trump gets his way on that front, we likely won’t see massive tax avoidance planning using taxable corporations. Instead, we’ll see massive tax avoidance planning using flow-through entities. The revenue loss will be about the same, but more balanced between corporate and individual tax revenue.
To sum up: Trump’s corporate tax rate cut, standing alone, would cause a massive decrease in individual income tax revenue by shifting a large chunk of the individual tax base to corporations, where it would be taxed at lower rates. Throw in Trump’s cut in the tax rate on “flow-through” income, and the tax base doesn’t shift, but the revenue loss will be just as massive.