Thursday, December 7, 2017

Sum Ting Wong: Low top marginal tax rates since 1986 have NOT delivered

Low top marginal tax rates have NOT delivered since 1986.

The average top marginal rate has been 38% for the last thirty years, 49% lower than the average rate of 75% which prevailed from 1956 until the Reagan tax reform of 1986.

After the reform, stocks have done little better than before, but gross public debt has increased at a rate 21% higher than before, growth of current dollar GDP has plunged by 66%, and growth of household net worth has slowed by 48%.

Where did the gains from the Reagan tax cuts go?

You know the answer. The number of US billionaires has exploded from just 41 in 1987 to 536 in 2015, up 1,207%. The money has gone into the pockets of the few, instead of into investment. From 1960 to 1986 net domestic investment grew 846% whereas in the 30 years since 1986 the metric has grown by only 117%, a contraction of 86% under the more favorable personal income tax regime.

The lesson seems clear.

Higher marginal income tax rates force the wealthy to invest in business and derive their income from investments taxed at the preferred lower long term capital rates. Lower marginal personal income tax rates, however, entice them away from going through all the trouble, in turn depriving the economy of growth, employees of growing incomes and wealth, and the government of revenue.

Like the formerly sound public policy which invented the 30-year mortgage to force people to save for the future in the housing piggy bank, the time has come to reincentivize business owners to invest more in their businesses by making the personal income option less attractive.

Neither Republican tax bill does this.