Elizabeth Warren’s wealth tax won't work. This will

Democratic Sen. Elizabeth Warren of Massachusetts is dead-set on a wealth tax. It was a key plank of her failed presidential run last year, and she has now introduced legislation meant to wring more federal revenue from “ultramillionaires.”

Warren’s measure has essentially no chance of passing, because Republicans oppose it en masse and some Democrats—including President Biden—don’t support it, either. One reason: It would be a nightmare to enforce. But Biden himself has other tax ideas that are more plausible than Warren’s wealth tax and could surface later this year as Democrats look for new revenue to pay for a lavish infrastructure program and other projects.

Biden’s tax plan includes a raft of tax hikes on businesses and the wealthy that would raise about $2 trillion in tax revenue during a 10-year period, according to the Tax Policy Center. Getting any tax hike through Congress is tough, but Biden's proposal for higher taxes on the richest Americans—akin to Warren’s wealth tax—may represent the low-hanging fruit. Americans generally support tax hikes on the wealthy, giving Congress cover to enact them.

Instead of a wealth tax, Biden would target capital gains and inheritances for high-income Americans. For people with income above $1 million, Biden would raise the capital-gains tax rate to the same level as the income tax. The highest tax bracket is now 37%, but Biden wants to boost it to 39.6%, which was the level before President Trump lowered it in 2017. So Biden would raise the capital-gains tax from the current rate of 23.8% to 39.6%.

Rep. Pramila Jayapal, D-Wash., right, with Sen. Elizabeth Warren, D-Mass., at left, speaks during a news conference on Capitol Hill in Washington, Monday, March 1, 2021, to unveil a proposed Ultra-Millionaire Tax Act. (AP Photo/Susan Walsh)
Rep. Pramila Jayapal, D-Wash., right, with Sen. Elizabeth Warren, D-Mass., at left, speaks during a news conference on Capitol Hill in Washington, Monday, March 1, 2021, to unveil a proposed Ultra-Millionaire Tax Act. (AP Photo/Susan Walsh) · ASSOCIATED PRESS

He’d also raise the maximum estate tax rate from 40% to 45% and lower the amount exempt from tax from $11.7 million, for an individual, to $3.5 million. Another Biden change would eliminate the “step-up” rule that basically voids capital-gains taxes on assets that have appreciated in value when the owner dies and leaves them to somebody else.

The Tax Policy Center estimates Biden’s hike in the capital-gains rate would raise $370 billion over 10 years, while the estate-tax changes would net another $220 billion. That’s $590 billion over a decade, or $59 billion per year, which is meaningful revenue even by Washington’s inflated standards. And that doesn’t include any change in income-tax rates for businesses or individuals.

The problem of enforcement

Warren says her wealth tax would raise $3 trillion over a decade, or $300 billion per year. Many tax experts are extremely doubtful. There are two basic problems with a wealth tax. The first is enforcing it. Financial assets such as stocks have a known market value, but many other assets—privately owned businesses, real estate that’s not for sale, art and collectibles—don’t have a known value. The billionaires Warren wants to target could have hundreds or thousand of assets that would need to be valued every year, to collect tax on it. Treasury Secretary Janet Yellen highlighted this when she said recently that a wealth tax has “very difficult implementation problems.”