Biden’s Top Marginal Capital Gains Tax Rate Would Be Highest in OECD

Leverage the Tax Code to navigate potential changes.

Source: Tax Foundation

President Biden’s proposal to tax capital gains at higher, ordinary income tax rates would lead the U.S. to have the highest top marginal tax rate on capital gains in the Organisation for Economic Co-operation and Development (OECD). The proposal would tax long-term capital gains as ordinary income for taxpayers with taxable income above $1 million and raise the top marginal income tax rate to 39.6 percent.

When combined with the 3.8 percent net investment income tax (NIIT) and average top state capital gains tax rates, the proposal would lead to a top combined rate of 48.4 percent—significantly higher than the current 29 percent rate.

Most OECD countries, including the U.S, levy taxes on capital gains when the gain is realized, or when an asset is sold for a profit. Capital gains taxes vary based on an investment’s holding period, type of asset held, and taxpayer’s income level. Many countries seek to incentivize long-term saving by providing a lower tax rate or a partial exemption on long-term gains.

In the U.S, short-term capital gains (held for less than one year) are taxed as ordinary income. Long-term capital gains (held for more than one year) are taxed at lower rates, ranging from 0 percent to 20 percent, plus a 3.8 percent NIIT, depending on an investor’s income. In addition to these federal taxes, states tax capital gains at an average rate of 5.2 percent, resulting in the 29 percent top combined rate.

The top marginal tax rate on long-term capital gains in the OECD is 19.1 percent. Eight OECD countries levy higher rates than the U.S, while Denmark applies the highest top rate of 42 percent.

The Biden administration’s proposal would make the U.S. top capital gains rate an outlier within the OECD at 48.4 percent, joining only two other countries with rates at or above 40 percent.

Top combined capital gains tax rate under Biden Tax Plan, Biden Capital Gains Tax Rate OECD

Investment income from corporations can be subject to corporate income tax in addition to capital gains taxes. A business must first pay corporate income tax, and therefore, investors see their gains from after-tax profits. The integrated tax rate on corporate income reflects both the corporate income tax and the dividends or capital gains tax—the total tax levied on corporate income. The integrated tax rate on corporate income distributed as dividends would rise from 47.3 percent to 65.1 percent under Biden’s tax plan, which would be highest in the OECD.

Integrated tax rate on corporate income would be highest in the OECD under Biden Tax Plan

Higher tax rates on individual shareholders reduce the return to saving and higher taxes on corporations raise the cost of investment, reducing saving and investment. Lower investment levels and reductions in capital stock translate to lower work productivity, reduced wages, and lower economic output.

Guide to Biden tax proposals

Questions people ask

What is the current top marginal tax rate on capital gains in the U.S.?

The current top combined tax rate on long-term capital gains in the U.S. is 29 percent. This rate includes federal rates, the 3.8 percent net investment income tax, and average state capital gains taxes. The rate applies to taxpayers in the highest income brackets.

How would Biden’s proposal change capital gains taxes for high earners?

Biden’s proposal would tax long-term capital gains as ordinary income for those with taxable income over $1 million and raise the top marginal rate to 39.6 percent. With the 3.8 percent net investment income tax and average state rates, the combined top rate would rise to 48.4 percent.

How do U.S. capital gains rates compare to other OECD countries under the proposal?

If the proposal passes, the U.S. would have the highest top marginal capital gains tax rate in the Organisation for Economic Co-operation and Development (OECD) at 48.4 percent. Only Denmark and one other country currently levy rates at or above 40 percent in the OECD.

Will short-term and long-term capital gains be affected differently?

Under current law, short-term capital gains (on assets held less than a year) are taxed as ordinary income, while long-term gains are taxed at lower rates. The proposal would tax long-term gains for high-income taxpayers at ordinary income rates, matching short-term gain treatment for this group.

What effect would higher capital gains taxes have on investment income from corporations?

Investment income from corporations is already taxed at the corporate level. After this, capital gains and dividends are also taxed. Biden’s proposal would raise the integrated tax rate on corporate income distributed as dividends from 47.3 percent to 65.1 percent, the highest in the OECD.