Biden's Combined Federal State Capital Gains Tax Rate: DC, CA, NY, NJ Total Rates Over 50 Percent: Map

From Tax Foundation, April 23, 2021, "Top Combined Capital Gains Tax Rates Would Average 48 Percent Under Biden’s Tax Plan" by Garrett Watson and Erica York:

President Joe Biden’s American Families Plan will likely include a large increase in the top federal tax rate on long-term capital gains and qualified dividends, from 23.8 percent today to 39.6 percent for higher earners. When including the net investment income tax, the top federal rate on capital gains would be 43.4 percent. Rates would be even higher in many U.S. states due to state and local capital gains taxes, leading to a combined average rate of 48 percent compared to about 29 percent under current law.

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Source: Tax Foundation

Thirteen states and the District of Columbia would have a top combined capital gains tax rate north of 50 percent. California, New York, and New Jersey would have combined rates of more than 54 percent. Top combined rates in some localities would go even higher. For example, New York City levies a local capital gains rate of 3.876 percent, which means an investor would pay an all-in rate of nearly 58.2 percent. Residents of Portland, Oregon would face a top capital gains rate of 57.3 percent.