It is not economics--it is simple effective tax rate addition. So think and have your own facts right before you claim someone is incorrect in their statement.
The article by the left CNBC even states that rates could be above 60% in some states, but that only includes the
effective Federal income tax rate, the State income tax, and the Sales tax rate, but does not include the 6.2% Social Security, the 1.45% Medicare, and the approximate 1% Unemployment Insurance rates that is withheld from employees gross income. 62% plus 8,65%= 70.65%
Biden's tax plan could create a tax rate of as much 62% for New Yorkers and Californians, studies show
WWW.CNBC.COM
While Americans earning less than $400,000 would, on average, receive tax cuts under Biden's plan, the highest earners would face double-digit increases in their official tax rates, according to nonpartisan analyses.