13.3% of all income (State) +
39.6% of all income (Federal) +
5.3% of all income (Federal double tax on State Tax - thanks, Donny) +
6.2% of all income (Social Security - Individual)
=====
64.4%
Then of course your employer pays another 6.2% of gross earnings on your behalf for social security too. And of course, in tech, your employer has to pay for your healthcare too, an average of $19,616, which also actually comes out of your paycheck. [1] Feel free to work out what percentage of your gross earnings that amounts to and tack that on top also. Good thing we've got the freedom to save the remaining ~33% while people go without basic health cover and social services.
In years I earn a lot, I'd actually be better off in Canada.
[1] https://www.kff.org/health-costs/report/2018-employer-health...