If you get a bonus, that might be taxedwithheld at 50% because payroll is too lazy to figure out your taxes. You get the remainder back when you file your taxes. (Note this may mean you owe $200 at the end of the year instead of owing $1000. That still counts as you “getting” $800.)
One very slight correction in bold.
Also it’s 22% and it’s not solely because payroll is lazy. It’s actually set by federal statute