In the US, contractors also pay extra taxes (both sides of the payroll tax, ~15% of salary, instead of just one side, ~7.5% of salary).
Smart freelancers also charge more than they’d make per hour as a salaried worker because contract work is less stable than salaried work. When you do have work, you need to put a little extra in the bank to make up for the weeks when you don’t have work.
Add the out of pocket cost of benefits you won’t be paid for; the vacation time you won’t be paid for; any additional costs you have to shoulder (office at a coworking space? Business class internet? New computer?).
Multiply by your freelance security factor. Update that total to account for any extra taxes. Don’t accept less than that.
