You will be paying self-employment tax for Social Security and Medicare--which will be about 15%, plus ordinary income tax. We do not know anything else about your tax situation--so we do not know what -- if any -- tax credits and/or deductions you will be eligible for, or what tax bracket you will be in for the ordinary tax.
But since none of it will be withheld by an employer, you will be paying at tax time, or you should be making estimated quarterly payments to avoid a big tax bill next year.
https://www.calcxml.com/calculators/self-employment-tax-calculator (non-TT site)
https://ttlc.intuit.com/community/self-employed/help/what-is-the-self-employment-tax/00/25922
https://ttlc.intuit.com/questions/1901110-do-i-need-to-make-estimated-tax-payments-to-the-irs
https://ttlc.intuit.com/questions/3398950-what-self-employed-expenses-can-i-deduct
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
