The best way to figure out your withholding is to use our resources here : https://turbotax.intuit.com/tax-tips/irs-tax-forms/how-to-estimate-federal-withholding/L99CO0yTK This link includes our withholding calculator which is very easy to use and allows you to enter multiple streams of income :https://turbotax.intuit.com/tax-tools/calculators/w4/
