After you file

You can try changing the W-4 on file with your employer ... choose the SINGLE filing status ( Not the HOH)  and enter an amount on line 4A that represents your non wage income  and put an amount on line 4C of your choosing to make up any shortfall that you believe you will have. 

 

Try  the IRS tool here : https://www.irs.gov/individuals/tax-withholding-estimator