Ask your employer. If you say on your W-4 that you want extra federal withholding from your paychecks, then likely they will do that for every check. No matter whether they do or not......when you prepare your tax return, if you have had more tax withheld than your tax liability, you will get a refund. If you have not had enough withheld, you will owe the IRS.
https://www.irs.gov/individuals/tax-withholding-estimator
https://www.irs.gov/pub/irs-pdf/fw4.pdf
**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.**
