Who can withhold your taxes if you owe money?

This answer will depend on what type of money is owed and to who. If you are in the FMS offset refund tax program for any legal government debts it is possible for the FMS to get a part of or your entire refund amount.

The Department of Treasury's Financial Management Service (FMS), which issues IRS tax refunds, has been authorized by Congress to conduct the Treasury Offset Program. Through this program, your refund or overpayment may be reduced by FMS and offset to pay any past due child support, Federal agency non tax debts, or state income tax obligations.

Go to www.irs.gov and use the search box for Topic 203 - Failure to Pay Child Support, Federal Non Tax and State Income Tax Obligations

http://www.irs.gov/taxtopics/tc203.html

For additional information, FMS can be reached at 800-304-3107.