It's called a Tax Offset. If you owe money because of certain delinquent debts, the IRS or the Department of Treasury's Financial Management Service (FMS), which issues IRS tax refunds, can offset or reduce your federal tax refund or withhold the entire amount to satisfy the debt.
How do you know if your taxes are going to be taken?
The IRS provides a toll-free number which you can call, go through the automated prompts, and see if you have any offsets pending on your social. Their number is (800) 304-3107. Please note, due to federal law, the IRS cannot give out any information related to Federal Tax Debts on this automated line, only offsets from states and other delinquent debts.
You may to contact the IRS to find out why your refund was not subject to an offset this year: (800) 829-1040
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