The Department of Treasury's Bureau of the Fiscal Service (BFS) issues IRS tax refunds and Congress authorizes BFS to conduct the Treasury Offset Program (TOP). Through the TOP program, BFS may reduce your refund (overpayment) and offset it to pay:
- Past-due child support;
- Federal agency nontax debts;
- State income tax obligations; or
- Certain unemployment compensation debts owed to a state (generally, these are debts for (1) compensation paid due to fraud, or (2) contributions owing to a state fund that weren't paid).
https://www.irs.gov/taxtopics/tc203
