What the term means
Injured spouse is a federal tax-refund term, not a statement about physical injury. The “injury” is the loss of the requesting spouse's potential share of a joint overpayment because Treasury applied the refund to a separate debt of the other spouse.
What Form 8379 does
Form 8379 provides the tax year, joint-return information, eligibility questions, and an allocation of income, deductions, credits, taxes, withholding, and payments between the spouses. The IRS uses the form and applicable law to calculate whether any part of the joint overpayment should be returned to the injured spouse.
What it does not do
It does not cancel the other spouse's debt, decide whether the debt is correct, guarantee a refund, or relieve either spouse from joint tax liability. The creditor agency handles the underlying debt dispute. Form 8857, not Form 8379, is the principal form for innocent spouse and related liability relief.
Community property can change the allocation
When a spouse lived in a community property state during the tax year, the IRS applies that state's rules. The result is not automatically a 50-50 split, and different rules can apply to federal tax debt and nonfederal debts. The current instructions explain that the earned income credit is allocated based on each spouse's earned income.
Example
A married couple files a joint return showing a refund. Treasury offsets the refund to the other spouse's past-due federal student loan. The spouse who does not owe that loan files Form 8379 with income, withholding, payment, and credit allocations. The IRS determines whether that spouse is entitled to part of the overpayment.
Related terms
- Refund offset: reduction of a federal payment to collect a qualifying past-due debt.
- Innocent spouse relief: relief from responsibility for joint tax, interest, or penalties.
- Joint overpayment: payments and refundable credits exceeding tax on a joint return before offsets.
- Treasury Offset Program: the Bureau of the Fiscal Service program that offsets eligible federal payments for referred debts.