Request an injured spouse refund with Form 8379

Use the correct spouse-relief process

Form 8379 addresses a joint refund offset caused by a separate debt of the other spouse. Form 8857 addresses responsibility for joint tax, interest, or penalties. Follow every deadline in an IRS, Treasury, state, support, or court notice even while Form 8379 is pending.

1. Confirm that the refund was or may be offset

An injured spouse allocation may apply when you filed, or will file, a joint federal income tax return and the joint overpayment was or is expected to be used for a legally enforceable past-due obligation that belongs only to your spouse. The current form lists federal tax, state income tax, state unemployment compensation debt, child support, spousal support, and federal nontax debt such as a student loan.

A federal tax offset notice may come from the IRS. Other Treasury Offset Program notices commonly come from the Bureau of the Fiscal Service. The notice identifies the amount taken and the agency receiving it. Contact the agency listed on the notice to dispute whether the debt exists or is correct; Form 8379 only asks the IRS to calculate and return the requesting spouse's allocable share of the joint overpayment.

2. Make sure the debt is not your legal obligation

Complete Part I of Form 8379. If you are legally obligated to pay the past-due amount, the form directs you to stop because you are not an injured spouse for that debt. If the federal tax liability is jointly owed, review innocent spouse relief instead of using Form 8379 as a substitute.

The allocation can also depend on whether you made tax payments, had earned income, or claimed refundable credits. Residence in a community property state changes the analysis because the IRS applies that state's community property rules. Do not assume that half of the refund will always be returned.

3. Identify the tax year and protect the filing period

File a separate Form 8379 for each tax year for which you want an injured spouse allocation. Current IRS guidance states that the request generally must be filed within three years from the date the return was filed or two years from the date the tax was paid, whichever is later. If no return was filed, the general period is two years from the payment date. Internal Revenue Code section 6511 can change or extend these periods in particular circumstances. The current IRS web page and section 6511 describe the three-year period by reference to when the return was filed, while the November 2024 printed instructions use the original return's due date, including extensions. Because the official wording differs and special rules apply, do not calculate a final filing date from this guide; confirm it with the IRS or an authorized tax professional.

Use the revision required for the year involved. The current IRS instructions say to use the November 2023 revision of Form 8379 for tax years beginning in 2023 or later until a later revision is issued, and the November 2024 instructions for tax years beginning in 2024 or later. Earlier years may require prior revisions.

4. Choose the correct filing route

With the original joint return: attach Form 8379 in attachment-sequence order. It can be included with an electronically filed return when supported by the filing software.
After the joint return was processed: file Form 8379 separately by mail using the current instructions and the IRS Service Center rules for the original return.
With Form 1040-X: the IRS's February 2026 post-release update says Form 8379 may be filed electronically by attaching it to Form 1040-X even when the taxpayers are not amending the return. Confirm that the software supports this route and follow the current IRS update.

Do not hand-deliver the form to a Taxpayer Assistance Center or treat that office as an IRS Service Center. Mailing destinations can change and depend on how the original return was filed, so use the live IRS instructions rather than copying an old address.

5. Complete the joint-return and allocation sections

Enter both spouses' names and taxpayer identification numbers in the same order shown on the joint return. Mark which spouse is the injured spouse. Part III allocates joint-return items between the spouses, including wages, other income, adjustments, deductions, credits, other taxes, withholding, and payments. Column (a) must equal columns (b) and (c).

Use the joint return, Forms W-2 and W-2G, Forms 1099 showing withholding, estimated payment records, credit worksheets, and the tax-year instructions to support the allocation. Community property rules can override a simple item-by-item approach, so use the instructions for the state involved.

6. Attach the required records and sign when required

When filing Form 8379 by itself, the current instructions require copies of Forms W-2 and W-2G for both spouses and Forms 1099 showing federal income tax withholding. Do not attach a copy of the previously filed joint return; the IRS warns that doing so can delay processing. Complete the signature section when the form is filed by itself.

Keep a complete copy of the form, allocation workpapers, wage and withholding documents, mailing proof or electronic acceptance, the offset notice, and later IRS correspondence. Do not send original records unless the IRS specifically requests them.

7. Track the request without treating estimates as guarantees

The IRS currently estimates about 11 weeks when Form 8379 is filed electronically with a joint return, about 14 weeks when filed with a paper joint return, and about 8 weeks when filed by itself after the joint return has processed. Errors or missing attachments can take longer. These are processing estimates, not approval guarantees.

The IRS calculates the allocable refund. In a community property state, state law affects the division. If the offset notice identifies a debt you do not recognize or an incorrect balance, contact the agency shown on that notice; the Treasury Offset Program does not decide the underlying debt dispute.