What Form 8379 is for
You file a joint return and expect a refund. Instead the IRS applies the overpayment to a past-due debt that only your spouse owes, like federal tax, state income tax, state unemployment compensation, child support, spousal support, or a federal nontax debt such as a student loan. Form 8379 asks for your share of that refund back.
The injured spouse is the one who files it. That is you, if you are not legally obligated to pay the debt. Part I walks you through short yes or no questions to see whether you qualify. If any answer sends you to a stop, do not file. Filing when no past-due obligation exists will delay your refund.
Who files Form 8379?
One spouse files it, the one whose share of the joint refund was taken. The text calls that person the injured spouse. You may be one if you filed or will file a joint return, the IRS used or will use the joint overpayment for a legally enforceable past-due debt owed only by your spouse, and you are not legally obligated to pay that amount. Part I asks all of this in order.
If the past-due amount is a federal tax liability that both of you owe, Form 8379 is not the right form. You may qualify for innocent spouse relief instead, and that is claimed on Form 8857. The instructions list what can qualify: your spouse omitted income or claimed false deductions or credits and you had no reason to know, or you are divorced, separated, or no longer living with your spouse, or it would not be fair to hold you liable.
- Federal tax
- State income tax
- State unemployment compensation
- Child support
- Spousal support
- Federal nontax debt, such as a student loan
When do you file Form 8379?
File it when you become aware that all or part of your share of an overpayment was taken, or is expected to be taken, for your spouse's legally enforceable past-due obligations. You must file a Form 8379 for each year this happens and you want your portion refunded. The limit is 3 years from the due date of the original return, including extensions, or 2 years from the date you paid the tax that was later offset, whichever is later. Certain circumstances in section 6511 may extend that period.
Where do you send Form 8379?
Form 8379 gets mailed, and the destination depends on how you send it. Service Center mailing addresses are listed in your tax return instructions. Taxpayer Assistance Centers are not Internal Revenue Service Centers, and you cannot make an appointment at a Service Center to file this form.
- With your joint return: mail both to the Service Center for the area where you live.
- By itself after a paper joint return: the same Service Center where you filed the original.
- By itself after an electronically filed joint return: the Service Center for your area.
- With Form 1040-X or another later return: the Service Center for your area.
How do you fill out Form 8379?
You can file it with your joint return, with an amended joint return on Form 1040-X, or by itself afterwards. Use Form 1040-X only if you are amending your original return to claim a joint refund. Filed with a return, attach it in the order of the attachment sequence number, 104, and write Injured Spouse in the upper left corner of page 1 of the joint return. Filed alone, attach copies of all Forms W-2 and W-2G for both spouses and any Forms 1099 showing federal income tax withholding.
Part III splits the numbers from the joint return between the two of you. Allocate each item as if you had each filed a separate return, so separate wages, self-employment income and expenses, and credits go to the spouse who would have shown them. Items that belong clearly to neither of you, such as a penalty on early withdrawal of savings from a joint bank account, are divided equally. Column (a) must equal columns (b) plus (c). The IRS figures the amount of any refund due the injured spouse.
What if you live in a community property state?
Answer Yes on line 5 and enter the state names. The community property states are Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin. Then skip lines 6 through 9 and go to Part II. Special rules change the math. Overpayments count as joint property, and under state community property laws 50% of a joint overpayment, except the earned income credit, is applied to non-federal tax debts such as child support, student loans, state unemployment compensation debts, or state income tax. State laws differ on federal tax debt. The earned income credit is allocated to each spouse based on each spouse's earned income.
How long does Form 8379 take to process?
Filed with a joint return on paper, processing takes about 14 weeks, or about 11 weeks filed electronically. Filed by itself after the joint return has already been processed, it takes about 8 weeks. Mistakes add time and can bring notices. Do not include a copy of your joint return with a standalone Form 8379, but do enclose the W-2, W-2G, and 1099 copies. An incomplete form slows things down. A temporary address change may delay the refund. A daytime phone number can speed things up, since a phone answer may replace a letter.
Form 8379 line by line
| Line | What goes there |
|---|---|
| 1 | The tax year you are filing this form for. Answer every other question in Part I for that year. |
| 2 | Whether you filed or will file a joint return. If no, stop. You are not an injured spouse. |
| 3 | Whether the IRS used or will use the joint overpayment for a past-due debt owed only by your spouse. |
| 4 | Whether you are legally obligated to pay that past-due amount. If yes, stop and do not file. |
| 5 | Whether you lived in a community property state during that year. If yes, name the states and skip lines 6 through 9. |
| 9 | Whether you claimed or will claim a refundable credit, such as the American opportunity credit or premium tax credit. |
| 10 | Both names and Social Security numbers exactly as shown on the joint return, in the same order, with a check box marking the injured spouse. |
| 11 | Check only if you want the refund issued in both names. Otherwise separate refunds go out to each spouse. |
| 12 | Whether you want the injured spouse refund mailed somewhere other than the address on the joint return, plus that address. |
| 13a | Income from Forms W-2 on the joint return in column (a), then the separate income each spouse earned in columns (b) and (c). |
| 13b | All other income on the joint return, with the type and amount identified, then allocated between the two of you. |
| 15 | The standard deduction or itemized deductions from the joint return. With the standard deduction, each column gets one-half of the basic amount. |
| 19 | Federal income tax withheld on the joint return, then the amount withheld from each spouse's income per Forms W-2, W-2G, and 1099. |
| Part IV | Signature and date. Complete this part only if you are filing Form 8379 by itself and not with your tax return. |
Source: IRS, Form 8379 (Rev. Nov 2023) and Instructions for Form 8379, Injured Spouse Allocation. This page explains the form in plain English. It is not tax advice.