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Form 8379: Injured Spouse Allocation
IRS Form 8379 is Injured Spouse Allocation, which helps an injured spouse claim their share of a joint tax overpayment. File this form within 3 years from the due date of the original return.
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IRS Form 8379 - Injured Spouse Allocation
IRS Form 8379 is Injured Spouse Allocation, which helps an injured spouse claim their share of a joint tax overpayment. File this form within 3 years from the due date of the original return.
Risk Radar
Scan points- 1Ensure Column (a) in Part III exactly equals the sum of Columns (b) + (c) for each allocated item.
- 2Filing Form 8379 without completing Part I entirely.
- 3Not ensuring Column (a) equals Columns (b) + (c) in Part III allocation.
- 4Failing to check the box on line 1 of Form 8822 if address change is permanent.
- 5Submitting Form 8379 when a temporary address change occurs without noting it.
Plain English
This form allows one spouse to claim that they are owed money because the IRS applied their portion of a tax refund toward debts only the other spouse owes. By filing Form 8379, you establish how much of the overpayment belongs to you versus your spouse. This helps ensure you receive your rightful share of the refunded taxes.
Submission Date
- Filing date: 2024-11-27 22:10:31
- Preparation window: collect IDs, supporting records, and signatures in advance.
- Final review: verify names, dates, and required fields before submission.
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What this form is for
- Use this form when one spouse (the injured spouse) files it on a jointly filed return because the joint overpayment is applied (offset) to the other spouse's past-due obligation.
- Do not use Form 8379 if you did not file a joint return, as you are not an injured spouse.
- Check Form 1040-X instead when amending your original return to claim a joint refund.
Form selector
Use this form or another form?
Joint overpayment offset against Federal tax
The IRS used the joint overpayment to pay a past-due federal tax obligation.
✓ Check line 3 on Form 8379.
Address change is permanent
If the address change is permanent, you must submit Form 8822 along with Form 8379.
✓ Confirm instructions regarding permanent vs. temporary changes.
Filing separately (not with joint return)
When filing alone, attach copies of all Forms W-2 and W-2G for both spouses to Form 8379.
✓ Ensure all required attachments are included when filing individually.
Deadline or filing window
Filing begins when a spouse becomes aware that their share is being offset. The deadline is 3 years from the original return's due date or 2 years from the payment date, whichever comes later. This period can be extended under certain conditions listed in section 6511.
Checklist
What you need before filling it out
Purpose of Form
Joint overpayment applied (or expected to be) to spouse's past-due obligation · Instructions p.1
Filer Category
One spouse (the injured spouse) · Instructions p.1 / Form p.1
Deadline
Within 3 years from the due date of the original return OR within 2 years from the tax payment date, whichever is later · Instructions p.1
Line 9 (Refundable credits)
American opportunity credit, Credit for federal tax paid on fuels, Refundable prior year minimum tax, Premium tax credit · Instructions p.3
Address Change Type
Temporary address change · Instructions p.3
QBI Allocation Rule
IRS generally uses information from jointly filed Form 1040 or 1040-SR · Instructions p.1
Before you submit
- 1Verify the tax year entered on line 1 of Form 8379 matches the return being filed.
- 2Confirm you answered 'Yes' to question 2 (Did or will you file a joint return?).
- 3Ensure you confirmed that the IRS used the joint overpayment for one or more legally enforceable past-due debt(s) owed only by your spouse (Question 3).
- 4If filing with the joint return, confirm Form 8379 is attached in sequence order.
- 5If filing separately, attach copies of all Forms W-2 and W-2G for both spouses to Form 8379.
- 6If filing separately, ensure you include any Forms 1099 showing federal income tax withholding with Form 8379.
- 7If your address change is permanent, confirm you are submitting Form 8822 along with Form 8379.
How to file this form
- 1Complete Part I of IRS Form 8379 by entering the tax year and answering questions regarding joint filing and overpayment application.
- 2Determine if you are filing with your joint return (attach in sequence order) or filing separately, then gather supporting documents accordingly.
- 3If filing with a joint return, enter “Injured Spouse” in the upper left corner of page 1 of the joint return.
- 4Mail Form 8379 to the correct IRS service center based on your state (referencing the chart provided in the instructions).
- 5Keep a copy of the completed and filed Form 8379 for your records.
Known limitations
- 1If a debt owed is not federal tax, state income tax, state unemployment compensation, child support, spousal support, or federal nontax debt (such as a student loan), one must contact the Bureau of the Fiscal Service to determine if an offset will occur.
- 2If filing Form 8379 when no past-due obligation exists will delay the refund.
- 3For community property states, special rules apply to the calculation of the injured spouse refund.
Field map
Compact field-by-field guide
General Info
2 items
Full legal name and taxpayer identification number (SSN or EIN).
Current mailing address.
Details
2 items
Complete all applicable sections of this form according to the official IRS instructions.
Enter the relevant dollar amount if this form involves tax calculation.
Certification
1 items
Read and acknowledge any certifications required by this form.
Signatures
1 items
Sign and date. Unsigned forms cannot be processed.
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Fillable formOpen in Editor->The current edition is Revision November 2024, which applies to tax years beginning in 2024 or later; the instructions direct users to IRS.gov/Form8379 for the latest information.
What changed or needs a fresh check
- Edition date — confirm the revision date reads November 2024.
- Form number — confirm the form is IRS Form 8379 (Rev. November 2023) for tax years beginning in 2023 or later.
- Mailing address/Filing location — verify where to mail based on your state using the chart provided in the instructions.
- Signature — confirm both spouses sign Form 8822 if filing together, unless you are establishing a separate residence.
Quick Facts
Downloads
After you file
- 1Keep a copy of the filed Form 8379.
- 2If filing with an amended joint return (Form 1040-X), that is only necessary if amending the original return to claim a joint refund.
- 3After filing, processing time is about 8 weeks, though errors can increase this time.
- 4If your last return was a joint return, your spouse must also sign Form 8822 unless the injured spouse checks the box on line 1 of Form 8822 to establish a separate residence.
Sources
- SRCInstructions p.1 — Form 8379 is used when the joint overpayment was (or is expected to be) applied (offset) to a past-due obligation of the other spouse.
- SRCInstructions p.1 — The filing deadline is within 3 years from the due date of the original return (including extensions) or within 2 years from the date you paid the tax that was later offset, whichever is later.
- SRCInstructions p.1 — If both spouses have qualified business income (QBI), the IRS generally uses information reported with the jointly filed Form 1040 or 1040-SR to allocate the QBI deduction as a percentage of each spouse’s QBI.
- SRCInstructions p.2 — Line 3 requires checking if the joint overpayment was used to pay legally enforceable past-due debt(s) owed only by your spouse (including Federal tax, State income tax, etc.).
- SRCInstructions p.2 — If living in a community property state, you must enter that state on line 5 of Form 8379.
- SRCForm p.1 — The form is titled Injured Spouse Allocation and the current revision date is November 2023 (for use with the instructions).
- SRCInstructions p.3 — Part III requires an allocation to be made as if each spouse filed a separate tax return instead of a joint return.
- SRCInstructions p.1 — The form must be filed by one spouse (the injured spouse) on a jointly filed tax return.
Common confusion points
Should I file this form even if both spouses have qualified business income (QBI)?
The IRS generally uses information from the jointly filed Form 1040 or 1040-SR to allocate the QBI deduction as a percentage of each spouse’s QBI.
→ Check line 3 on Form 8379 and confirm that joint overpayment was applied to one spouse's past-due obligation.
Do I need to file this form if my debt is only state tax?
Yes, state income tax is listed as a legally enforceable past-due debt subject to offset.
→ Confirm the specific type of state debt on line 3 of Form 8379.
When should I file Form 8379?
File it when you become aware that all or part of your share of an overpayment was, or is expected to be, applied (offset) against your spouse's past-due obligations.
→ Check the filing deadline rules: within 3 years from the due date of the original return (including extensions) OR within 2 years from the date you paid the tax that was later offset, whichever is later.
What if we live in a community property state?
Special rules apply to the calculation of the injured spouse refund.
→ Enter all community property states where you resided and intended to establish a permanent home on line 5.
Do I need to file Form 8379 separately or with my joint return?
You can file it with your joint return, an amended joint return (Form 1040-X), or afterwards by itself.
→ If you are not amending the original return, filing it alone is sufficient.
What if we have a foreign address?
Enter the information in this specific order: number and street; city, province, county, or state; and country.
→ Ensure the country name is not abbreviated when listing your address.
Workflow map
Related forms and next steps
Before
Current
After
Often used with
⚠ If something goes wrong
- Form 1040-X (when amending the original return to claim a joint refund)
Questions about IRS Form 8379
What is IRS Form 8379 used for?
This form allows one spouse to claim that they are owed money because the IRS applied their portion of a tax refund toward debts only the other spouse owes. By filing Form 8379, you establish how much of the overpayment belongs to you versus your spouse. This helps ensure you receive your rightful share of the refunded taxes.
Who must file IRS Form 8379?
An injured spouse must file IRS Form 8379 when they become aware that all or part of their share of an overpayment was, or is expected to be, applied (offset) against their spouse's legally enforceable past-due obligations.
What information does IRS Form 8379 require?
Part I requires entering the tax year and answering questions about filing status and debt application. Part III collects specific financial details, such as amounts reported on Form 1040 or 1040-SR for various items like income and credits.
When is IRS Form 8379 due?
The form must be filed within 3 years from the due date of the original return (including extensions) or within 2 years from the date the tax was paid, whichever is later. Certain circumstances described in section 6511 may extend this period.
Where do I file IRS Form 8379?
Form 8379 can be filed with a joint return or amended joint return (Form 1040-X), or it can be mailed by itself. The location to mail the form depends on where the filer is located, as determined by a chart referenced in the instructions.
How do I complete IRS Form 8379?
First, complete Part I by entering the tax year and answering the questions regarding joint filing and debt application. Next, complete Part III by allocating amounts from items on the joint return into columns (a), (b), or (c). Finally, if filing alone, complete Part IV with your signature and date.
What happens if IRS Form 8379 is filed incorrectly?
If Form 8379 is filed incorrectly, processing errors can increase the time needed for the refund, and failing to file it within the required window may mean forfeiting your portion of the offset.
Should I file this form even if both spouses have qualified business income (QBI)?
The IRS generally uses information from the jointly filed Form 1040 or 1040-SR to allocate the QBI deduction as a percentage of each spouse’s QBI. Check line 3 on Form 8379 and confirm that joint overpayment was applied to one spouse's past-due obligation.
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