What Happens to Your Final Income Tax Return (Form 1040) Account When You Die
Quick Facts
Form
IRS Form 1040
Deadline
April 15 following death
Who files
Executor or spouse
Step-by-Step Guide
File as "Deceased"
Write "DECEASED" across the top of Form 1040 along with the decedent's name and date of death. Use the same filing status they would have used.
Estimated time: 15 min
Surviving spouse can file jointly
If the decedent was married, the surviving spouse can file a joint return for the year of death. This often results in a lower tax bill than filing separately.
Executor signs the return
The executor or personal representative signs on behalf of the decedent. Write "Filing as personal representative" next to the signature.
Estimated time: 5 min
Claim refund with Form 1310
If a refund is due and you are not the surviving spouse filing jointly, attach Form 1310 (Statement of Person Claiming Refund Due a Deceased Taxpayer).
File state return too
Most states require a final state income tax return as well. Check the state revenue department for specific requirements and deadlines.
Document Now Checklist
- Gather all W-2s, 1099s, and income documents for the year of death
- Note the exact date of death for income cutoff
- Locate prior year tax returns for reference
- Identify the CPA or tax preparer who handled prior returns
- Determine filing status (married filing jointly vs. single)
Last verified: June 2026. Platform policies may change. Verify current procedures directly with Final Income Tax Return (Form 1040). This guide is for informational purposes only and does not constitute legal advice.
Related Guides
Estate Income Tax (Form 1041)
Form 1041 is required if the estate generates more than $600 in gross income during any tax year while it remains open. Income includes interest, dividends, rent, and capital gains earned by estate assets after the date of death.
Estate Tax Return (Form 706)
Even if the estate is below the federal threshold, you may still need to file Form 706 to elect portability — which transfers the unused exemption to the surviving spouse. This election is critical and must be made on a timely filed Form 706.
Step-Up in Basis — The Tax Break Families Miss
This is the most important tax concept for heirs. Do not sell ANY inherited asset before documenting its fair market value at the date of death.
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