Form 8082 is the IRS notice you attach to your return when you report an item from a partnership, S corporation, estate, trust or REMIC differently from how the entity reported it on your Schedule K-1, K-3 or similar statement. You also use it if your K-1 hasn't arrived by your filing deadline and you're reporting estimates. A partnership representative uses the same form to file an administrative adjustment request (AAR).
Everything below comes from the IRS Instructions for Form 8082 (Rev. October 2025) and the form itself, as of October 2026.
The consistency rule behind it
Partners, S corporation shareholders, beneficiaries of estates and trusts, owners of foreign trusts and REMIC residual interest holders must generally report items the same way the entity reported them to the IRS. If you think the entity got something wrong, you can't just quietly report your own number. Form 8082 is how you disagree in the open.
The three jobs it does
| Situation | Who files | What it does |
|---|---|---|
| You disagree with an amount or treatment on your K-1, K-3, Schedule Q, Form 8986 or foreign trust statement | The partner, shareholder or beneficiary | Notice of inconsistent treatment |
| You didn't receive the K-1, K-3, Schedule Q or foreign trust statement by your filing date, including extensions | The partner, shareholder or beneficiary | Tells the IRS you're using estimates |
| A BBA partnership wants to correct a return it already filed | The partnership representative, or its designated individual if the PR is an entity | Administrative adjustment request (AAR) |
The instructions add one more case: if the entity was required to give you a Schedule K-3 and didn't, Form 8082 is how you tell the IRS.
When you can't use it
- You're a partner in an audited BBA partnership and the adjustments were finally determined on Form 8986: you're bound by them.
- The partnership has already received a notice of administrative proceeding: you can't file a notice of inconsistent treatment on its items.
- You want to change S corporation items: a shareholder can't request an administrative adjustment and must file an amended return instead, though a shareholder can still give notice of inconsistent treatment.
- You're a partner trying to correct the partnership's own return: only the partnership representative can file an AAR.
How to fill it in
- Part I, line 1: check box (a) if you believe an item wasn't reported correctly, or you haven't received the statement in time.
- Lines 2 to 6: the entity's details, mostly from the K-1, Form 8986, Schedule Q or trust statement.
- Part II: describe each item. In column (b), tick 'Amount of item' if the figure is wrong, 'Treatment of item' if the character is wrong (the instructions' example is a long-term capital loss you think should be ordinary), or both.
- Column (c): the amount as the entity reported it. Enter zero if you never got a statement or you're reporting an item you think was left off.
- Then show your own amount and treatment, and explain why.
If you need more than the four lines in Part II, attach extra Forms 8082.
How to file it
Don't file Form 8082 by itself. As a notice of inconsistent treatment, you complete a single copy, attach it to your tax return and file it with your original return. The insight most people miss is the second use: if a K-1 is late, the form lets you file on time with estimates and flag that you've done so, instead of waiting for the entity.
Three terms you'll meet in the instructions
- Reviewed year: the partnership tax year an adjustment relates to. If an AAR corrects income for 2023, 2023 is the reviewed year.
- Partnership representative (PR): the person who acts for a BBA partnership with the IRS. The partnership and all partners are bound by the PR's actions.
- Designated individual (DI): if the PR is an entity, the partnership must appoint one individual, the DI, to act for it.
AAR timing for partnerships
A pass-through entity can generally file an AAR within 3 years after the later of the date its return for that year was filed or the last day for filing it (not counting extensions), and before a notice of administrative proceeding for that year is mailed. The partners' shares of an AAR go out on Form 8986, summarised on Form 8985, not on an amended K-1.
What changed in the October 2025 revision
- Part I, line 1: the 'AAR', 'TEFRA AAR' and 'ELPs/REMICs' checkboxes were removed.
- Part I, line 2: the 'TEFRA Partnership' checkbox was removed.
- Part II: the column (e) heading was clarified.
All partnerships with tax years beginning after 2017 are BBA partnerships unless they validly elect out, which is why the TEFRA boxes went.
The penalty for skipping it
If you disregard the requirement to file Form 8082 when you report inconsistently, you may face the accuracy-related penalty under section 6662 or the fraud penalty under section 6663, on top of any tax from bringing your return back into line with the entity's.
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The verdict
If your Schedule K-1 looks wrong, ask the entity to correct it first. If it won't, or the K-1 simply hasn't come, attach Form 8082 to your return so the difference is disclosed rather than hidden. International items on a Schedule K-3 follow the same route. For the partnership's own corrections, the representative files the AAR alongside the Form 1065 process.
Frequently asked questions
What is Form 8082 used for?
To notify the IRS that you're reporting an item from a pass-through entity differently from how the entity reported it, that you didn't receive a K-1 in time, or for a partnership representative to file an administrative adjustment request.
Can I file Form 8082 on its own?
No. As a notice of inconsistent treatment, you attach a single copy to your tax return and file it with your original return.
What if I never received my K-1?
Check box (a) on line 1, report your estimated amounts, and enter zero in column (c) for the items you didn't receive.
Can an S corporation shareholder use Form 8082 to fix the S corporation's items?
Only to give notice of inconsistent treatment. A shareholder can't request an administrative adjustment and must file an amended return instead.
What's the penalty for not filing Form 8082?
If you disregard the filing requirement, you may face the accuracy-related penalty under section 6662 or the fraud penalty under section 6663.
