2025›Shareholder’s Instructions for Schedule K-1 (Form 1120-S)›General Instructions
Inconsistent Treatment of Items
Instruction 1120-S (Schedule K-1) — Shareholder's Instructions for Schedule K-1 (Form 1120-S), Shareholder's Share of Income, Deductions, Credits, etc. · 2026-10-03 edition · updated 2026-10-04 · United States
Generally, you must report corporate items shown on your Schedule K-1 (and any attached statements) the same way that the corporation treated the items on its return.
If the treatment on your original or amended return is inconsistent with the corporation’s treatment, or if the corporation hasn’t filed a return, file Form 8082, Notice of Inconsistent Treatment or Administrative Adjustment Request (AAR), with your original or amended return to identify and explain any inconsistency (or to note that a corporate return hasn’t been filed).
If you are required to file Form 8082 but don’t do so, you may be subject to the accuracy-related penalty. This penalty is in addition to any tax that results from making your amount or treatment of the item consistent with that shown on the corporation’s return. Any deficiency that results from making the amounts consistent may be assessed immediately.
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