A Section 331 liquidation is the default tax treatment when a corporation winds down and hands its remaining assets to shareholders in exchange for their stock: each shareholder recognizes capital gain or loss on the exchange, and the corporation separately recognizes gain or loss on every asset it distributes. The result is a two-level tax, and both sides report the transaction independently to the IRS, so the numbers have to line up.
Who Section 331 Applies To
Section 331 governs any shareholder who is not a parent corporation receiving distributions from an 80%-or-more owned subsidiary under Section 332. Individuals, trusts, partnerships, and corporations that own less than 80% of the liquidating company all fall under Section 331. Parent corporations liquidating a controlled subsidiary are the boundary case: they use the tax-free rules of Section 332 instead, and nothing in this article applies to them.
The treatment hinges on the corporation formally adopting a plan of complete liquidation before or concurrent with making distributions. Section 331 overrides Section 301, so the distributions are treated as full payment for surrendered shares rather than as ordinary or qualified dividends. Without a formal plan, the IRS can recharacterize the payments as dividends and the capital gain treatment disappears.
How Shareholders Calculate Gain or Loss
The calculation is a stock sale in substance. Subtract your adjusted basis in the stock from the fair market value of everything you receive, and the difference is your capital gain or loss.
Your amount realized equals the fair market value of all assets distributed to you, reduced by any corporate liabilities you assume as part of the liquidation. Your adjusted basis is what you originally paid for the stock, plus or minus any adjustments during your holding period. Because non-cash assets drive both sides of the equation, appraisals matter. The FMV figure the corporation uses to compute its gain under Section 336 is the same figure you use to compute your amount realized, and your basis in the property going forward.
Short-Term Versus Long-Term
Holding period controls the rate. Stock held for more than one year produces long-term capital gain or loss, taxed at preferential rates of 0%, 15%, or 20% depending on taxable income. Stock held for one year or less produces short-term gain or loss, taxed at ordinary rates that can reach 37%.
If the exchange produces a capital loss, it offsets other capital gains for the year. Excess net capital losses can be deducted against ordinary income up to $3,000 ($1,500 if married filing separately), with the remainder carried forward.
The 3.8% Net Investment Income Tax
Higher-income shareholders pick up an additional 3.8% surtax under Section 1411. It applies to net investment income once modified adjusted gross income exceeds $200,000 for single filers, $250,000 for married filing jointly, or $125,000 for married filing separately. Capital gain from a Section 331 liquidation counts as net investment income, and a large distribution can push a shareholder over the threshold in a single year even if their income normally sits well below it.
Basis in the Property You Receive
Under Section 334, property received in a Section 331 liquidation takes a basis equal to its fair market value on the distribution date. If the corporation’s basis in the asset was lower, you effectively receive a stepped-up basis. That FMV figure becomes your basis for depreciation deductions on the property and for measuring gain or loss if you later sell it.
What the Corporation Owes
Section 336 treats the corporation as if it sold every distributed asset to the shareholder at fair market value. Appreciated real estate, equipment, inventory, and other property produce corporate-level gain measured by the difference between FMV and the corporation’s adjusted basis. That gain is reported on the corporation’s final return and taxed at the corporate rate before the remaining value reaches shareholders.
This is the mechanical source of the double tax: the corporation pays on its appreciation, which shrinks the pool available for distribution, and then shareholders pay capital gains tax on what they actually receive against their stock basis.
When property has declined in value, the corporation can generally recognize the loss, but Section 336(d) blocks it in two situations.
Loss Disallowance Under Section 336(d)
Losses are disallowed on distributions to a related person, meaning someone who owns more than 50% of the corporation’s stock under the Section 267 relationship rules, if either the distribution is not pro rata among all shareholders or the distributed property is disqualified property. Disqualified property is anything the corporation received through a Section 351 transfer or as a capital contribution in the five years before the distribution date.
Section 336(d)(2) adds a second restriction. Even where a loss is otherwise allowed, the corporation must reduce the property’s basis for any loss built in at the time the corporation acquired the property, if the property was contributed as part of a plan whose principal purpose was to generate a deductible loss in the liquidation. Property acquired within two years before the plan of liquidation was adopted is presumed to be part of such a plan unless the corporation can prove otherwise. The basis reduction equals the amount by which adjusted basis exceeded FMV when the corporation acquired the property, stripping out the pre-existing built-in loss.
Practical result: if a majority shareholder contributed depreciated property in the years leading up to a liquidation, the corporation almost certainly cannot deduct that loss.
S Corporation Liquidations
S corporations use the same Sections 331 and 336 framework, with one important difference. When an S corporation recognizes gain on distributing appreciated assets, that gain passes through to the shareholders and increases their stock basis before the liquidating exchange is computed. The higher basis reduces or eliminates the second layer of tax, collapsing what would be a double hit at a C corporation into roughly a single level of tax.
The Built-In Gains Tax
An S corporation that converted from C corporation status carries a five-year exposure under Section 1374. If the corporation liquidates within the recognition period following its S election, net built-in gain recognized during that window is taxed at the corporate rate on top of the passthrough. The tax reaches only the appreciation that existed at the time of the S election, not gains that accrued afterward. Liquidating a recently converted S corporation therefore reintroduces the double tax on pre-conversion appreciation that the election was meant to avoid.
Multi-Year Distributions and Installment Obligations
Liquidations often stretch across more than one tax year. When distributions come in installments, shareholders apply stock basis against each distribution as it arrives. Every payment is a return of basis first, and gain is recognized only after basis has been fully recovered. If total distributions ultimately fall short of basis, the loss is recognized in the year the final distribution is received and the liquidation is complete.
When the corporation distributes installment obligations it holds from prior asset sales, Section 453(h) lets qualifying shareholders treat the actual payments received on those obligations, rather than the obligations themselves, as payment for the stock. The gain is spread across the collection period instead of hitting all at once. The shareholder is treated as if they received the installment note directly from the buyer in exchange for the surrendered shares.
Required Tax Filings
Both sides of the transaction have specific reporting obligations, and mismatched or missing forms invite scrutiny even when the underlying liquidation is sound.
Corporation Filings
The corporation files Form 966 (Corporate Dissolution or Liquidation) within 30 days after adopting its plan of liquidation. There is no express statutory penalty for failing to file, and courts have held that the failure does not by itself defeat Section 331 treatment. Skipping the form still invites unnecessary IRS attention and removes documentation supporting the liquidation.
The corporation files Form 1099-DIV for each shareholder receiving $600 or more in liquidating distributions during the tax year. Cash amounts go in Box 9, noncash amounts in Box 10. Copies must reach shareholders by January 31 of the year following the distribution, and those figures are what shareholders use to compute their amount realized.
The corporation’s final income tax return, Form 1120 for a C corporation or Form 1120-S for an S corporation, must be marked as a final return. It reports the gains and losses from the deemed sale of assets under Section 336 along with any other income earned during the final tax year. Keep the plan of liquidation, board resolutions, and independent appraisals for non-cash assets on file, because those documents support the FMV figures that drive every calculation in the transaction.
Shareholder Reporting
Shareholders report the stock exchange on Form 8949 (Sales and Other Dispositions of Capital Assets), with totals flowing to Schedule D. The fair market value of assets received is the amount realized; the adjusted stock basis is the cost basis. Form 8949 separates short-term and long-term transactions, so shares acquired at different times may need to be reported as separate lots with different holding periods and different gain or loss amounts.