Form 8308 Instructions: Filing, Deadlines, and Penalties

Form 8308 instructions require a partnership to report any sale or exchange of a partnership interest that involves Section 751(a) “hot assets,” attach the completed form to its Form 1065, and furnish copies to both the seller and the buyer. The partnership itself files the form. Individual partners do not.

When Form 8308 Is Required

A partnership must file Form 8308 whenever a partner sells or exchanges all or part of an interest and any portion of the proceeds relates to Section 751(a) property.¹ The size of the hot-asset holding does not matter. If the partnership owns any unrealized receivables or inventory items on the transfer date, the requirement is triggered.

Section 751 property comes in two flavors. Unrealized receivables are rights to payment for goods delivered or services performed that have not yet been included in income under the partnership’s method of accounting, and the category also picks up various recapture items such as depreciation recapture on Section 1245 and Section 1250 property.² Inventory items include property held primarily for sale to customers, plus any partnership property that is neither a capital asset nor Section 1231 property.

Most operating partnerships have accounts receivable or depreciated equipment, so in practice the filing requirement kicks in nearly any time a partner sells an interest.

The partnership’s obligation begins only once it knows about the transfer. The selling partner has a statutory duty to notify the partnership of the exchange, including the names, addresses, and TINs of both parties and the date of the transaction.³ Notice is read broadly: a written statement from the transferor works, and so does learning of the exchange through any other channel while the partnership holds Section 751 property.⁴

Information to Gather Before You Start

Collect the following before opening the form:

Full legal name, address, and TIN for both the transferor and the transferee. Use an SSN for individuals and an EIN for entities.
The exact closing date of the sale or exchange.
Whether each party held the interest as a record holder, a beneficial owner, or both.
Fair market value and adjusted basis of every unrealized receivable and inventory item the partnership holds, needed for the deemed-sale calculation in Part IV.

Getting the buyer’s TIN is the step that most often stalls a filing. If the transferee is a third party the partnership has no relationship with, request the number through the seller or the closing intermediary well before the Form 1065 deadline.

Completing the Form Part by Part

Form 8308 has four parts. The first three identify the partnership and the transaction; Part IV runs the numbers.

Part I: Partnership Information

Enter the partnership’s legal name, address, and nine-digit EIN. Match the EIN exactly to the one used on Form 1065.

Part II: Transferor and Transferee Information

Enter the name, address, and TIN for both the seller and the buyer, along with the date of the exchange. Check the boxes indicating whether each party is a record holder, a beneficial owner, or both.⁵

Part III: Type of Partnership Interest Transferred

Indicate whether the transferred interest is a general or limited partnership interest, and report the percentage of capital and profits interests that changed hands. If the partnership tracks ownership in units rather than percentages, report the number of units transferred instead.

Part IV: Deemed Sale Gain or Loss

Part IV computes the ordinary income or loss attributable to hot assets, plus any collectibles gain and unrecaptured Section 1250 gain. The method is a hypothetical deemed sale: the partnership calculates gain or loss as if it had sold all of its property for fair market value in a fully taxable cash transaction immediately before the interest transfer.⁶ The entity-level number goes in column (a). Multiply by the transferor’s percentage interest (or allocate by units) to get the partner-level amount in column (c).

Three lines make up Part IV:

Line 1: Section 751(a) ordinary gain or loss from hot assets.
Line 2: Section 1(h)(5) collectibles gain, covering the partner’s share of gain on collectibles held by the partnership.
Line 3: Section 1(h)(6) unrecaptured Section 1250 gain, covering the partner’s share of gain from depreciable real property.

The column (c) figure on each line flows to the transferor’s Schedule K-1 (Form 1065), Box 20, using code AB for Section 751(a) gain or loss, code AC for collectibles gain, and code AD for unrecaptured Section 1250 gain.⁷

When and Where to File

Attach the completed Form 8308, all four parts, to the partnership’s Form 1065 for the tax year that includes the last day of the calendar year in which the exchange occurred.⁴ The deadline is the Form 1065 due date, including extensions.

If the partnership finds out about the exchange only after Form 1065 has already been filed, the response depends on what the earlier return did with the Section 751(a) amounts:

If the amounts were reported correctly on the return and the affected K-1s, file Form 8308 separately within 30 days of notification, at the service center where Form 1065 was originally filed.⁶
If the amounts were not reported or were reported incorrectly (non-BBA partnerships), file Form 8308 with an amended Form 1065 and issue corrected K-1s, all within 30 days of notification.

Copies to the Buyer and Seller

The partnership also has to furnish Form 8308 information to both parties, on a two-tier schedule.⁶

Parts I, II, and III go to the transferor and the transferee by the later of January 31 of the year following the exchange or 30 days after the partnership learns of the exchange.³ Part IV calculations do not need to be in that initial delivery.

Part IV information reaches the transferor through the Schedule K-1, using Box 20 codes AB, AC, and AD. That K-1 is due by the Form 1065 filing deadline, including extensions.⁴

Penalties

Form 8308 is an information return, so the standard information-return penalty framework applies. For returns due in calendar year 2026, failure to file a correct Form 8308 with the IRS under Section 6721 costs $60 per return if corrected within 30 days, $130 if corrected after 30 days but by August 1, and $340 if corrected after August 1 or not at all. Intentional disregard runs $680 per return with no annual cap.⁸ Annual caps on the tiered amounts scale with partnership size.

A separate penalty under Section 6722 applies for failing to furnish correct copies to the transferor and transferee, at the same tiered amounts.⁹ For intentional disregard on Form 8308 payee statements, the penalty is the greater of $680 or 5% of the aggregate amount required to be reported correctly, with no annual cap.

Both penalty regimes include a reasonable cause exception. No penalty applies if the partnership can show the failure was due to reasonable cause and not willful neglect. The IRS weighs good-faith efforts, such as documented attempts to obtain missing TINs and prompt correction once errors surface.

1
Internal Revenue Service. About Form 8308
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eCFR. 26 CFR 1.751-1 – Unrealized Receivables and Inventory Items
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Office of the Law Revision Counsel. 26 USC 6050K – Returns Relating to Exchanges of Certain Partnership Interests
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Internal Revenue Service. Instructions for Form 8308
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Internal Revenue Service. Form 8308 – Report of a Sale or Exchange of Certain Partnership Interests
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Internal Revenue Service. Instructions for Form 8308 – Report of a Sale or Exchange of Certain Partnership Interests
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Internal Revenue Service. Partners Instructions for Schedule K-1 Form 1065
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Internal Revenue Service. 20.1.7 Information Return Penalties
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Office of the Law Revision Counsel. 26 USC 6722 – Failure to Furnish Correct Payee Statements