IRC 751 Hot Assets: Unrealized Receivables, Inventory, and TD 10048 Form 8308 Practitioner Guide

Last reviewed: July 2026

For enrolled agents, CPAs, and tax attorneys handling partnership sales, distributions, and Form 8308 compliance

Section 1: Background -- Why IRC 751 Exists

A partnership interest is a capital asset in the hands of a partner. Absent a specific override rule, a partner who sells their interest would characterize all resulting gain as capital gain, regardless of what that gain actually reflects at the partnership level.

Congress recognized the problem: a partnership's value often derives from ordinary income items sitting inside the entity -- accounts receivable that the cash-method partnership has earned but not yet collected, inventory held primarily for sale to customers, and depreciation that the partnership has taken on business assets (meaning future recapture is embedded in those assets). If a departing partner could convert the value of those ordinary income items into capital gain simply by selling their interest, IRC 751 would have no purpose.

IRC 751 closes that gap. When a partner sells their interest, the statute requires the seller to recognize ordinary income to the extent the gain is attributable to the partnership's "hot assets" -- unrealized receivables and substantially appreciated inventory. The rest of the gain retains its character as capital gain (or loss).

IRC 751 reaches two distinct situations:

• IRC 751(a): The sale or exchange of a partnership interest. The selling partner must break the total gain into an ordinary income component (hot assets) and a capital component (everything else).
• IRC 751(b): Distributions from partnerships. When a distribution changes the partner's proportionate exposure to hot assets versus non-hot assets, a deemed sale occurs at the partnership level that produces ordinary income on the shifted hot asset component.

Practitioners handling partnership buy-sell agreements, liquidating distributions, and interest transfers should confirm the IRC 751 analysis before closing. The TD 10048 final regulations (effective May 20, 2026) significantly revised the mechanics of both IRC 751(a) and IRC 751(b), and the new Form 8308 Part IV creates a formal partnership-level reporting obligation for each sale. Related basis tracking considerations are covered in the S-Corp and Partnership Basis Tracking and Form 7203 Guide.

Section 2: Unrealized Receivables -- the IRC 751(c) Definition

The term "unrealized receivables" sounds narrow -- it conjures a simple accounts receivable balance. In practice, it is one of the broadest concepts in Subchapter K, and it is the source of significant ordinary income exposure for partnerships that hold depreciable property.

Cash-method accounts receivable

For a cash-method partnership, amounts earned for services rendered or goods delivered but not yet received in cash are "unrealized" in the most literal sense: the partnership has earned the income, but has not yet been required to recognize it because the cash has not changed hands. When a partner sells their interest, those receivables have real value -- a buyer will pay for them -- and IRC 751(c) ensures the selling partner recognizes ordinary income on that value rather than capital gain.

A common practical issue: cash-method partnerships frequently carry zero-basis receivables (fully earned but uncollected). On a sale, 100% of the FMV of those receivables flows through as ordinary income to the selling partner. This can be a material surprise in service-business partnership sales where the billing cycle lags the fiscal year-end.

Depreciation recapture (IRC 751(c)(2))

IRC 751(c)(2) is the provision that catches most practitioners off-guard. It expressly includes in the definition of "unrealized receivables" any amount that would be treated as ordinary income if the partnership had sold all of its property at fair market value at the time of the partner's sale or exchange. This captures:

• IRC 1245 recapture: Ordinary income on the gain from sale of depreciable personal property (equipment, vehicles, fixtures) to the extent of prior depreciation deductions.
• IRC 1250 gain: The portion of gain on real property that is treated as ordinary income (or taxed at a higher capital gains rate as "unrecaptured Section 1250 gain") due to prior depreciation.

The implication: a partnership that has taken significant depreciation on equipment, machinery, or real estate carries a potentially large unrealized recapture liability embedded in its assets. When a partner sells their interest, their proportionate share of that embedded recapture is ordinary income under IRC 751(a), even though no actual sale of partnership property has occurred. For a detailed treatment of the recapture rules themselves, see the IRC 1245/1250 Depreciation Recapture and Form 4797 Practitioner Guide.

Other statutory inclusions in IRC 751(c)

IRC 751(c) also captures recapture potential from several other Code provisions, including:

• IRC 1254 (oil, gas, and geothermal recapture on intangible drilling costs)
• IRC 1252 (farm land recapture)
• IRC 1278 (market discount on bonds, to the extent accrued discount would be ordinary income)

The specific classification analysis for a given partnership's assets requires a careful reading of IRC 751(c) and current IRS guidance. Edge cases -- particularly around what constitutes an "unrealized receivable" in the context of hybrid-method partnerships or complex asset portfolios -- should be confirmed against IRC 751(c) and current IRS.gov guidance.

Section 3: Substantially Appreciated Inventory -- the IRC 751(d) Definition and the 120% Test

What counts as an inventory item (IRC 751(d))

Inventory items for IRC 751 purposes are defined broadly under IRC 751(d). They include:

• Stock in trade of the partnership and any other property held primarily for sale to customers in the ordinary course of the partnership's business;
• Property that would properly be included in the partnership's inventory if on hand at the close of the taxable year; and
• Any other partnership property that is not a capital asset under IRC 1221 and is not IRC 1231 property -- in other words, property that would generate ordinary income on sale regardless of holding period.

This third category is a catch-all for ordinary income property that does not fit neatly into traditional inventory concepts. The classification of specific partnership assets as inventory items, capital assets, or IRC 1231 property requires analysis under IRC 751(d) and IRS.gov guidance. Edge cases should not be resolved by assumption.

The 120% substantially appreciated test (IRC 751(b)(3)(A))

Not all inventory triggers IRC 751. Inventory items are "substantially appreciated" -- and therefore hot assets subject to IRC 751(a) -- only if the aggregate fair market value of ALL inventory items exceeds 120% of the aggregate adjusted basis of all inventory items. This is a statutory threshold found at IRC 751(b)(3)(A) and can be stated directly: FMV of all inventory items must exceed 120% of total adjusted basis.

The test is applied on an aggregate basis across all inventory items, not item by item. A partnership with a mix of high-FMV and low-FMV inventory must aggregate the values before applying the 120% threshold.

Practical consequence: if the partnership's inventory is not substantially appreciated (FMV is at or below 120% of basis), the inventory is not a hot asset. Any gain the selling partner realizes that is attributable to that inventory is capital gain, not ordinary income. This is a material distinction in industries where inventory turns frequently or where the basis is kept current.

Contrast with unrealized receivables

There is no substantially appreciated test for unrealized receivables. All unrealized receivables -- regardless of their value relative to basis -- are hot assets under IRC 751(c). A single dollar of embedded IRC 1245 recapture is an unrealized receivable. The 120% threshold applies only to inventory items.

Section 4: IRC 751(a) -- Sale or Exchange of a Partnership Interest

When a partner sells or exchanges their partnership interest, the transaction is characterized at two levels: the interest itself (generally a capital asset) and the look-through to the underlying partnership property for purposes of the hot asset computation.

The general rule

Under IRC 741, the sale of a partnership interest produces capital gain or loss. IRC 751(a) overrides this for the hot asset component: to the extent the gain or loss is attributable to unrealized receivables or substantially appreciated inventory held by the partnership, the character is ordinary income or ordinary loss rather than capital.

The look-through mechanics

The selling partner (with information from the partnership) computes the IRC 751(a) ordinary income component using a look-through approach:

1. Determine the fair market value of all of the partnership's unrealized receivables and substantially appreciated inventory items.
2. Compare that aggregate FMV to the partnership's aggregate adjusted basis in those same assets.
3. Determine the selling partner's allocable share of the difference (FMV minus basis) based on their share of partnership profit, loss, or as otherwise provided under the partnership agreement and the regulations.
4. Recognize that allocable share as ordinary income (IRC 751(a)).
5. The remaining gain on the sale of the partnership interest (total gain minus the IRC 751(a) ordinary income component) is capital gain (or IRC 1231 gain as applicable).

TD 10048 revised the specific computation mechanics, including disaggregation rules that determine how to calculate the 751 amount at the asset level for each selling partner. The agreed-upon valuation and allocation mechanics under the final regulations should be confirmed in TD 10048 and current IRS.gov guidance -- practitioners should not rely on pre-TD 10048 computation approaches for sales on or after January 1, 2025.

Why the partnership's information is essential

The selling partner cannot complete the IRC 751(a) computation without knowing the partnership's adjusted basis and FMV for each hot asset category. This information asymmetry is precisely why TD 10048 added Form 8308 Part IV: the partnership performs the computation and provides the result to both the transferor (who needs it for their own return) and the transferee (who may need it for future basis computations). The selling partner should not file their return until they have received the partnership's Form 8308 Part IV figures.

Reporting

The selling partner reports IRC 751(a) ordinary income on their individual or entity return. The partnership reports it on Form 8308 (including new Part IV per TD 10048). Confirm the specific line-by-line reporting mechanics in the current Form 8308 instructions and in TD 10048.

Section 5: IRC 751(b) -- Distributions and the Deemed Sale Rules

IRC 751(b) addresses a different pathway by which a partner might escape ordinary income recognition: taking a distribution in kind rather than selling their interest. Without IRC 751(b), a partner could receive appreciated non-ordinary-income property in a distribution, take capital gain on the subsequent sale of that property, and leave the ordinary income embedded in the partnership's receivables and inventory behind for the remaining partners.

The triggering rule

IRC 751(b) applies when a partnership distribution results in the distributing partner receiving more than their proportionate share of non-IRC-751 assets (capital and IRC 1231 property), or less than their proportionate share of IRC 751 assets (hot assets). In either case, the distribution is treated as if a deemed sale or exchange occurred between the partner and the partnership with respect to the amount of the imbalance. That deemed exchange produces ordinary income on the hot asset component.

The prior law problem

The pre-TD 10048 IRC 751(b) regulations, in place since 1956, required a complex layered analysis that was widely regarded as unworkable in practice. Partnerships were often required to treat distributions as involving multiple hypothetical exchanges, with basis consequences that were difficult to track and nearly impossible to compute correctly in non-pro-rata situations.

TD 10048 and the agreed-value method

TD 10048 (effective May 20, 2026, applicable to distributions on or after January 1, 2025) revised the IRC 751(b) regulations and introduced a simplified "agreed-value method" as an alternative computational approach. Under this method, the partnership and the affected partners may agree on the FMVs of the hot assets and non-hot assets, streamlining the deemed-sale computation. The specifics of the agreed-value method -- including how agreement is documented, the scope of its availability, and how the resulting ordinary income and basis adjustments are calculated -- are set out in TD 10048 and should be confirmed in the final regulations and current IRS.gov guidance. The prior layering approach is displaced for transactions on or after January 1, 2025.

Common situations that trigger IRC 751(b)

• Liquidating distributions with retained receivables: A liquidated partner receives cash, but the partnership retains its accounts receivable and depreciable equipment. The exiting partner receives more than their proportionate share of cash (a non-751 asset) while the remaining partners absorb the hot assets.
• Non-pro-rata property distributions: Some partners receive capital assets (land, securities) while others receive ordinary income property (inventory), shifting each partner's proportionate hot-asset exposure.
• Buyout structures: Distributions in connection with a partnership buyout may intentionally or inadvertently reallocate hot assets among continuing and exiting partners, triggering IRC 751(b) analysis.

IRC 751(b) analysis is among the most fact-intensive computations in partnership taxation. All computation mechanics for distributions on or after January 1, 2025 should be confirmed against TD 10048 and current IRS.gov guidance.

Section 6: Form 8308 and TD 10048 Compliance -- What Partnerships Must Do Now

Prior law (pre-TD 10048)

Before TD 10048, Form 8308 served a basic reporting function: partnerships were required to file it whenever a partner sold or exchanged a partnership interest that included IRC 751 assets, notifying the IRS of the transaction. The form required general information about the parties and the transfer, but did not require the partnership to compute or separately state the IRC 751(a) ordinary income component for each selling partner.

New Part IV (TD 10048)

TD 10048 added a new Part IV to Form 8308. Under Part IV, the partnership must:

• Separately compute the IRC 751(a) ordinary income or loss attributable to the sale of the partnership interest for each selling partner;
• State that amount on Form 8308 Part IV for each transferor; and
• Furnish a completed copy of Form 8308 (including Part IV) to both the transferor and the transferee.

This is a new substantive compliance obligation, not merely a procedural update. The partnership must now do the IRC 751(a) hot asset computation -- which previously many partnerships left to the selling partner or their advisors -- and report the result on an information return filed with the IRS. Confirm all Part IV computation requirements in the current Form 8308 instructions and in TD 10048.

Filing and furnishing deadline

The partnership must furnish Form 8308 (with Part IV) to both the transferor and the transferee no later than the due date, including extensions, of the partnership's Schedule K-1 for the tax year in which the sale occurred. For calendar-year partnerships, this is generally by February 15 of the year following the sale, but may be extended if the K-1 deadline is extended. Confirm the specific deadline for each transaction in TD 10048 and the current Form 8308 instructions at IRS.gov.

Information return penalties

Partnerships that fail to comply with the Form 8308 Part IV requirements face two distinct penalty exposures:

• IRC 6721: Penalty for failure to file a correct information return (i.e., failure to file Form 8308, including Part IV, with the IRS).
• IRC 6722: Penalty for failure to furnish a correct payee statement (i.e., failure to furnish Form 8308, including Part IV, to the transferor and/or transferee).

Penalty amounts under IRC 6721 and IRC 6722 are subject to annual inflation adjustment. Do not rely on any stated dollar amount in practitioner guides or prior-year publications; confirm current penalty amounts at IRS.gov and in current IRS guidance. Note that these penalties operate alongside the existing IRC 6050K penalty framework specifically applicable to IRC 751(a) transactions; TD 10048 clarified the interaction between the two penalty regimes, and practitioners should confirm the current scope of each in the final regulations.

Action items for partnerships

• Any partnership that experienced a sale or exchange of a partnership interest on or after January 1, 2025 (the TD 10048 applicability date) must implement Form 8308 Part IV reporting.
• Partnerships should audit their bookkeeping records to ensure that FMV and adjusted basis data for hot assets (receivables, recapture assets, and inventory) are current and documented.
• Partnerships should consult with qualified counsel to implement a process for computing the IRC 751(a) amount for each selling partner and preparing Form 8308 Part IV in time to meet the furnishing deadline.
• Partnerships that have already had 2025 or 2026 interest sales and have not yet filed or furnished Form 8308 Part IV should act promptly to assess their penalty exposure and cure the deficiency where possible.

Frequently Asked Questions: IRC 751 Hot Assets and TD 10048