If your Schedule K-1 (Form 1065) references Section 751 hot assets and points you to Box 20, the code you actually want is AB, not Z. Code Z in Box 20 carries Section 199A information for the qualified business income deduction; Section 751 gain or loss from the sale of a partnership interest is reported under Code AB with an accompanying statement that breaks the numbers down.1Internal Revenue Service. Instructions for Schedule K-1 (Form 1065) The K-1 Box 20 Code Z / Section 751 mix-up is common, likely a holdover from older forms before the IRS expanded Box 20. Once you’re looking at the right line, the work is the same: split the gain into an ordinary piece and a capital piece, then report each on its own form.
Why Part of the Gain Is Ordinary Income
Selling a partnership interest normally produces capital gain or loss under Section 741.2Office of the Law Revision Counsel. 26 USC 741 – Recognition and Character of Gain or Loss on Sale or Exchange Section 751 pulls a piece of that gain back to ordinary rates to keep partners from converting things like unbilled fees or depreciation recapture into preferential-rate capital gain by selling their interest instead of waiting for the partnership to collect or dispose of those assets directly.
The statute calls out two categories of hot assets: unrealized receivables (rights to payment for services performed or goods delivered that haven’t been included in partnership income yet, plus depreciation recapture on equipment and real property improvements) and inventory items (property held for sale to customers, plus any partnership property that would produce ordinary income rather than capital gain if the partnership sold it).3Office of the Law Revision Counsel. 26 USC 751 – Unrealized Receivables and Inventory Items For a straight sale of a partnership interest, inventory triggers ordinary treatment whether or not it has appreciated substantially; the “substantially appreciated” test still applies to certain disproportionate distributions under 751(b), but not here.
The partnership is supposed to tell you your share on the K-1 and in an attached statement. That statement is what you’ll work from.
Splitting the Gain
You cannot enter one lump sum on your return. You need three numbers: total gain, the Section 751 ordinary piece, and the capital piece that remains.4Internal Revenue Service. LB&I Transaction Unit – Sale of a Partnership Interest
Total Gain or Loss
Start with sales proceeds minus your outside basis in the partnership interest at the time of the sale. Outside basis generally equals your tax capital account plus your share of partnership liabilities, adjusted for contributions, distributions, and allocations of income and loss over the years. Your final K-1 and prior K-1s should give you what you need. Reconstructing basis for a long-held interest sometimes means digging back to original records.
The Ordinary Piece
The Section 751 amount on the K-1 statement is the ordinary income (or loss) you would have been allocated if the partnership had sold all its hot assets at fair market value immediately before you transferred your interest. It’s taxed at your regular income tax rates. No preferential treatment, no netting against the capital side.
Say you sold for a $150,000 total gain and the K-1 statement shows $40,000 of Section 751 gain. That $40,000 is ordinary. Full stop.
The Capital Piece
Subtract the ordinary amount from your total gain. What’s left is the capital gain or loss on your interest in the partnership’s non-hot assets — real estate, Section 1231 equipment, goodwill, and the like. In the example above, $150,000 minus $40,000 leaves $110,000 of capital gain, long-term if you held the interest more than a year.
One trap: the ordinary piece can exceed the total gain. If the hot asset gain is $60,000 and your total gain is only $45,000, you report $60,000 of ordinary income and a $15,000 capital loss. You do not net them first. Each piece stands on its own form.
Reporting the Ordinary Piece on Form 4797
The ordinary income goes on Form 4797 (Sales of Business Property), Part II, which handles ordinary gains and losses. In the description column, identify it as the sale of your partnership interest with Section 751 ordinary gain. The amount flows from Form 4797 to Schedule 1 of Form 1040 and into your adjusted gross income with your other ordinary income.
Don’t put it on Schedule E, where partnership ordinary income from operations normally shows up, and don’t put it on Schedule C. This gain came from selling your interest, not from the partnership’s operations, so Form 4797 is the right vehicle.
Reporting the Capital Piece on Form 8949 and Schedule D
The capital piece goes on Form 8949 and carries through to Schedule D.4Internal Revenue Service. LB&I Transaction Unit – Sale of a Partnership Interest List the sale with date acquired, date sold, proceeds, and adjusted basis. The basis you enter needs to reflect the Section 751 adjustment: you’ve already carved out the ordinary piece, and the basis allocated to the capital side should produce the correct capital gain or loss once that carve-out is done.
Part I (short-term) or Part II (long-term) depends on how long you held the interest. Most partners selling after more than a year will land in Part II and get the preferential 0%, 15%, or 20% rates depending on income. The totals flow to Schedule D and then to Form 1040.5Internal Revenue Service. Instructions for Schedule D (Form 1040)
If any of your capital gain is attributable to collectibles held by the partnership or to unrecaptured Section 1250 gain on real property, the K-1 statement should break those out separately. Collectibles gain is taxed at up to 28% and unrecaptured Section 1250 gain at up to 25%, so those sub-categories need to be reported the way the statement presents them.
What the Partnership Owes You: Form 8308
When a Section 751(a) exchange happens, the partnership has to file Form 8308 (Report of a Sale or Exchange of Certain Partnership Interests) as an attachment to its Form 1065 for the year that includes the calendar year of the exchange.6Internal Revenue Service. Instructions for Form 8308 – Report of a Sale or Exchange of Certain Partnership Interests It’s also required to furnish Parts I through III of that form to both the buyer and the seller by January 31 of the following year.
If you sold and haven’t seen a K-1 with a Section 751 breakdown or a copy of Form 8308, chase the partnership. You’re on the hook for splitting and reporting the gain correctly whether the partnership cooperates or not. If it won’t, you may need to estimate the hot asset allocation from the partnership’s most recent balance sheet and whatever asset information you have, and document how you got there.
Documentation to Keep
The IRS expects you to be able to back up the split if it’s questioned. Hold on to:
- The K-1 and its attached statement showing the Section 751 ordinary amount and the capital components.
- Your outside basis calculation: original investment, cumulative income and loss allocations, contributions, distributions, and share of liabilities over the holding period.
- The purchase and sale agreements, showing total sales price, any contingent payments, and the closing date.
- Form 8308 if the partnership sent you one.
If the partnership didn’t give you a detailed breakdown, put together your own statement showing total sales price, outside basis, the Section 751 amount, and the resulting ordinary and capital figures, and attach it to your return. A bare Schedule D entry with no supporting detail for the basis adjustment is where most disputes with the IRS start, and a clean contemporaneous breakdown makes those questions easy to answer.