U.S. · Tax forms
K-1 box 11 codes.
Other income and loss items on a partnership K-1, code by code.
Box 11 of a partnership Schedule K-1 (Form 1065) holds income and loss items that do not fit boxes 1 to 10. Codes include A (other portfolio income), C (section 1256 contracts, Form 6781), E (cancellation of debt), K (gambling), and S (non-portfolio capital gain, Schedule D). Pick a code below for the IRS meaning and where it goes.
Look up a box 11 code
Result
Box 11 codes (2025 K-1)
| Code | Meaning | Where it goes (per the IRS instructions) |
|---|---|---|
| A | Other portfolio income (loss) | A statement tells you the kind of income; REMIC amounts go in Schedule E (Form 1040) line 38 |
| B | Involuntary conversions | Form 4684, Part II, line 34, from the partnership’s statement |
| C | Section 1256 contracts and straddles | Form 6781 |
| D | Mining exploration costs recapture | See Pub. 535 as the instructions direct |
| E | Cancellation of debt | Generally included in gross income on Schedule 1 (Form 1040), line 8c; Form 982 may let you exclude it or reduce basis |
| F | Section 743(b) positive income adjustments | Net positive adjustment; the by-asset detail is in box 20, code U |
| I | Gain (loss) from disposition of oil, gas, geothermal or other mineral properties (section 59(e)) | A loss goes in Form 4797 Part I, a gain in Form 4797 Part III |
| J | Recoveries of tax benefit items | Schedule 1 (Form 1040), line 8z, to the extent it reduced your tax in the prior year |
| K | Gambling gains and losses | If not a gambling business: winnings on Schedule 1 line 8b and losses to the extent of winnings on Schedule A line 16. If a gambling business: Schedule E line 28 |
| L | Income, gain or loss from a section 751(b) distribution | Form 4797, Part II, line 10 |
| M | Gain eligible for section 1045 rollover (replacement stock purchased by the partnership) | Schedule D and Form 8949; you may opt out of the partnership’s election |
| N | Gain eligible for section 1045 rollover (replacement stock not purchased by the partnership) | Schedule D and Form 8949; you must buy other QSB stock within 60 days of the sale |
| O | Sale or exchange of QSB stock with section 1202 exclusion | Schedule D and Form 8949, with the section 1202 exclusion |
| P | Gain or loss on disposition of farm recapture property and other section 1252 items | Form 4797, per the partnership’s information |
| Q | Gain or loss on Fannie Mae or Freddie Mac qualified preferred stock | Schedule D, line 5 or 12, if you are not a financial institution |
| R | Specially allocated ordinary gain (loss) | Form 4797, Part II, line 10 |
| S | Non-portfolio capital gain (loss) | Short-term on Schedule D (Form 1040) line 5, long-term on line 12 |
| ZZ | Other | Any other information you need to file your return |
Reading the list
Codes G and H are reserved for future use, and so are T through X. Box 11 is where the unusual items live, so the real action is usually on an attached statement from the partnership. If the K-1 reports a passive loss item, follow the Form 8582 instructions.
Code E: cancellation of debt
The instructions say a cancellation of debt (COD) amount is generally included in gross income on Schedule 1 (Form 1040), line 8c. Under section 108(b)(5) you may elect to apply any excluded portion to reduce the basis of depreciable property, which is done on Form 982. See the 1099-C identifiable event codes page for the matching form when a lender cancels a debt you owe directly.
Worked example
Nina has $2,500 in box 11 code S and a loss of $400 in code K. The $2,500 non-portfolio capital gain is split into short-term and long-term pieces from the partnership’s Schedule D information and goes on Schedule D lines 5 and 12. Because the partnership was not engaged in the business of gambling, her code K items follow the non-business rule: winnings on Schedule 1 line 8b and losses to the extent of winnings on Schedule A line 16. Use the capital gains tax calculator for the tax on the gain.
More form decoders
Other pages in this set: K-1 Box 13 Codes, K-1 Box 14 Code A, K-1 Box 20 Code Z, Form 8949 Column (f) Codes. The 1099-R box 7 lookup and W-2 box 12 lookup cover the same kind of question for those forms.
Sources
- Instructions for Schedule K-1 (Form 1065) (2025): Box 11, Other Income (Loss), codes A through ZZ. Read November 2, 2026.
- Instructions for Form 982: Excluding discharged debt from income (edition shown 12/2021). Read November 2, 2026.
IRS page last reviewed April 30, 2026. Form line numbers are those printed in the 2025 instructions.
Frequently asked questions
What is K-1 box 11?
Box 11 is "Other Income (Loss)" on Schedule K-1 (Form 1065). It reports partnership income and loss items that do not fit the numbered boxes before it, each identified by a code.
What does box 11 code A mean?
Other portfolio income (loss), which is portfolio income other than interest, dividends, royalties and capital gains. The partnership attaches a statement to say what it is.
What is box 11 code C?
Net gain or loss from section 1256 contracts and straddles, reported on Form 6781.
Where do I report box 11 code S?
It is non-portfolio capital gain or loss. Report short-term amounts on Schedule D (Form 1040) line 5 and long-term amounts on line 12.
What does box 11 code E mean for my taxes?
It is your share of cancellation of debt. It is generally included in gross income on Schedule 1 line 8c, but Form 982 may allow you to exclude part and reduce basis instead.
Not tax advice
This page summarizes IRS instructions, mostly written for the people who prepare the form, and is not tax, legal or financial advice. The payer, a CPA or an enrolled agent can confirm what a box or code means for your return. Everything runs in your browser; nothing you enter is sent anywhere.