Updated September 29, 2026. Quick answer: Box 14 code F is gross farming and fishing income, included in Box 6 and reported separately for the estimated tax penalty, on Schedule E line 42. Code ZZ is a catch-all for other information the fiduciary provides. The instructions also describe several items reported that way.
Code F, gross farming and fishing income
The instructions read here are the 2025 edition of the IRS Instructions for Schedule K-1 (Form 1041) for a Beneficiary Filing Form 1040 or 1040-SR (Catalog Number 11374Z, dated March 13, 2025), the edition served at the IRS standing PDF address when read on September 29, 2026. They are written for the beneficiary; the fiduciary’s own instructions are in the Instructions for Form 1041. The IRS instruction reads: “The amount of farming and fishing income is included in box 6.” “This income is separately stated to help determine if you are subject to a penalty for underpayment of estimated tax.” “Report the amount of gross farming and fishing income on Schedule E (Form 1040), Supplemental Income and Loss, line 42.”
| Code | Form label | Report on (form’s code list) |
|---|---|---|
| F | Gross farm and fishing income | Schedule E, line 42 |
Code ZZ, other information
“If this code is used, the fiduciary will provide you with any additional information you may need to file your return that isn’t shown elsewhere on this Schedule K-1.”
| Code | Form label | Report on (form’s code list) |
|---|---|---|
| ZZ | Other information | See the beneficiary’s instructions |
Other items the Box 14 instructions describe
The closing paragraphs of the Box 14 instructions describe further items the fiduciary may provide. On a partnership interest: “The fiduciary will provide you with any information needed to figure capital gains with respect to a section 1061 partnership interest.” On section 951A income: “Report your section 951A income on Schedule 1 (Form 1040), line 8o, or the comparable line of your income tax return.” On section 965: “Your distributive share of the net amount of section 965(a) inclusion less the corresponding section 965(c) deduction should be reported in box 14, code ZZ.”
Business interest expense
On the section 163(j) limitation the instructions say the fiduciary provides the information in an attachment: “If applicable, the fiduciary will provide you the necessary information to calculate this amount on an attachment to Schedule K-1.”
Common mistakes
- Reading code F as extra income. The amount is already included in Box 6 and is separately stated for the estimated tax penalty test.
- Ignoring an attached statement behind code ZZ. The fiduciary provides the additional information there.
- Assuming code ZZ is one thing. It is a catch-all, so read the attachment.
Related: Schedule K-1 Box 14 Codes C, D, J, K, L, M: Form 3468, Schedule K-1 (Form 1041) Boxes 1 to 5: Income Boxes, and what a K-1 from an estate reports.
Every box and code in one place: the Schedule K-1 (Form 1041) boxes table. What a K-1 from an estate reports overall is on the Schedule K-1 for estates page.
Sources
- IRS, Instructions for Schedule K-1 (Form 1041) for a Beneficiary Filing Form 1040 or 1040-SR (2025): https://www.irs.gov/pub/irs-pdf/i1041sk1.pdf
- IRS, Schedule K-1 (Form 1041) 2025, Beneficiary’s Share of Income, Deductions, Credits, etc., page 2 code list: https://www.irs.gov/pub/irs-pdf/f1041sk1.pdf
Source: the IRS instructions for the beneficiary who receives Schedule K-1 (Form 1041), and the form’s own code list, read at irs.gov on September 29, 2026. General information, not tax advice. Your own facts decide the outcome, and a preparer, the estate’s or trust’s fiduciary or the IRS is the right place to confirm anything consequential.