Schedule3K-1: Schedule3K-1 (2025)
Wisconsin · Wisconsin DOR · Used for tax years 2025
Wisconsin Schedule 3K-1 reports a partner’s share of a partnership’s income, deductions, credits, and other tax items for 2025. It includes federal amounts, Wisconsin adjustments, Wisconsin-source amounts, and information about the partner’s capital account and share of liabiliti
What you'll need
Have the information requested on the form ready:
- Partnership name, address, and federal employer identification number (FEIN).
- Partner name, address, FEIN or Social Security number, partner type, and state of residence.
- Partner’s beginning and ending shares of profit, loss, and capital, plus year-end liabilities and capital account information.
- Partner’s share of income, deductions, credits, distributions, and Wisconsin additions and subtractions.
The form also calls for these attachments when applicable:
- Schedule AR for an amended Schedule 3K-1.
- A schedule for other items and amounts reported on Part III, line 20c.
- Schedules for the section 179, depreciation, amortization, and asset-basis amounts reported on Part V, lines 4, 5, 11, and 12.
- Schedule RT-1 from the related entity for Part V, line 10. The form says to include it with your return.
Common mistakes
- Leaving out Schedule AR with an amended form. The amended 3K-1 checkbox says to include Schedule AR.
- Completing items H through K for a full-year Wisconsin resident. The form says these items do not apply.
- Completing Part IV for a resident estate, trust, or individual partner. The form says Part IV does not apply to these partners.
- Completing both apportionment methods in Part IV. For the Wisconsin single sales factor method, do not complete lines 26 through 28. For the multiple factor method, do not complete line 25.
- Omitting Schedule RT-1 for Part V, line 10. Obtain it from the related entity and include it with your return.
Questions people ask
What does the 2025 Schedule 3K-1 report?
It reports a partner’s share of income, deductions, credits, and other items. It also includes partnership and partner information, capital and liability information, apportionment factors, and Wisconsin additions and subtractions.
Can the form identify a final or amended Schedule 3K-1?
Yes. Item C has separate checkboxes for a final 3K-1 and an amended 3K-1. For an amended form, include Schedule AR.
Where is Wisconsin tax withheld reported?
Wisconsin tax withheld is reported in Part III, line 15j.
What if the partner is a disregarded entity or trust?
Part II asks for information about the taxpayer or owner of the disregarded entity or trust, as well as information about the partner itself.