Partnership Schedule K-1 Explained

What Is a Schedule K-1 for a Partnership?

Schedule K-1 (Form 1065), Partner's Share of Income, Deductions, Credits, etc., reports a partner's allocated share of federal partnership tax items. The partnership files Form 1065 and gives a K-1 to each person who was a partner during the year. The partner uses the K-1 and attached statements to prepare the partner's own return.

A partnership K-1 is not a wage statement and does not simply report cash received. A partner may owe tax on allocated income without receiving a distribution, while a cash distribution may be nontaxable to the extent of basis. Basis and other limitations must be calculated outside the K-1.

What a partnership K-1 reports

The schedule identifies the partnership and partner, the partner's type and profit, loss, and capital percentages, beginning and ending capital-account information, and the partner's share of liabilities. Its numbered boxes report categories such as:

• Ordinary business income or loss
• Rental real estate and other rental results
• Interest, dividends, royalties, and capital gains
• Guaranteed payments
• Section 179 deduction and other deductions
• Self-employment information
• Credits, foreign items, tax-exempt income, and nondeductible expenses
• Distributions and other information requiring statements

The boxes remain separate because the partner's return may apply different rates, forms, elections, and limitations to each category.

Allocation is not the same as distribution

Suppose a two-member partnership earns $100,000 after expenses and its agreement validly allocates 60% to Alex and 40% to Jordan. Alex's K-1 may report $60,000 of ordinary business income even if the partnership distributes only $20,000 to Alex during the year.

The distribution generally reduces outside basis and is not added again as ordinary income. If a distribution exceeds outside basis, some or all may become taxable, with special rules for money, marketable securities, and property distributions.

Unlike an S corporation, a partnership can sometimes make special allocations, but they must comply with the partnership agreement and federal substantial-economic-effect or partner-interest rules. Owners cannot casually change percentages after seeing the tax result.

Outside basis, capital account, and liabilities

Outside basis is the partner's tax basis in the partnership interest. It commonly begins with contributed money and adjusted basis of property, then changes for allocated income, deductions, contributions, distributions, and the partner's share of partnership liabilities.

The capital account reported on Schedule K-1 is not necessarily outside basis. A tax-basis capital account generally excludes the partner's share of entity debt, while outside basis may include qualifying liability allocations. A K-1 can therefore show a capital account that differs substantially from the basis available for loss or distribution calculations.

Partnership liabilities are commonly classified as recourse, nonrecourse, or qualified nonrecourse financing. Allocation rules are complex, and a decrease in a partner's share of liabilities can be treated like a cash distribution. Maintain a separate basis schedule rather than assuming the K-1's capital line is sufficient.

Loss limitations

A loss shown on a partnership K-1 is not automatically deductible. The partner generally applies limitations in a required sequence:

1. Outside-basis limitation
2. At-risk limitation
3. Passive activity limitation
4. Excess business loss and other applicable limitations

Suspended losses may carry forward under the relevant rule. Material participation does not create basis or an amount at risk; it addresses a different limitation. Partnership debt may affect basis without always increasing the partner's at-risk amount.

Guaranteed payments and self-employment tax

Guaranteed payments are amounts determined without regard to partnership income and are separately reported. They are not employee wages and generally do not produce a Form W-2. A general partner's ordinary business income and guaranteed payments may be included in net earnings from self-employment, while limited partners and LLC members require more fact-specific analysis.

Partners are generally self-employed rather than employees of the partnership for federal tax purposes. Withholding does not ordinarily occur like W-2 payroll, so estimated tax planning may be necessary.

Where partnership K-1 items go

Ordinary business and rental items commonly flow to Schedule E, Part II, after limitations. Interest, dividends, capital gains, charitable contributions, credits, foreign items, and Section 179 amounts may flow to other forms or schedules. Box codes and attached statements are essential; entering only box 1 can omit material information.

The partner generally keeps the K-1 rather than attaching it to the individual return unless an instruction or particular item requires attachment. The partnership files its copy with Form 1065.

Federal and California treatment

California partnerships commonly furnish Schedule K-1 (565), while LLCs taxed as partnerships commonly furnish Schedule K-1 (568). These schedules report California-source amounts, state adjustments, credits, withholding, and other data used on Form 540, Form 540NR, or an entity return.

Federal and California K-1 amounts can differ because California does not conform to all federal depreciation, deduction, basis, credit, or sourcing rules. A nonresident partner may have California filing and payment obligations even when no California cash distribution occurred. California pass-through entity elective-tax credits should be claimed from the correct supporting forms and lines rather than assumed from the federal K-1.

Common partnership K-1 mistakes

• Reporting only cash distributions instead of allocated tax items
• Treating the capital account as outside basis
• Deducting a loss without basis, at-risk, or passive-loss analysis
• Missing K-1 statements or Schedule K-3 information
• Ignoring guaranteed payments or self-employment tax
• Combining separately stated items into ordinary income
• Failing to record ownership or liability changes
• Omitting a final or amended K-1
• Copying federal amounts into California without reviewing K-1 (565) or (568)

Records to gather

Keep every original, corrected, and final K-1; the partnership agreement and amendments; contribution and distribution records; purchase documents; prior outside-basis schedules; liability allocations; Forms 8082, 6198, 8582, and related workpapers; state K-1s; withholding statements; and disposition documents. A new preparer needs the history, not only the current K-1.

Frequently asked questions

Related terms

• Schedule K-1
• Form 1065
• Material Participation
• Pass-Through Entity
• California PTE Elective Tax

Official sources

• IRS — About Form 1065 and Schedule K-1
• IRS — 2025 Partner's Instructions for Schedule K-1
• IRS — Publication 541, Partnerships
• IRS — Publication 925, Passive Activity and At-Risk Rules
• California FTB — 2025 Form 565 booklet
• California FTB — 2025 Schedule K-1 (568) instructions

The definitions and examples on this page are for informational purposes only and do not constitute tax advice. Tax laws change frequently and individual circumstances vary. Consult a qualified tax professional before making decisions based on this content.