K-1

A Schedule K-1 is a federal tax form issued by pass-through entities (such as partnerships, S corporations, and certain trusts and estates) to report each owner's or beneficiary's share of the entity's income, deductions, credits, and losses. Recipients use the K-1 to complete their individual tax returns. Unlike a W-2 or 1099, the K-1 does not report wages or direct payments; it reflects a proportional share of the entity's overall tax items.

How a K-1 works

Pass-through entities do not pay federal income tax at the entity level. Instead, the entity files an informational return: Form 1065 for partnerships, Form 1120-S for S corporations, or Form 1041 for trusts and estates. Then the entity issues a K-1 to each partner, shareholder, or beneficiary.

The K-1 breaks down the recipient's allocated share of the entity's financial activity, including ordinary business income or loss, rental income, interest, dividends, capital gains, and applicable deductions or credits. The recipient then carries those figures onto their personal Form 1040 as if they had earned the income directly.

Key characteristics of a K-1

• Reflects allocated share, not cash received: A partner may owe tax on K-1 income even if the entity made no distributions.
• Multiple line items: A single K-1 may report ordinary income, separately stated items (such as capital gains or charitable contributions), and tax credits, each treated differently on the recipient's return.
• Basis tracking required: Recipients must track their ownership basis in the entity, which affects loss deductibility and gain calculation upon sale. Losses can only be deducted to the extent the recipient has a sufficient basis; excess losses are suspended and carried forward.
• Late arrival is common: If the issuing entity files an extension, recipients will likely need to file a personal extension as well.

Why a K-1 matters

The K-1 is the primary document connecting a pass-through entity's tax position to an owner's personal tax liability. Failing to account for K-1 income, even if no cash was distributed, can result in underpayment of taxes and potential penalties.

K-1 income may be subject to self-employment tax for general partners and active LLC members, depending on the individual's role. Passive investors may face different treatment, particularly regarding the deductibility of losses.

Because K-1s depend on the entity completing its own return first, they frequently arrive in March or April, or later if the entity files an extension, which can push delivery to September or October.

K-1 vs. 1099

A 1099 reports direct payments made to an individual, such as freelance income or dividends from a corporation. A K-1 reports an allocated share of a pass-through entity's tax items, regardless of whether cash changed hands. The key distinction: 1099 income reflects actual payments received, while K-1 income reflects the recipient's proportional share of the entity's tax attributes for the year.

Related terms

• Business entity status: The type of entity, partnership, S corporation, or trust, determines which version of the K-1 is issued and which IRS form it accompanies.
• LLC formation: LLCs taxed as partnerships issue K-1s to their members, and understanding this obligation is part of choosing the right business structure.
• Direct and indirect ownership: In tiered structures, an entity may itself receive a K-1 from another pass-through entity, creating layered reporting obligations.

FAQs about Schedule K-1

Do you owe taxes on K-1 income if you never received a distribution?

Yes. K-1 income is taxable in the year it is allocated, regardless of whether the entity distributed any cash. A partner whose share of profits was retained by the business still owes personal income tax on that amount.

Does receiving a K-1 mean you owe self-employment tax?

It depends on your role. General partners and active LLC members typically owe self-employment tax on ordinary business income reported on a K-1; limited partners and passive investors generally do not. S corporation shareholders face different rules: Their K-1 income is not subject to self-employment tax, but the IRS requires that they receive a reasonable salary.

Do you file the K-1 itself with your tax return?

No. The K-1 is a supporting document used to transfer figures onto the appropriate schedules of your Form 1040. The IRS receives a copy directly from the issuing entity, and recipients should retain their copy for their records.