If you’ve ever invested in a partnership, private fund, or certain income-oriented assets, you may have encountered a different kind of tax form: Schedule K-1.
Understanding what’s on a K-1 and why some investments use it can help you better anticipate tax season and make more informed decisions about how these holdings fit into your overall strategy.
What is Schedule K-1?
Schedule K-1 is a tax form that reports your share of income, losses, deductions, and credits from investments structured as “pass-through” entities—such as partnerships, S corporations, some LLCs, and certain trusts.
Unlike traditional corporations, which pay taxes at the entity level, pass-through entities generally pass income, gains, losses, and other tax items directly to investors. That means you may owe tax on your share of income even if you didn't receive a cash distribution from the investment.
What’s on Schedule K-1?
Schedule K-1 is divided into 3 sections, and while much of it is technical, a few fields can be especially useful.
Part 1: Information about the entity
Part of Schedule K-1 includes basic details about the investment, like the entity’s name, employer identification number (EIN), and whether it’s publicly traded.
Part 2: What matters most for investors
Part 2 focuses on the individual investor.
- Ownership share (profits, losses, and capital). Determines how much income or loss flows through to you—and helps explain differences between reported income and cash distributions.
- Share of liabilities. Your portion of the entity’s debt can affect your tax basis and whether losses are deductible—and may signal how much leverage the investment is using.
- Capital account activity. Tracks contributions, withdrawals, income, and losses over time, offering a view into how your investment is evolving.
- Domestic vs. foreign status. Foreign exposure may introduce additional reporting requirements or tax considerations.
Part 3: How income and tax items are reported
Part 3 shows how your returns are generated—and taxed.
- Ordinary income vs. capital gains. Income is often broken into different categories, such as ordinary business income and capital gains.
Ordinary income is typically taxed at your regular income tax rate, while long-term capital gains may qualify for lower rates. The mix can influence your after-tax return and may differ significantly from the simpler reporting you’d see on a 1099.
- Distributions vs. taxable income. Cash received and taxable income may not match. You could owe tax even if distributions are limited—or nonexistent.
- Deductions and losses. K-1s may also pass through deductions or losses, which can help offset other income. However, tax rules can limit how and when those losses can be used, meaning the benefit may be spread out over time.
- Other income and specialized items. Some K-1s include interest, dividends, credits, or foreign income.
What's the difference between Form 1065 and Schedule K-1?
Form 1065 is the income tax return partnerships file. Schedule K-1, on the other hand, is specific to each individual partner, owner, or beneficiary. When a partnership files Form 1065, it also creates Schedule K-1s for each partner or owner of that partnership. The partner is expected to use the information on Schedule K-1 when filing their personal income taxes.
Schedule K-1 vs. Form 1099: What’s the difference?
Investors often encounter both Schedule K-1 and Form 1099, but they serve different purposes and can lead to very different tax experiences.
- Form 1099 is used for traditional investments like stocks and mutual funds. It reports income in a standardized format and is typically available earlier in tax season.
- Schedule K-1 is used for pass-through investments. It breaks income into multiple categories, each with its own tax treatment—often requiring more detailed reporting.
Types of Schedule K-1s
Not all K-1s are the same. The type you receive depends on how the investment is structured, which can influence both what appears on the form and how it affects your taxes.
Partnerships (including many alternative investments): Private funds, real estate investments, and MLPs often fall into this category. Income flows through directly to investors.
S corporations: Common among closely held businesses. Income flows through directly to shareholders.
Trusts and estates: If you're a beneficiary of a trust or estate, you may receive a K-1 showing your share of distributed income.
Why some investments issue K-1s
Certain investments—particularly in alternatives—are structured as partnerships and issue K-1s instead of 1099s. This can offer distinct tax characteristics, but also trade-offs:
- Timing: Often issued later in tax season.
- Complexity: May require additional reporting.
- Multi-state exposure: Potential filing requirements in multiple states.
For some investors, these trade-offs are worth it to be able to access certain investments that may not be available with simplified tax reporting. For others, the simplicity of 1099 reporting may be preferable.
Understanding which type of tax form an investment generates can help set expectations—not just for tax season, but for how the investment fits into your overall plan.
Who receives a K-1—and when?
If you’re a partner, shareholder, or beneficiary of a pass-through entity, you’ll generally receive a K-1.
They’re often issued later than other tax forms, frequently around March or later, which may lead some investors to file an extension.
Is income reported on a K-1 taxable?
In most cases, the income reported on a K-1 is taxable. The treatment depends on the type of income.
Ordinary income and short-term gains are typically taxed at ordinary rates, while long-term gains may receive more favorable rates. Deductions and credits passed through the K-1 may help offset some of that tax liability.
How to use Schedule K-1 when filing
If you receive a K-1, you’ll use the information it contains to prepare your tax return. While you generally don’t need to file the form itself, you should keep it for your records.
In practice, this means:
- Reviewing the form for accuracy
- Reporting income, gains, and losses in the appropriate sections of your return
- Claiming any eligible deductions or credits
Because K-1s can include multiple income types and sometimes more complex items, some investors choose to work with a tax professional—especially when dealing with multiple K-1s or investments with broader tax implications.