Introduction
You open an email from a U.S. fund, partnership or trustee and find a Schedule K-1. It looks nothing like the payment summary or distribution statement you're used to seeing in Australia. The numbered boxes, codes and attached statements raise an obvious question: what do I do with this?
A K-1 reports your share of income, losses, deductions, credits and other tax items from a pass-through entity. This guide covers the three K-1 versions, how they connect to Forms 1065, 1120-S and 1041, and the cross-border points Australian recipients should check before lodging anything.
Key Takeaways
- A Schedule K-1 is an IRS form passing an entity's tax items to partners, shareholders or beneficiaries.
- Partnerships, S corporations, and trusts or estates each issue a different K-1 version.
- K-1 income can be taxable even when you receive little or no cash.
- Australian residents need to assess both U.S. filing duties and Australian tax consequences.
What Is a K-1 Form and How Does It Work?
A Schedule K-1 is an information statement. The entity calculates its income, deductions and credits, allocates them to owners or beneficiaries, and reports each person's share on an individual K-1.
The entity-level return supplies the underlying numbers. According to the IRS Form 1065 instructions, Form 1065 is the partnership information return, and each K-1 shows a partner's separate share. S corporations use Form 1120-S, and estates and trusts use Form 1041.
Who receives a K-1
- Partners in a partnership
- Shareholders of an S corporation
- Beneficiaries of a trust or estate
An LLC is not automatically in any of these groups. An LLC with two or more members defaults to partnership treatment, while a single-member LLC is disregarded unless it elects corporate status. The label "LLC" alone doesn't tell you which return applies.
Allocation is not distribution
Here is a simple hypothetical. A partnership earns $100,000 and you hold a 20% share. It keeps the cash to fund expansion and pays you nothing. Your K-1 still reports $20,000 of allocated income, and you may owe tax on it. Partnership and S corporation instructions both say shares of income are included whether or not distributed.
Using and keeping the form
You use the K-1 data to complete your own return. Generally you don't attach the K-1 to a U.S. return unless specifically required, such as when backup withholding appears in box 13, code O on a Form 1120-S K-1. Keep the form and any supplemental statements.
What Are the Different Types of Schedule K-1?
| Version | Issuer | Recipient |
|---|---|---|
| Schedule K-1 (Form 1065) | Partnership | Partner or LLC member taxed as a partnership |
| Schedule K-1 (Form 1120-S) | S corporation | Shareholder |
| Schedule K-1 (Form 1041) | Estate or trust | Beneficiary |
These are distinct statements, not interchangeable versions of one form.
Partnerships (Form 1065)
Partners may see items such as:
- Ordinary business income and rental income
- Interest, dividends and royalties
- Capital gains, credits and liabilities
- Guaranteed payments
Guaranteed payments are set without regard to partnership income. Box 4a reports payments for services, 4b payments for capital, and 4c the total.
S corporations (Form 1120-S)
A shareholder who also works for the company must be paid reasonable compensation as wages before non-wage distributions. Those wages appear on a Form W-2, while the K-1 reports the shareholder's share of the corporation's profit. They are separate streams.
Eligibility is strict: S corporations can't have non-resident alien shareholders. Australian tax residency alone doesn't tell you whether someone can hold S corporation shares.
Trusts and estates (Form 1041)
Depending on the fiduciary return, beneficiaries may see:
- Interest, dividends and capital gains
- Business or rental income
- Allocated deductions
C corporations sit outside this set. A C corporation generally pays its own tax and doesn't issue a pass-through K-1 for ordinary profits. Confirm the entity's tax classification before deciding what form to expect.
What Information Is on a K-1 and How Can It Affect Taxes?
Each K-1 has sections identifying the issuing entity, identifying you, and showing your share of income, deductions, credits and other items. Partnership K-1s also include ownership, liability and capital account details.
Don't rely on ownership percentage alone. Tax treatment depends on the codes and the character of each item.
Common income categories
On the 2025 Form 1065 K-1, for example:
- Box 1: ordinary business income
- Boxes 2-3: rental income
- Box 5: interest
- Boxes 6a-6c: dividends
- Box 7: royalties
- Boxes 8 and 9a: short-term and long-term gains
Box numbers differ across versions. Interest is box 4 on the 1120-S K-1 and box 1 on the 1041 K-1, so always read the instructions for your specific form.
Why a loss may not be deductible
A K-1 loss is not automatically deductible in full. For partnerships, limits typically apply in this order:
- Outside basis
- At-risk rules
- Passive activity rules
- Excess business loss rules
Losses disallowed for basis reasons carry forward. S corporation shareholders face basis, at-risk and passive restrictions too.
Track outside basis yourself. The K-1 capital account can't be used to determine it.
Points for international recipients
- Schedules K-2 and K-3 extend the K-1 for internationally relevant items, including foreign tax credit information.
- Foreign partners may see section 1446 withholding on Form 8805, while certain non-effectively connected income is reported on Forms 1042 and 1042-S.
- State filing obligations can apply, and rules vary by state.
K-1 versus Form 1099
A 1099 usually reports a specific payment or investment item. A K-1 breaks an entity's activity into several categories that flow to different parts of a return, and it can create tax without any cash payment.
How to Handle a K-1 When Filing
- Obtain the final K-1 from the partnership, S corporation, trustee, estate representative or fund administrator.
- Check the tax year and your details, including name, identification number and ownership dates.
- Read every code and attached statement, and note whether a K-3 is expected.
- Reconcile against distributions, ownership changes, basis records and prior-year carryforwards.
- Transfer amounts by character to the right schedules.
For 2025 examples, non-passive partnership ordinary income goes to Schedule E, line 28, and partnership long-term gains go to Schedule D, line 12. Confirm each code's destination in the current instructions.
Late, missing or corrected K-1s
K-1s often arrive after other tax documents. For calendar-year 2025, Forms 1065 and 1120-S were due 16 March 2026 and Form 1041 on 15 April 2026. Entities can extend with Form 7004, generally by six months (5½ months for trusts and most estates).
- Missing K-1: you generally file Form 8082 if the entity hasn't supplied it by your filing deadline, including extensions, completing it to the best of your knowledge.
- Incorrect K-1: ask the entity for a corrected statement. Don't alter your own copy.
- Individual extensions: Form 4868 extends time to file, not time to pay.
When to get professional review
Consider professional help if you have:
- Multiple K-1s
- Partnership losses
- Foreign ownership
- Trust or estate distributions
- Complex investments
- Doubt about whether the K-1 is final
What Australian Taxpayers Should Consider With a U.S. K-1
A U.S. K-1 doesn't settle your Australian position. U.S. reporting, withholding credits and Australian foreign income tax offset (FITO) eligibility are separate questions.
- Residency: per the ATO's residency guidance, Australian tax residents declare worldwide income.
- Currency: convert foreign income, deductions and foreign tax paid to Australian dollars before calculating net income.
- FITO: foreign tax must actually be paid, and claims above A$1,000 require an offset limit calculation. Excess tax can't be carried forward or refunded.
- Entity classification: the ATO may treat U.S. LLCs as foreign hybrids when statutory conditions are met; outcomes vary by entity and elections.
In ATO ID 2010/77, a single-member LLC that hadn't elected corporate treatment was treated as a partnership. That outcome doesn't extend to every LLC or S corporation.
Don't copy K-1 figures straight into an Australian return. Review the character of each item and the currency conversion first. The Australian return period also differs: 1 July to 30 June, versus the calendar year most K-1s cover.
Documents to gather
- The complete K-1 and supplemental statements
- Schedule K-3, if issued
- Distribution records and ownership dates
- Records of U.S. tax withheld or paid, including Form 8805 where relevant
- Prior-year K-1s
- Relevant Australian tax records
Keep FITO records generally for five years, longer if an extended amendment period applies.
VJM Global's U.S.-trained CPAs and Indian Chartered Accountants support clients on cross-border accounting and international tax planning, including review of U.S. tax documentation. That support helps when a K-1 raises U.S. and Australian questions at once. No adviser can guarantee a particular tax result.
Frequently Asked Questions
What is a K-1 form and how does it work?
A Schedule K-1 reports your share of a pass-through entity's income, deductions and credits. Partnerships, S corporations, and trusts or estates issue them, and you use the figures on your own return.
Do I need to report a Schedule K-1 on my tax return?
You generally report the K-1 items on the relevant return rather than attaching the form itself. Exact treatment depends on the K-1 type, the codes and your circumstances.
How does income reported on a Schedule K-1 affect my tax return?
Items can raise or lower taxable income and flow to different schedules. You can owe tax on allocated income even without an equivalent cash distribution.
How do I get my Schedule K-1 tax form?
The partnership, S corporation, trustee, estate representative or fund administrator provides it. If it's missing, ask the issuer first, then consider Form 8082 if your deadline approaches.
How does a K-1 loss affect my taxes?
Basis, at-risk, passive activity and other rules can limit the loss. It may not be fully deductible this year, and some amounts carry forward.
What is Form 1065 and how does it relate to a Schedule K-1?
Form 1065 is the partnership's U.S. information return. Each Schedule K-1 (Form 1065) reports one partner's allocated share for use in that partner's tax reporting.
