Schedule K-1 for H-1B Visa Holders: Partnership & S-Corp Income
H-1B workers who invest in partnerships, LLCs taxed as partnerships, or S-corporations receive a Schedule K-1 each year instead of a 1099. The K-1 reports your share of the entity's income, deductions, and credits across up to 20 coded boxes — and each box flows to a different line on your Form 1040. Misreporting K-1 income is one of the most common audit triggers for high-income filers.
K-1 timing and passive activity rules create two common traps
- Late K-1s: Partnerships and S-corps have until March 15 to file their returns (Form 1065 or 1120-S), which means K-1s often arrive after April 15. You may need to file an extension (Form 4868) if K-1s are pending. Do not estimate or omit K-1 income — the IRS matches K-1 data to individual returns.
- Passive activity loss rules: Most H-1B holders who are passive investors in a partnership cannot deduct partnership losses against ordinary income. Passive losses are suspended and carried forward until you have passive income or dispose of the interest. IRC §469 applies regardless of your visa status.
K-1 Box-by-Box Reference: What Goes Where
The Schedule K-1 (Form 1065 for partnerships; Form 1120-S for S-corporations) has 20+ boxes. Here are the boxes most relevant to H-1B investors:
| Box (1065) | Description | Form 1040 Destination |
|---|---|---|
| Box 1 | Ordinary business income (loss) | Schedule E, Part II; passive/active rules apply |
| Box 2 | Net rental real estate income (loss) | Schedule E, Part II; passive activity rules apply |
| Box 5 | Interest income | Schedule B |
| Box 6a/6b | Ordinary / qualified dividends | Schedule B |
| Box 9a/9c | Net long-term / unrecaptured §1250 capital gain | Schedule D |
| Box 10 | Net §1231 gain (loss) | Form 4797; may flow to Schedule D |
| Box 12 | Section 179 deduction | Form 4562; limited by at-risk and passive rules |
| Box 13 | Other deductions (Code W = other) | Various — depends on code |
| Box 15 | Credits (various codes) | Depends on credit type (e.g., Form 3800) |
| Box 20 | Other information (Code Z = QBI, Code AH = other) | Form 8995/8995-A (QBI); varies by code |
S-corporation K-1s (Form 1120-S Schedule K-1) use different box numbers but report similar items. The key difference from a partnership K-1 is that S-corp shareholder-employees also receive a W-2 from the corporation for their compensation.
Passive Activity Rules and H-1B Investors
IRC §469 disallows the deduction of passive activity losses (PALs) against non-passive income. For H-1B workers who are passive investors in a partnership (meaning they do not materially participate in the business), this rule means:
- Passive losses are suspended. If Box 1 of your K-1 shows a loss, and you are a passive investor, you cannot use that loss to reduce your W-2 income from your employer. The loss is suspended and carried forward on Form 8582 indefinitely.
- Passive income can absorb passive losses. If you receive passive income from one partnership, it can offset passive losses from another. This netting happens on Form 8582 before anything flows to Schedule E.
- Disposition of the entire interest releases suspended losses.When you sell or otherwise dispose of your entire interest in a passive activity, all suspended losses from that activity become fully deductible in the year of sale (IRC §469(g)).
- Material participation exception. If you materially participate in the partnership (generally 500+ hours per year or meeting other IRC §469(h) tests), the activity is active and losses can be used against any income. This is rare for H-1B workers with full-time employer jobs.
The “real estate professional” exception under IRC §469(c)(7) — which allows rental real estate losses to be fully deductible — requires more than 750 hours per year in real estate activities and real estate as your primary profession. This is essentially never available to H-1B workers employed full-time in tech, finance, or medicine.
Section §1231 Gains from K-1 (Box 10)
Box 10 reports your share of the partnership's §1231 gains and losses. Section 1231 assets are depreciable business property held more than one year — real estate, equipment, and similar assets. The tax treatment is favorable but complex:
- Net §1231 gains are taxed at long-term capital gains rates(0%, 15%, or 20% depending on your income), not ordinary income rates. This is more favorable than ordinary income treatment.
- Net §1231 losses are treated as ordinary losses, not capital losses. This means they can offset ordinary income without the $3,000 capital loss annual limitation. However, §1231 losses from prior 5 years (called §1231 lookback losses) can convert current §1231 gains back to ordinary income.
- Unrecaptured §1250 gain (Box 9c) is a subset of §1231 gain attributable to real estate depreciation. It is taxed at a maximum rate of 25%, not the standard 20% LTCG rate. This is automatically tracked on the §1231 gain worksheet.
The practical implication: if your partnership sold a building or equipment and allocated you a §1231 gain, that gain flows to Form 4797 and then may flow to Schedule D, ultimately taxed at preferential long-term capital gains rates rather than ordinary income rates.
Qualified Business Income (QBI) from K-1
Box 20, Code Z on a partnership K-1 (or Box 17, Code V on an S-corp K-1) reports your share of QBI — the input needed to calculate the 20% §199A deduction on Form 8995 or Form 8995-A. Key rules for H-1B holders:
- QBI deduction basics. You may deduct up to 20% of your share of qualified business income from a pass-through entity. For TY2026, this deduction phases out for specified service trades or businesses (SSTBs) — law, finance, consulting, health — above a taxable income threshold of $170,050 (single) or $340,100 (MFJ). Above these thresholds, the SSTB deduction is completely phased out.
- W-2 wages and UBIA limitation for high earners.If your taxable income exceeds the thresholds, the QBI deduction for non-SSTB businesses is limited to the greater of (a) 50% of W-2 wages paid by the business, or (b) 25% of W-2 wages plus 2.5% of the unadjusted basis of qualified property. Your K-1 should include these figures in Box 20.
- Passive loss interaction. QBI is reduced by any passive activity loss allocations. If your K-1 loss is suspended under passive activity rules, it reduces QBI in a future year when the loss is allowed.
Basis Tracking: At-Risk and Outside Basis
Partnership losses cannot exceed your outside basis in the partnership (IRC §704(d)) or your at-risk amount (IRC §465). This creates an additional layer of loss limitation beyond the passive activity rules:
- Outside basis starts with your initial investment, increases by your share of income and additional contributions, and decreases by your share of losses and distributions. If your basis is zero, losses are suspended even if the activity is not passive.
- At-risk amount is generally your economic investment plus amounts you have personally guaranteed. Non-recourse debt (common in real estate) increases basis but generally does not increase at-risk unless it meets the “qualified nonrecourse financing” exception of IRC §465(b)(6).
- Tracking responsibility is yours, not the partnership.The K-1 provides your ending capital account balance, but the tax basis computation is separate and must be maintained year-over-year. Keep your prior-year K-1s and basis worksheets.
Starting with TY2020, the IRS requires partnerships to report capital accounts on a tax basis (not book or GAAP basis), which has made basis tracking more straightforward. However, many early-stage partnerships and real estate partnerships still report book capital, requiring manual tax basis adjustments.
State Tax Complications with K-1 Income
K-1 income from a partnership operating in a different state may require you to file a nonresident return in that state. For example, if you live in California and are a partner in a New York real estate partnership, you may owe New York nonresident tax on your share of the partnership's New York-source income.
Many states have enacted composite return provisions or withholding requirements for nonresident partners. The partnership may file a composite nonresident return on your behalf and pay the tax — in which case you receive a withholding credit on your personal nonresident state return. Check Box 13 of your K-1 for state tax withholding amounts.
IRS source: IRS — About Schedule K-1 (Form 1065)
Related guides: Form 8995 QBI Deduction | State Taxes for H-1B Holders | State Tax Nexus for Remote Workers
Frequently Asked Questions
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H1B TaxFile Team
Written by the H1B TaxFile editorial team — tax professionals and software engineers who specialize in U.S. federal tax filing for H-1B visa holders, F-1 students, and nonresident aliens.
Reviewed by a licensed CPA with international tax experience.
Disclaimer: This guide is for educational purposes only and does not constitute tax or legal advice. Tax laws are complex and change frequently. Consult a qualified tax professional for advice specific to your situation.