Partnership income is subject to self-employment tax when it compensates your labor, and largely exempt when it represents a return on your investment. If you’re a general partner, your entire distributive share of ordinary business income plus any guaranteed payments for services get hit with the 15.3% SE tax. If you’re a limited partner, only your guaranteed payments for services are taxed; your distributive share is excluded by statute. LLC members taxed as partnerships sit in a gray area the IRS has never finalized, and where you land depends on how actively you participate in the business.
General Partners Owe SE Tax on the Full Share
A general partner’s entire distributive share of the partnership’s ordinary trade or business income is subject to SE tax, along with any guaranteed payments received for services. The tax code defines net earnings from self-employment to include a partner’s distributive share of trade or business income from any partnership in which they’re a member.1Office of the Law Revision Counsel. 26 U.S. Code 1402 – Definitions There’s no carve-out based on how many hours you work or whether you delegate operations. If you’re a general partner on paper, you pay SE tax on partnership earnings.
The tax exists to capture what employees pay through payroll. W-2 workers split Social Security and Medicare taxes with their employer, each side covering 7.65%. Partners have no employer, so they cover both halves themselves.
Limited Partners: Distributive Share Excluded, Service Payments Aren’t
The statute explicitly excludes “the distributive share of any item of income or loss of a limited partner, as such” from net earnings from self-employment, with one exception: guaranteed payments for services the partner actually performs for the partnership.1Office of the Law Revision Counsel. 26 U.S. Code 1402 – Definitions The rationale is that a limited partner’s income is fundamentally a return on invested capital, not compensation for labor.
The phrase that matters is “as such.” Courts read it as an economic-substance test rather than a label test. In Renkemeyer, the Tax Court held that attorneys in a limited liability partnership couldn’t claim the exclusion just because state law called them limited partners. Their income came from legal services they personally performed, so the exclusion didn’t apply. If your distributive share reflects your own labor rather than a return on capital, the IRS can challenge the exclusion regardless of your formal title.
LLC Members: An Unresolved Middle Ground
Multi-member LLCs taxed as partnerships create the biggest headaches, because no final regulation defines which LLC members count as “limited partners” for SE tax purposes. The IRS proposed regulations in 1997 that would have treated an LLC member as a limited partner unless they had personal liability for partnership debts, authority to bind the partnership in contracts, or participated in the business for more than 500 hours during the year.2Internal Revenue Service. Definition of Limited Partner for Self-Employment Tax Purposes Those proposed rules would also have denied the limited partner exclusion entirely to service partnerships in fields like law, medicine, accounting, and consulting.
Congress imposed a moratorium preventing the IRS from finalizing those regulations, and nearly three decades later, the rules remain in proposed form. In practice, the IRS generally treats managing members as general partners who owe SE tax on their full distributive share. Passive investor-members who don’t participate in management have a reasonable argument for the limited partner exclusion, but it’s an argument, not a guarantee. LLC members relying on the exclusion are operating in a space where the IRS retains enforcement discretion and no binding regulation constrains either side.
Guaranteed Payments: Services Are Taxed, Capital Isn’t
Guaranteed payments for services are subject to SE tax whether you’re a general partner, limited partner, or LLC member. The limited partner exclusion specifically does not cover these payments.3Internal Revenue Service. Self-Employment Tax and Partners A guaranteed payment for services is any amount the partnership pays you for work you perform, determined without regard to partnership income. It functions as a salary equivalent, so it gets taxed like labor.
Guaranteed payments for the use of capital are different. These compensate money you’ve invested in the partnership, and they aren’t subject to SE tax. The distinction shows up on the K-1: payments for services appear in Box 4a, payments for capital in Box 4b.4Internal Revenue Service. Partner’s Instructions for Schedule K-1 (Form 1065) If you’re a limited partner receiving guaranteed payments, make sure your K-1 properly separates the two.
How the SE Tax Is Calculated
Start with the figures on your Schedule K-1 (Form 1065). Box 14, Code A reports net earnings from self-employment, and Box 4a reports guaranteed payments for services.4Internal Revenue Service. Partner’s Instructions for Schedule K-1 (Form 1065) Combine them, then subtract any unreimbursed partnership expenses and Section 179 deductions you’re entitled to claim.
Before applying the tax rate, multiply the combined figure by 92.35%. That adjustment mirrors the treatment employees get, since they don’t pay FICA on the employer’s share of their payroll taxes. The 92.35% factor (100% minus the 7.65% employer-equivalent share) reduces your taxable base to put you on roughly equal footing with a W-2 worker.5Social Security Administration. How to Compute NESE The result is your net earnings from self-employment (NESE).
Social Security and Medicare Components
The 12.4% Social Security portion applies to NESE up to $184,500 in 2026.6Social Security Administration. Contribution and Benefit Base Above that threshold, no additional Social Security tax applies. If you also earn W-2 wages, those wages count toward the cap first, which can reduce or eliminate the Social Security portion of your SE tax.
The 2.9% Medicare portion has no income cap; every dollar of NESE is subject to it. An additional 0.9% Medicare surtax applies when self-employment income exceeds $200,000 for single filers, $250,000 for joint filers, or $125,000 for married filing separately.7Office of the Law Revision Counsel. 26 USC 1401 – Rate of Tax These thresholds aren’t indexed for inflation. Above them, your effective Medicare rate is 3.8%.
The Half-Tax Deduction
Once you calculate your total SE tax, you can deduct half of it from your adjusted gross income on Form 1040.8Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes) This is separate from the 92.35% multiplier and reduces your income tax, not your SE tax. It’s above the line, so you get it whether or not you itemize.
Partnership Income That Escapes SE Tax
Not everything flowing through a partnership triggers SE tax, even for general partners. Several categories are carved out of NESE:
- Rental income from real estate is excluded unless you’re a real estate dealer selling property to customers. Owning rental property through a partnership, even actively managing it, doesn’t by itself make you a dealer.9eCFR. 26 CFR 1.1402(a)-4 – Rentals From Real Estate
- Interest and dividends are returns on capital rather than earnings from a trade or business, so they don’t count.
- Capital gains and losses pass through to your personal return but don’t land on Schedule SE.
These items appear on separate K-1 lines and flow to the appropriate schedules on Form 1040 rather than to Schedule SE.
The NIIT Trade-Off for Limited Partners
Income that escapes SE tax doesn’t necessarily escape all additional taxes. The 3.8% net investment income tax applies to passive income, including a limited partner’s distributive share, when modified AGI exceeds $200,000 (single), $250,000 (joint), or $125,000 (married filing separately).10Office of the Law Revision Counsel. 26 USC 1411 – Imposition of Tax Like the additional Medicare tax thresholds, these figures aren’t indexed for inflation.
The interaction that catches partners off guard: income already subject to SE tax is excluded from NIIT, but income excluded from SE tax is not automatically excluded from NIIT.11Internal Revenue Service. Instructions for Form 8960, Net Investment Income Tax Limited partners trade a potential 15.3% SE tax for a potential 3.8% NIIT. Still a meaningful savings, but not the zero-tax outcome some partners expect when they hear “excluded from self-employment tax.” The rental income, interest, dividends, and capital gains excluded from NESE can also be subject to NIIT for higher-income partners.
Reporting and Estimated Payments
The partnership files Form 1065 and issues each partner a Schedule K-1. You use those figures to complete Schedule SE (Form 1040), which calculates your SE tax and carries it to your Form 1040.12Internal Revenue Service. Instructions for Schedule SE (Form 1040) Most partners use the short version (Section A); certain situations, such as owing SE tax on only part of your partnership income, require the long version (Section B).
Partnerships don’t withhold taxes from distributions, so you’re on the hook for quarterly estimated payments covering both income tax and SE tax. You make them on Form 1040-ES.13Internal Revenue Service. Estimated Taxes For 2026 income, the deadlines are April 15, 2026; June 15, 2026; September 15, 2026; and January 15, 2027.
You generally need to make estimated payments if you expect to owe at least $1,000 in tax after subtracting withholding and refundable credits, and your withholding will cover less than 90% of your 2026 liability or 100% of your 2025 liability (whichever is smaller).14Internal Revenue Service. Form 1040-ES – Estimated Tax for Individuals Falling short triggers an underpayment penalty at the IRS’s quarterly interest rate, which sits at 7% as of early 2026.15Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026 New partners often get caught in their first year, when there’s no prior-year liability to use as a safe harbor.