LLC Taxes: How Your LLC Gets Taxed and What You Actually Owe
The most misunderstood thing about LLC taxes is that the LLC itself is a state-law creature, not a federal tax classification. When you form an LLC with your state, you get liability protection. But the IRS doesn’t have a tax form labeled “LLC return.” Instead, it assigns your LLC a default tax classification based on how many members (owners) it has, and then taxes it under the rules for that classification.
How Single-Member LLC Taxes Work
If you’re the only owner of your LLC, the IRS treats it as a “disregarded entity” by default. You report the business income and expenses on Schedule C. The net profit from Schedule C is also subject to self-employment tax, which covers Social Security and Medicare. The self-employment tax rate is 15.3% on the first $176,100 of net earnings (for 2025) and 2.9% on everything above that. Plus there’s an additional 0.9% Medicare surtax once your earned income exceeds $200,000 if you’re single, or $250,000 if you’re married filing jointly.
Multi-Member LLC Taxes
When an LLC has two or more members, the IRS defaults to treating it as a partnership. The LLC files a partnership return (Form 1065).
S-Corp Election
Any LLC can elect to be taxed as an S corporation by filing Form 2553 with the IRS.
State-Level LLC Taxes
Federal LLC taxes are only part of the equation. Many states impose additional taxes or fees on LLCs.
Key Limits for 2025
- Self-employment tax 15.3% on first $176,100 of net earnings (2025 SS wage base).
- Solo 401(k): $23,500 employee deferral / $70,000 combined for 2025. Ages 60–63 SECURE 2.0 special catch-up of $11,250.
- Section 179 limit: $1,250,000 for 2025. Rises to $2,500,000 for property placed in service after July 4, 2025 under OBBBA §70306.
How an LLC Filing Lands on Your 1040
Most clients hear “pass-through”. And assume the LLC return is the end of the story. It isn’t. Whatever the LLC produces has to land somewhere on your personal Form 1040, and the path depends entirely on how the entity is classified.
For a single-member LLC treated as a disregarded entity under the check-the-box rules in Treas. Reg. §301.7701-3, the LLC itself doesn’t file a federal return. You attach a Schedule C to your 1040 reporting gross receipts and ordinary business expenses. The net profit drops onto Schedule 1, then rolls into Form 1040 Line 8 as additional income. Rental real estate held in a disregarded LLC reports on Schedule E instead of Schedule C. Same idea, different schedule.
A multi-member LLC defaults to partnership classification under IRC §7701 and files Form 1065. The partnership return itself doesn’t pay tax. It issues a Schedule K-1 to each member showing their share of ordinary income, separately stated items, guaranteed payments, capital contributions, and distributions. Each K-1 then feeds the member’s personal return. Ordinary business income usually shows up on Schedule E Part II, rental income on Schedule E Part I, capital gains on Schedule D, and so on. All of it eventually flows to Form 1040 Line 8 (or Line 7 in the case of capital gains) and contributes to your total tax.
When the LLC has elected S-corp treatment by filing Form 2553, the entity files Form 1120-S instead. You still get a K-1, but this one comes from an S corporation and behaves differently than a partnership K-1. There are no self-employment-tax allocations, distributions don’t trigger SE tax, and any wages you paid yourself show up on a W-2 you’ll attach to the 1040.
If you e-file your personal return, you (and your spouse if filing jointly) sign Form 8879, the IRS e-file Signature Authorization. That signature covers everything that flowed up from the LLC. People sometimes ask whether the 8879 needs to cover the entity return too. It doesn’t. Form 1065 and Form 1120-S each have their own e-file authorization (Form 8879-PE and Form 8879-S). Two filings, two signatures, one consolidated tax bill on your 1040.
Payroll Tax Mechanics for LLC Owners
This is where LLC tax planning gets interesting, and where a lot of money gets left on the table. The payroll tax treatment of LLC income shifts completely based on classification.
A single-member LLC owner pays self-employment tax on every dollar of net profit. The mechanics live on Schedule SE, which calculates the combined 15.3% rate (12.4% Social Security on earnings up to the wage base, plus 2.9% Medicare with no cap, plus the 0.9% Additional Medicare Tax above $200,000 single or $250,000 joint). The IRS lays out the rules in Publication 334 and the deductibility of business expenses in Publication 535. Half the SE tax is deductible above the line on Schedule 1, which softens the blow a little.
A multi-member LLC taxed as a partnership generally allocates SE earnings to general partners and managing members on each K-1, line 14. Limited partners who don’t materially participate can sometimes avoid SE tax on their distributive share, but the IRS has gotten aggressive about this position over the last few years (see the Soroban Capital Tax Court case). The default assumption for an active member should be that the K-1 income is subject to SE tax. Publication 541 covers the partnership-tax framework if you want the longer version.
An LLC taxed as an S corporation runs payroll the way any C corporation does. The owner-employee gets a W-2, the LLC withholds federal income tax, Social Security, and Medicare from each paycheck, and the LLC pays the employer half of FICA out of its own pocket. The remaining profit passes through on a K-1 free of payroll tax. That is the entire mechanical reason people elect S-corp status: every dollar paid out as a distribution instead of wages skips the 15.3% payroll-tax bill. The catch is the “reasonable compensation”. Standard. The IRS expects the wage portion to reflect what you’d pay someone else to do your job. Pay yourself $40,000 in salary on $400,000 of profit and you’re inviting an audit.
One more wrinkle. If your S-corp LLC has any employees other than you, you also owe federal unemployment tax via Form 940 and quarterly payroll tax deposits via Form 941. A partnership without employees doesn’t have these obligations on partner draws.
LLC Tax-Return Mistakes We See Every Year
A few patterns repeat themselves in new-client returns we pick up after another preparer.
Missing the S-election deadline. Form 2553 has to be filed by the 15th day of the third month of the tax year you want the election to take effect (March 15 for calendar-year entities). Miss that and you’re stuck as a partnership or sole prop for the year. Rev. Proc. 2013-30 grants automatic late-election relief up to three years and 75 days back if you meet a narrow set of conditions, so all is not lost — but the cleaner move is filing on time. We see at least a dozen of these every spring.
Defaulting into the wrong classification. A multi-member LLC owned by two spouses in a community-property state can be treated as a disregarded entity under Rev. Proc. 2002-69, filing two Schedule Cs instead of a 1065. In a common-law state, the same setup forces a partnership filing. People assume their LLC is “however we want it to be.” It isn’t. The default rules in Treas. Reg. §301.7701-3 control unless you file Form 8832 to elect otherwise. Publication 542 walks through the corporate alternatives.
Skipping the 1065 because the partnership “didn’t make money.” A multi-member LLC has to file Form 1065 even with zero income. The filing threshold isn’t based on profit. It’s based on existence. Late-filing penalties under IRC §6698 run $245 per partner per month, up to 12 months. A two-member LLC that ignores its 1065 for a year is looking at $5,880 in penalties before anyone has earned a dollar.
Forgetting state filings. California charges its $800 minimum franchise tax on every LLC regardless of activity. New York requires Form IT-204-LL with a fee scaled to gross receipts. Texas runs a no-tax-due franchise return that still has to be filed. The federal classification doesn’t get you out of any of these.
None of these are exotic. They’re the standard ways a do-it-yourself LLC return goes sideways. A 30-minute conversation before the first tax year usually prevents all of them.
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Frequently Asked Questions
how are LLCs taxed by the IRS?
By default, the IRS doesn’t recognize an LLC as a separate tax entity — it’s what they call a ‘disregarded entity’ if there’s one owner, or a partnership if there are two or more. A single-member LLC reports income on Schedule C of Form 1040, while a multi-member LLC files Form 1065 and issues K-1s to each member. You’re taxed on your share of profits whether you actually took the money out or not.
Here’s what most owners miss: you’re not locked into the default classification. An LLC can elect to be taxed as an S-Corp by filing Form 2553, or as a C-Corp by filing Form 8832. The S-Corp election can significantly reduce self-employment tax — which runs 15.3% on the first $168,600 of net earnings in 2024 — by splitting income between a reasonable salary and a distribution. That split isn’t a loophole; it’s explicitly sanctioned under IRC §1402(a), but the IRS does scrutinize unreasonably low salaries.
At The Reed Corporation, we walk clients through the default vs. election analysis every time we onboard a new LLC owner. The right structure depends on your net income, how you’re pulling money out, and what you’re planning for the next few years. A quick projection usually makes the answer pretty clear.
does an LLC have to file a tax return if it made no money?
It depends on how your LLC is classified and which state you’re in. A single-member LLC with zero activity technically doesn’t have a federal filing requirement if it has no income, deductions, or credits to report. But a multi-member LLC must file Form 1065 regardless of whether it made a dime — the IRS requires a return as long as the partnership is active. The failure-to-file penalty for Form 1065 is $235 per partner per month, up to 12 months, as of 2024.
The state rules are often stricter, and this is where people get surprised. New York, for example, charges LLCs an annual filing fee that ranges from $25 to $4,500 based on gross income under Tax Law §658. That fee is due even in a year with no profit. California charges a flat $800 minimum franchise tax for LLCs on top of a graduated fee based on gross receipts. So ‘we didn’t make any money’ doesn’t necessarily mean ‘we owe nothing and don’t need to file.’
If your LLC is sitting dormant, it’s still worth a quick check before you assume you’re off the hook. Our team reviews both federal and New York state obligations for clients who’ve had inactive years — sometimes the smarter move is a formal dissolution rather than carrying the entity and its compliance costs indefinitely.
what is the self-employment tax on LLC income?
If your LLC is taxed as a sole proprietorship or partnership, your net profit is subject to self-employment (SE) tax. In 2024, the rate is 15.3% on the first $168,600 of net earnings — that covers 12.4% for Social Security and 2.9% for Medicare. Above that threshold, Social Security drops off but the 2.9% Medicare portion continues, plus an additional 0.9% Medicare surtax kicks in once your income exceeds $200,000 (single) or $250,000 (married filing jointly).
One thing that catches people off guard is that SE tax applies to your share of LLC profits, not just what you actually withdrew. Under IRC §1402, a general partner’s distributive share is SE income even if it stayed in the business account. Limited partners have an exemption, but the IRS has been aggressive about LLC members claiming limited-partner status without meeting the spirit of the rule — Revenue Ruling 69-184 and ongoing Tax Court cases make this a contested area worth being careful about.
One of the most common reasons clients come to us is to figure out whether electing S-Corp status makes sense to cut down the SE tax hit. It’s not the right move for everyone — there are payroll costs and added complexity involved — but for LLC owners clearing $60,000 or more in net profit, it’s often worth running the numbers. We do that analysis as part of our standard engagement.
what tax forms does an LLC need to file?
The forms your LLC files depend entirely on how it’s taxed. Single-member LLCs disregarded for tax purposes report on Schedule C (Form 1040) and Schedule SE if net profit exceeds $400. Multi-member LLCs taxed as partnerships file Form 1065 by March 15th and issue Schedule K-1 to each member. If you’ve elected S-Corp status, the LLC files Form 1120-S, also due March 15th. C-Corp elections mean filing Form 1120, due April 15th. Extensions are available — Form 7004 buys you six extra months for business returns.
New York adds its own layer. LLCs doing business in New York must file Form IT-204 (partnership return) or the equivalent based on their federal classification. There’s also the NYC Unincorporated Business Tax (UBT) to consider if you’re operating in the five boroughs — it’s a 4% tax on net income above a $95,000 exemption, and a lot of LLC owners aren’t aware of it until they get a notice. Missing the IT-204 filing triggers penalties separate from any federal penalties.
Getting the right forms filed on time sounds straightforward until you’re dealing with multiple members in different states, a mid-year tax election, or a year where you changed your LLC’s structure. That’s where having a CPA who knows both federal and New York requirements saves real money. We handle the full filing stack for our LLC clients so nothing falls through the cracks.
should my LLC be taxed as an S-Corp to save on taxes?
The S-Corp election can reduce your self-employment tax bill, but it’s not a blanket win for every LLC. Here’s how it works: instead of paying SE tax on all your net profit, you pay yourself a ‘reasonable salary’ — subject to payroll taxes — and take the rest as a distribution that isn’t hit with the 15.3% SE tax. For 2024, if your net profit is $120,000 and your reasonable salary is $60,000, you’re only paying FICA on the $60,000. That can save $9,000 or more annually.
The catch is that S-Corp status comes with real overhead. You’ll need to run actual payroll, file quarterly Form 941s, issue a W-2 to yourself, and file Form 1120-S each year. That means additional accounting and payroll costs — typically $2,000–$4,000 per year depending on complexity. The IRS also watches S-Corp owner salaries closely; IRC §3121 requires compensation to be ‘reasonable,’ and courts have upheld recharacterization of distributions as wages when salaries were too low. The IRS has won cases where shareholders paid themselves nothing.
Whether the election makes sense for you really comes down to your net profit level, your salary expectations, and how much administrative overhead you’re willing to carry. At The Reed Corporation, we run a side-by-side projection before recommending anything — sometimes the math strongly favors an election, and sometimes staying as a default LLC is actually cleaner. Either way, you’ll know exactly what you’re getting into.
Sources and Further Reading
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