LLC Taxes: Complete Guide 2026 (How LLCs Are Taxed, Pass-Through, S-Corp Election)
By Frédéric Deltour, Entrepreneur and Business Consultant, 22+ years forming and operating companies.
Published: May 6, 2026 · Last updated: May 6, 2026
Last verified: May 2026. Tax rates and filing deadlines confirmed from IRS.gov, Publication 3402, and IRS Schedule SE instructions.
The most common misconception about LLC taxes is that forming an LLC automatically reduces what you owe. It does not, at least not by default. A single-member LLC filing Schedule C pays exactly the same federal taxes as a sole proprietor with the same income. The tax advantage only comes from an S-Corp election, and that election only makes financial sense above a certain income threshold.
This guide covers the complete LLC tax picture: what pass-through taxation means in practice, how self-employment tax is calculated, every relevant form and filing deadline, the S-Corp election math at each income level, quarterly estimated taxes, and the deductions most LLC owners miss.
- Pass-through taxation: what it actually means
- How single-member LLCs are taxed
- How multi-member LLCs are taxed
- Self-employment tax: the full calculation
- All four LLC tax classification options
- S-Corp election: how it works and when it makes sense
- S-Corp vs default LLC: the math at every income level
- Quarterly estimated taxes: deadlines and how to calculate
- Filing deadlines for every LLC tax classification
- Key LLC tax deductions in 2026
- State LLC taxes: franchise taxes and annual fees
- Our analysis: total tax burden by LLC structure and income
- When S-Corp election is the wrong move
- FAQ
Pass-Through Taxation: What It Actually Means
Pass-through taxation means the business entity itself pays no federal income tax. Instead, profits and losses "pass through" to the owners' personal tax returns, where they are taxed at the owner's individual rate. This contrasts with C-corporations, which pay corporate income tax on profits (currently 21%) and then owners pay personal income tax again on dividends, creating double taxation.
For LLC owners, pass-through taxation is both an advantage and a source of confusion. The advantage: no double taxation. The confusion: many owners do not realize that "pass-through" does not mean "tax-free." Pass-through income is taxed at the owner's marginal rate, plus self-employment tax on top. At high income levels, the combined federal burden for an LLC owner can approach 50% before state taxes.
How Single-Member LLCs Are Taxed
A single-member LLC is classified as a "disregarded entity" for federal income tax purposes under IRS Treasury Regulations Section 301.7701-3. The LLC is disregarded: it files no separate federal income tax return. The IRS treats the owner and the LLC as one and the same for income tax purposes.
All business income and expenses are reported on Schedule C (Profit or Loss from Business), which attaches to the owner's personal Form 1040. Net profit from Schedule C flows to Form 1040 as self-employment income. The owner then pays:
- Self-employment tax on 92.35% of net profit (see calculation below)
- Ordinary income tax at the owner's marginal rate on net profit, reduced by the SE tax deduction (50% of SE tax is deductible as an adjustment on Form 1040)
- Any applicable state income taxes on the owner's share of LLC income
The single-member LLC files no Form 1065, no Form 1120, and no Form 1120-S unless it has made an election to change its default tax classification. The filing deadline is April 15 (the personal return deadline), with an extension available to October 15.
How Multi-Member LLCs Are Taxed
A multi-member LLC (two or more owners) is classified as a partnership for federal income tax purposes by default. The LLC files Form 1065 (U.S. Return of Partnership Income) by March 15 each year. Form 1065 is an informational return: it reports the LLC's total income, deductions, and each member's share, but the LLC pays no tax itself.
The LLC then issues a Schedule K-1 to each member. The K-1 reports the member's allocable share of income, deductions, credits, and other items. Each member includes their K-1 income on their personal Form 1040 and pays income tax and self-employment tax accordingly.
Self-Employment Tax: The Full Calculation
Self-employment tax is the mechanism by which LLC owners (and all self-employed people) pay into Social Security and Medicare. W-2 employees split these taxes with their employers: the employee pays 7.65% and the employer pays 7.65%. Self-employed LLC owners pay both halves, totaling 15.3%.
The calculation per IRS Schedule SE:
- Start with net profit from Schedule C (or your K-1 share from Form 1065)
- Multiply by 92.35% (0.9235). This adjustment mirrors the employer deduction an employer would take for the employer-side FICA contribution
- Apply 12.4% Social Security rate to the result, up to the annual wage base
- Apply 2.9% Medicare rate to the full SE tax base (no income cap)
- Apply 0.9% additional Medicare surtax to SE income above $200,000 (single) or $250,000 (married filing jointly)
- You may deduct 50% of the total SE tax as an adjustment on Form 1040 Line 15, reducing your taxable income
| Net Profit | SE Tax Base (x 92.35%) | Social Security (12.4%) | Medicare (2.9%) | Total SE Tax |
|---|---|---|---|---|
| $30,000 | $27,705 | $3,435 | $804 | $4,239 |
| $60,000 | $55,410 | $6,871 | $1,607 | $8,478 |
| $100,000 | $92,350 | $11,451 | $2,678 | $14,130 |
| $150,000 | $138,525 | Approaches SS wage base cap | $4,017 | ~$19,500+ |
Figures illustrative. Social Security wage base changes annually; verify current limit at IRS.gov. The 0.9% additional Medicare surtax not shown; applies above $200,000 (single). Always calculate with Schedule SE or a CPA for your actual figures.
All Four LLC Tax Classification Options
Disregarded Entity (Default: Single-Member)
Files Schedule C with Form 1040. No separate LLC return. All profit subject to self-employment tax. Simplest compliance.
IRS Form: Schedule C (Form 1040)
Deadline: April 15
Partnership (Default: Multi-Member)
LLC files Form 1065. Issues K-1 to each member. All profit subject to SE tax on active members' shares. More complex compliance.
IRS Form: Form 1065 + Schedule K-1
Deadline: March 15
S-Corporation (Elected)
LLC files Form 1120-S. Owner pays themselves W-2 salary (SE tax applies). Remaining profit taken as distribution (no SE tax). Best for profits above ~$60K–80K.
IRS Form: Form 1120-S + Schedule K-1
Deadline: March 15
Election: Form 2553 by March 15
C-Corporation (Elected)
LLC elects C-Corp taxation via Form 8832. Entity pays 21% corporate tax. Owners pay personal income tax on dividends (double taxation). Rarely appropriate for small businesses.
IRS Form: Form 1120
Deadline: April 15
Election: Form 8832
S-Corp Election: How It Works and When It Makes Sense
The S-Corp election changes how LLC income is taxed, not the LLC's legal structure. The LLC remains an LLC under state law. Only the IRS tax treatment changes.
Under S-Corp taxation, the owner splits income into two components:
- W-2 Salary: The owner must pay themselves a "reasonable compensation" for the work they perform in the business. This salary is subject to FICA payroll taxes at 15.3% (split between employee and employer halves, both ultimately paid by the owner).
- Distributions: Remaining profit above the reasonable salary can be taken as a shareholder distribution. Distributions are subject to ordinary income tax but not to self-employment or payroll taxes.
The savings come from the distribution portion. If your LLC earns $120,000 and you pay yourself a $70,000 reasonable salary, you pay 15.3% payroll taxes on $70,000, not on the full $120,000. The $50,000 distribution escapes the 15.3% SE tax entirely.
To make the S-Corp election, file IRS Form 2553 (Election by a Small Business Corporation) with the IRS. For an election to apply to the full 2026 tax year, Form 2553 must be filed by March 15, 2026. New businesses have 2 months and 15 days from their formation date to file and have the election apply from the date of formation.
A single-member LLC that has not already been classified as a corporation must also file Form 8832 (Entity Classification Election) to elect corporate status first, then Form 2553 for S-Corp treatment. In practice, Form 2553 alone is often sufficient when filed timely, as the IRS treats it as a deemed election on Form 8832 simultaneously.
S-Corp vs Default LLC: The Math at Every Income Level
S-Corp Election: Net Savings Analysis by Income Level (2026)
We modeled the net annual savings from electing S-Corp status at different income levels, assuming a salary set at 60% of net profit, payroll processing costs of $1,500/year, and additional CPA fees of $1,000/year for Form 1120-S preparation versus a Schedule C return.
| Net LLC Profit | SE Tax (Default) | Payroll Tax on Salary (S-Corp) | Gross SE Savings | Compliance Costs (~$2,500) | Net Annual Savings | Verdict |
|---|---|---|---|---|---|---|
| $40,000 | $5,652 | $3,672 (60% salary = $24K) | $1,980 | $2,500 | -$520 (net loss) | Skip |
| $60,000 | $8,478 | $5,508 (60% salary = $36K) | $2,970 | $2,500 | +$470 | Marginal |
| $80,000 | $11,304 | $6,732 (60K salary) | $4,572 | $2,500 | +$2,072 | Worthwhile |
| $100,000 | $14,130 | $8,478 (60K salary) | $5,652 | $2,500 | +$3,152 | Strong case |
| $150,000 | ~$19,500 | $9,945 (65K salary) | ~$9,555 | $2,500 | +$7,055 | Decisive |
| $200,000 | ~$22,500 | $10,914 (70K salary) | ~$11,586 | $2,500 | +$9,086 | Decisive |
SE tax on 92.35% of net profit at 15.3%. S-Corp salary assumed at 60% of net profit or a fixed reasonable salary at higher income levels. Compliance cost estimate $2,500/year (variable). Social Security wage base cap not applied in this simplified model. Actual savings depend on salary determination, payroll software choice, and your CPA's fees. This is for illustration; consult a CPA before making the election.
Quarterly Estimated Taxes: Deadlines and How to Calculate
LLC owners who expect to owe $1,000 or more in federal taxes for the year must make quarterly estimated tax payments using IRS Form 1040-ES. There is no employer withholding taxes from LLC income, so the owner is responsible for paying throughout the year.
The IRS safe harbor rule: you avoid underpayment penalties if you pay either (a) 100% of last year's total tax liability, or (b) 90% of the current year's tax liability, whichever is smaller. If your prior-year adjusted gross income exceeded $150,000, the safe harbor threshold increases to 110% of the prior-year tax.
2026 quarterly estimated tax due dates:
Simple calculation method: Estimate your annual net profit, multiply by 15.3% for SE tax, add your estimated income tax (use your marginal rate from prior year as a starting point), subtract any credits, then divide by 4 for equal quarterly payments. Pay at IRS.gov/payments or via EFTPS (Electronic Federal Tax Payment System).
Filing Deadlines for Every LLC Tax Classification
| LLC Tax Classification | IRS Form | 2026 Due Date | Extension Available |
|---|---|---|---|
| Single-member LLC (disregarded entity) | Schedule C with Form 1040 | April 15, 2026 | October 15, 2026 |
| Multi-member LLC (partnership) | Form 1065 + Schedule K-1 to members | March 15, 2026 | September 15, 2026 |
| LLC taxed as S-Corp | Form 1120-S + Schedule K-1 to members | March 15, 2026 | September 15, 2026 |
| LLC taxed as C-Corp | Form 1120 | April 15, 2026 | October 15, 2026 |
| S-Corp election for 2026 (existing LLC) | Form 2553 | March 15, 2026 | Late election relief available |
| Quarterly estimated taxes | Form 1040-ES | Apr 15, Jun 16, Sep 15, Jan 15 | Penalties apply for underpayment |
Key LLC Tax Deductions in 2026
LLC owners filing Schedule C can deduct ordinary and necessary business expenses from gross revenue to arrive at net profit. The most commonly missed deductions:
| Deduction | 2026 Details | Common Mistake |
|---|---|---|
| Home office | Business-use percentage of rent/mortgage interest, utilities, insurance. Simplified method: $5/sq ft up to 300 sq ft ($1,500 max) | Skipping it because it "sounds complicated" |
| Vehicle mileage | 72.5 cents per mile for business use in 2026 (standard rate). Or actual expense method. | Not tracking mileage throughout the year |
| Health insurance premiums | Self-employed owners deduct 100% of health, dental, and vision premiums as an adjustment on Form 1040 (not Schedule C) | Taking it as a Schedule C deduction instead of a 1040 adjustment |
| Retirement contributions | Solo 401(k): up to $69,000 in 2026 ($76,500 if 50+). SEP-IRA: up to 25% of net earnings. Contributions reduce taxable income directly. | Not contributing at all, or undercontributing |
| SE tax deduction | Deduct 50% of total self-employment tax paid as an adjustment on Form 1040 Line 15 | Missing the deduction entirely |
| QBI deduction | Up to 20% of qualified business income under Section 199A (made permanent by OBBBA, signed July 4, 2025). Phase-out begins above $201,775 (single) / $403,500 (married) for service businesses. | Assuming it expired or does not apply to service businesses below the threshold |
| Startup costs | Deduct up to $5,000 in the year of formation. Remaining startup costs amortized over 15 years. Deduction phases out above $50,000 in total startup costs. | Expensing all startup costs in year one beyond the $5,000 limit |
| Professional services | CPA fees, legal fees, and bookkeeping costs are fully deductible business expenses | Not tracking these throughout the year |
State LLC Taxes: Franchise Taxes and Annual Fees
Federal pass-through taxation is the same across all states. State-level LLC taxation varies significantly and is an important factor in formation state selection.
| State | Annual LLC Tax/Fee | Notes |
|---|---|---|
| California | $800 minimum franchise tax per year | Applies even if the LLC has zero income. Additional gross receipts tax above $250,000. |
| New York | $25 biennial fee + mandatory publication ($400–$2,000) | Publication requirement in the county of principal office. One-time cost at formation. |
| Delaware | $300/year franchise tax | Flat fee regardless of revenue. Plus state income tax on Delaware-earned income. |
| Texas | No annual report for most LLCs. Franchise tax applies above $2.47M revenue (2024–2025 threshold). | No personal state income tax. Most small LLCs owe $0 in Texas franchise tax. |
| Wyoming | $60/year annual report | No state income tax. Lowest ongoing cost among popular formation states. |
| Florida | $138.75/year annual report | No personal state income tax. |
| New Mexico | None (no annual report) | Lowest total state cost. Only state with no annual report requirement. |
Note: Owners always pay state income tax in the state where they live and where income is earned, regardless of where the LLC is formed. Forming in Wyoming does not reduce state income taxes if you live and work in New York.
When S-Corp Election Is the Wrong Move
- Net profit below $60,000. The self-employment tax savings will likely not cover the payroll processing costs and additional CPA fees. Running Schedule C is cheaper and simpler.
- Inconsistent or unpredictable income. S-Corp owners must run payroll and issue W-2s even in low-revenue months. If your income is lumpy or seasonal, the fixed compliance overhead becomes painful.
- You plan to add investors or sell equity. S-Corps have strict limitations: no more than 100 shareholders, all shareholders must be U.S. citizens or resident individuals, and only one class of stock is allowed. These restrictions make S-Corp status incompatible with most venture-backed growth plans.
- You have foreign owners. S-Corp eligibility requires shareholders to be U.S. citizens or resident individuals. Foreign owners disqualify the LLC from S-Corp status entirely.
- You cannot determine a defensible reasonable salary. The IRS's reasonable compensation requirement is real and enforced. If your profession has no salary comparables or you would struggle to justify your salary determination in an audit, the risk profile of the S-Corp election increases.
Why I Choose Northwest Registered Agent
- Remarkable Customer Support: real people, not bots, every time
- Caring & Privacy-Focused: their address on your public filings, never yours
- Lightning-Fast Formation: most states filed within 1–3 business days
- Incredible Value: $39 formation, registered agent free year one
- Clear & Transparent: no hidden fees, no upsells at checkout
FAQ
How is an LLC taxed?
By default, LLCs are pass-through entities: the LLC itself pays no federal income tax. A single-member LLC reports income on Schedule C with the owner's Form 1040. A multi-member LLC files Form 1065 and issues Schedule K-1 to each member. Owners pay self-employment tax (15.3%) and personal income tax on their share of profits.
What is the self-employment tax rate for LLC owners in 2026?
The self-employment tax rate is 15.3% (12.4% Social Security + 2.9% Medicare), calculated on 92.35% of net profit. An additional 0.9% Medicare surtax applies to SE income above $200,000 (single) or $250,000 (married filing jointly).
Do LLCs pay corporate tax?
No, by default. Single-member and multi-member LLCs are pass-through entities and do not pay federal corporate income tax. An LLC can elect C-Corp taxation by filing Form 8832, which subjects the entity to the 21% flat corporate tax rate, creating double taxation when owners also pay income tax on dividends.
When should an LLC elect S-Corp status?
The S-Corp election typically makes financial sense when net LLC profit exceeds $60,000 to $80,000 per year. Below that threshold, the compliance costs (payroll processing, additional CPA fees) typically exceed the self-employment tax savings from splitting income between salary and distributions.
What is the LLC tax filing deadline for 2026?
Single-member LLCs (Schedule C) file with the personal return by April 15, 2026 (extension to October 15). Multi-member LLCs (Form 1065) file by March 15, 2026 (extension to September 15). LLCs taxed as S-Corps (Form 1120-S) also file by March 15, 2026.
Related Guides
- LLC vs S-Corp Tax Comparison 2026
- Single-Member LLC: Complete 2026 Guide
- How to Get an EIN for Free
- Best State to Form an LLC in 2026
- LLC for Freelancers and Consultants 2026
- How to Form an LLC: Step-by-Step Guide
- LLC Formation Cost: What You'll Actually Pay
- What Is an LLC? Complete Beginner's Guide
- Cheapest States to Form an LLC (2026)
Why I Choose Northwest Registered Agent
After forming 3 LLCs myself and helping clients through the process, I keep coming back to Northwest Registered Agent. Here is why:
- Remarkable Customer Support: Quick, human responses every time.
- Caring & Privacy-Focused: Genuine service with full respect for your privacy.
- Lightning-Fast Formation: Often faster than promised.
- Incredible Value: Prices far below the premium service quality.
- Clear & Transparent: No hidden fees or surprises.
Ready to form your business? Choose Northwest today!
Frédéric has founded and operated businesses across multiple countries, including 3 LLCs formed using Northwest Registered Agent. He holds certifications as a holistic coach and therapist trainer, is a published author, and has been featured in Le Parisien, IMDb, Goodreads, and international encyclopedias.
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