A single-member LLC does not file its own federal tax return. The IRS treats it as a disregarded entity, so you report all business profit on Schedule C of your personal Form 1040, calculate 15.3% self-employment tax on Schedule SE, and pay regular income tax on what remains after deductions. If you expect to owe $1,000 or more for the year, you also make four estimated payments with Form 1040-ES.
Key takeaways:
When you form an LLC with one owner, the IRS classifies it as a "disregarded entity" by default. The LLC is ignored for federal income tax purposes: all income, expenses, profits, and losses are reported on your personal tax return.
Your LLC does not file its own tax return. There is no separate corporate return, no partnership return, no Form 1120 or 1065. Everything goes on your Form 1040 via Schedule C.
| What Changes | What Doesn't Change |
|---|---|
| You have liability protection | Tax filing is the same as sole proprietor |
| You have a formal business entity | Same self-employment tax rate |
| You can open a business bank account | Same income tax rates |
| You have an operating agreement | Same Schedule C filing |
The LLC gives you legal protection. It does not, by default, change how you're taxed. You pay the same taxes whether you're a sole proprietor or a single-member LLC.
The exception: If you file Form 8832 or Form 2553, you can elect different tax treatment (C Corp or S Corp). See our S Corp vs LLC guide for details on when that makes sense.
Legal citation: IRS Publication 3402 and Treas. Reg. §301.7701-3(b)(1)(ii) establish default disregarded entity treatment.
Before touching any tax forms, assemble:
Schedule C has five parts. Here's what goes where:
Part I: Income
Part II: Expenses Common categories on Schedule C:
| Line | Category | Examples |
|---|---|---|
| 8 | Advertising | Google Ads, Facebook ads, website hosting |
| 10 | Car and truck expenses | Business mileage or actual vehicle costs |
| 11 | Commissions and fees | Contractor payments, platform fees |
| 13 | Depreciation | Equipment, furniture (Form 4562) |
| 15 | Insurance | Business liability, professional insurance |
| 17 | Legal and professional | CPA fees, attorney fees, bookkeeping |
| 18 | Office expense | Supplies, software subscriptions |
| 22 | Supplies | Materials used in your business |
| 24a | Travel | Flights, hotels for business trips |
| 24b | Meals | Business meals (50% deductible) |
| 25 | Utilities | Business portion of phone, internet |
| 27a | Other expenses | Anything that doesn't fit above |
| 30 | Home office | Form 8829 or simplified method |
Line 31 (net profit or loss): This number flows to your Form 1040 and Schedule SE.
For detailed line-by-line instructions, see our Schedule C guide.
Self-employment tax is your contribution to Social Security and Medicare. As a W-2 employee, your employer pays half. As a single-member LLC owner, you pay both halves.
Worked example at $75,000 net profit:
Net earnings from self-employment: $75,000 × 92.35% = $69,263 Self-employment tax: $69,263 × 15.3% = $10,597
The 92.35% multiplier (100% minus the 7.65% employer-equivalent portion) accounts for the fact that employees don't pay income tax on the employer's share of FICA. In 2026, the 12.4% Social Security portion applies only to the first $184,500 of net earnings; the 2.9% Medicare portion has no cap.
Half of your SE tax is deductible. You'll deduct $5,299 on Schedule 1, Line 15, which reduces your adjusted gross income (AGI).
For detailed SE tax calculations, see our guide on Schedule SE.
Legal citation: IRC §1401 establishes self-employment tax rates. IRC §164(f) allows the deduction for half of SE tax.
After self-employment tax, calculate your income tax. Continuing the $75,000 example for a single filer with no other income:
| Step | Amount |
|---|---|
| Net profit from Schedule C | $75,000 |
| Minus half of SE tax (Schedule 1, Line 15) | −$5,299 |
| Adjusted gross income (AGI) | $69,701 |
| Minus 2026 standard deduction (single) | −$16,100 |
| Income before QBI deduction | $53,601 |
| Minus QBI deduction | −$10,720 |
| Taxable income | $42,881 |
| Federal income tax (2026 brackets) | $4,898 |
The QBI deduction here is 20% of taxable income before QBI ($53,601 × 20% = $10,720), because that cap is lower than 20% of qualified business income ($69,701 × 20% = $13,940). The 2026 tax comes out to 10% on the first $12,400 plus 12% on the remaining $30,481 (Rev. Proc. 2025-32 brackets).
Total federal tax: $10,597 SE tax + $4,898 income tax = $15,495, an effective rate of about 20.7% on $75,000 of profit.
Do LLC owners need to pay quarterly taxes? Yes, if you expect to owe $1,000 or more for the year after withholding and credits. The IRS expects payment as you earn income, not in one lump sum in April.
2026 estimated tax deadlines:
| Quarter | Income Period | Payment Due |
|---|---|---|
| Q1 | January-March | April 15, 2026 |
| Q2 | April-May | June 15, 2026 |
| Q3 | June-August | September 15, 2026 |
| Q4 | September-December | January 15, 2027 |
Use Form 1040-ES to calculate and submit payments.
Safe harbor rule: To avoid estimated tax penalties, pay at least 100% of your prior year's tax liability (110% if your AGI exceeded $150,000) in four equal quarterly installments. Our quarterly estimated taxes guide covers the calculation methods, payment options, and penalty rules in full.
Use our Quarterly Tax Calculator to estimate your payments.
Your single-member LLC can deduct all ordinary and necessary business expenses. These deductions directly reduce your net profit, lowering both your self-employment tax and income tax.
1. Home Office Deduction
If you use a dedicated space in your home regularly and exclusively for business:
For a full breakdown, see our home office deduction guide.
2. Self-Employed Health Insurance
Deduct 100% of health insurance premiums for yourself, your spouse, and dependents. This is an "above the line" deduction that reduces your AGI, not just your Schedule C profit.
See our health insurance deduction guide.
3. Retirement Contributions
| Plan Type | 2026 Max Contribution (Notice 2025-67) |
|---|---|
| SEP IRA | 25% of net earnings, up to $72,000 |
| Solo 401(k) | $24,500 employee deferral + employer contributions (combined cap $72,000) |
| SIMPLE IRA | $17,000 + employer match |
| Traditional IRA | $7,500 ($8,600 if 50+) |
4. Vehicle Expenses
Choose one method:
5. Professional Services
CPA fees, legal fees, bookkeeping services, and tax preparation costs are fully deductible.
You pay yourself with an owner's draw: a plain transfer from the business bank account to your personal account. A draw is not a salary, is not a deductible expense, and does not change the tax you owe. You are taxed on the LLC's full net profit whether you draw $10,000 of it or all of it.
Do not run W-2 payroll for yourself unless the LLC has elected S corporation taxation on Form 2553. For draw schedules, reasonable-salary rules, and worked examples of each method, see our guide on how to pay yourself from an LLC.
A single-member LLC doesn't always need an Employer Identification Number (EIN), but you should get one anyway. You'll need it if you:
Apply for free at IRS.gov/EIN. For more details, see our EIN guide.
Not sure whether your LLC already has an EIN? Check the CP 575 confirmation letter the IRS mailed when the number was issued, or look at a prior tax filing, bank account application, or state license. If you can't find it, call the IRS Business & Specialty Tax Line at 800-829-4933 and request Letter 147C, which confirms your EIN in writing.
Open a dedicated business bank account and business credit card. This is critical for:
Keep business records for at least:
Your federal filing is only part of the picture. Most states have additional requirements:
Most states tax LLC income on your personal state return, just like the federal government. Nine states have no income tax: Alaska, Florida, Nevada, New Hampshire (dividends/interest only), South Dakota, Tennessee, Texas, Washington, and Wyoming.
| State | Annual Fee | Notes |
|---|---|---|
| California | $800 minimum | Franchise tax regardless of income (details below) |
| New York | $9 biennial statement | Plus annual filing fee (minimum $25, Form IT-204-LL) |
| Texas | $0 annual | Franchise tax only above $2.65M revenue (2026 reports) |
| Florida | $138.75 | Annual report fee |
| Delaware | $300 | Annual franchise tax |
Check our LLC Annual Tax and Fee Calculator for your state's specific costs.
California is the state where "my LLC doesn't file its own return" stops being fully true. A California single-member LLC files nothing separate with the IRS, but it has three obligations to the Franchise Tax Board (FTB):
1. The $800 annual LLC tax. Every LLC organized in or doing business in California owes $800 per year, even with zero income. Pay it with FTB Form 3522 (LLC Tax Voucher) by the 15th day of the 4th month of your tax year: April 15 for calendar-year LLCs. New LLCs owe the $800 in their first year too — the first-year exemption expired after the 2023 tax year and now applies only to LLCs formed in 2021-2023.
2. Form 568 (Limited Liability Company Return of Income). This California return is filed every year in addition to your federal Schedule C. For a calendar-year single-member LLC owned by an individual, Form 568 is due April 15, the same day as your personal return.
3. The LLC fee, if California total income exceeds $250,000. This fee is on gross income, not profit:
| California total income | LLC fee |
|---|---|
| $250,000 - $499,999 | $900 |
| $500,000 - $999,999 | $2,500 |
| $1,000,000 - $4,999,999 | $6,000 |
| $5,000,000 or more | $11,790 |
Estimate and pay the fee with FTB Form 3536 by June 15 (the 15th day of the 6th month). Underpaying triggers FTB penalties and interest.
Also file a Statement of Information with the California Secretary of State every two years; skipping it brings a $250 penalty. Source: FTB, Limited Liability Company.
Some cities and counties impose additional business taxes, gross receipts taxes, or business license fees. Check with your local jurisdiction.
Problem: A single-member LLC owner waits until April 15 to pay all taxes for the year.
Impact: Underpayment penalty at the IRS interest rate, currently 7% (Q3 2026). On a $20,000 tax bill paid a year late, that's roughly $900 in avoidable penalties.
Solution: Calculate your estimated tax liability and pay quarterly. The IRS safe harbor: pay 100% of last year's tax in four equal payments (110% if AGI exceeded $150,000).
Problem: Single-member LLC owners don't realize they qualify for the 20% QBI deduction, or their tax software miscalculates it.
Impact: Overpaying income tax by up to 20% of qualified business income. In the $75,000 example above, the QBI deduction is $10,720, worth about $1,286 at the 12% bracket.
Solution: Verify Form 8995 or 8995-A is included in your return. The QBI deduction applies to all single-member LLCs, subject to phase-in limits starting at $201,750 of taxable income for single filers in 2026.
Problem: Deducting the full SE tax amount instead of half, or skipping the deduction entirely because it isn't a Schedule C expense.
Impact: In the $75,000 example, the deduction is exactly $5,299 on Schedule 1, Line 15. Doubling it understates AGI by $5,299 (an audit flag); skipping it overstates taxable income and costs about $636 at the 12% bracket.
Solution: Take Schedule SE, Line 13, and carry it to Schedule 1, Line 15. It reduces AGI, not Schedule C profit.
Problem: Filing federal taxes correctly but missing state annual reports, franchise taxes, or the California Form 568 and $800 payment.
Impact: Late fees, penalties, or administrative dissolution of your LLC — losing your liability protection.
Solution: Calendar your state's deadlines (for California: FTB 3522 by April 15, FTB 3536 by June 15, Form 568 with your return). Review our guide on LLC tax deadlines.
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| Item | 2026 Amount |
|---|---|
| Self-employment tax rate | 15.3% (12.4% SS + 2.9% Medicare) |
| Social Security wage base | $184,500 |
| Standard deduction (single) | $16,100 (Rev. Proc. 2025-32) |
| QBI deduction | Up to 20% of QBI; phase-in starts at $201,750 (single) |
| Standard mileage rate | 72.5 cents/mile (Notice 2026-10) |
| Home office simplified method | $5/sq ft (max $1,500) |
| Additional Medicare tax | 0.9% on earnings over $200,000 |
| Underpayment interest rate | 7% (Q3 2026) |
| California LLC annual tax | $800 (FTB 3522) |
Single-member LLC taxes follow the same mechanics as sole proprietor taxes: Schedule C, Schedule SE, and quarterly estimated payments. The LLC structure adds liability protection without changing your tax obligations by default.
Track expenses throughout the year, make the four estimated payments, and claim the home office, vehicle, health insurance, retirement, and QBI deductions you're entitled to. As your profit grows past $50,000-$60,000, evaluate whether an S Corp election could reduce your self-employment tax further.
Disclaimer
This article provides general information about single-member LLC taxation and should not be considered tax advice. Tax laws and rates change annually, and state tax obligations vary significantly. The calculations shown use 2026 federal rates and may not reflect your specific situation including state taxes, credits, or other factors. For advice specific to your situation, consult with a qualified tax professional.
Tax Year: 2026 Last Updated: July 7, 2026
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