LLC vs S-Corp in 2026: Which Structure Actually Saves You More Money?
Tax Day just passed. Thousands of founders who filed as single-member LLCs are realizing they may have overpaid by $3,000-$15,000 or more in self-employment taxes. The LLC vs S-Corp question is one of the highest-stakes financial decisions a small business owner makes. Most get it wrong - either by switching too early and losing money to compliance costs, or by waiting too long and leaving real savings on the table. Here's the actual math for 2026.
What You Actually Pay as an LLC (Default Taxation)
A single-member LLC is taxed as a sole proprietor by default. That means 100% of your net profit flows onto Schedule C and gets hit with self-employment tax before income tax even starts.
The 2026 SE tax rates (IRS, 2026):
- 15.3% on the first $168,600 of net self-employment income (12.4% Social Security + 2.9% Medicare)
- 2.9% on net income above $168,600 (Medicare only, no Social Security cap)
- 0.9% additional Medicare tax on income above $200,000 (single) or $250,000 (married filing jointly)
You deduct half the SE tax from your gross income before calculating income tax, which softens the blow slightly. But the base rate is steep.
Real example at $100,000 net profit: SE tax = $14,130 (15.3% x $92,350 after the deductible portion calculation). Add federal income tax on top of that. A multi-member LLC defaults to partnership taxation and faces the same SE tax problem for each active member.
What Changes With an S-Corp Election
An S-Corp election changes how your income is classified, not how the business operates. You don't form a new entity. You file Form 2553 to have your existing LLC (or C-Corp) taxed as an S-Corp.
The S-Corp tax structure splits your income into two buckets:
- Reasonable salary: Subject to payroll taxes (FICA: 15.3% up to $168,600 wage base, split 50/50 between employee and employer portions - but since you own the business, you pay both)
- Distributions: Profit passed through to you after the salary is paid. Distributions are NOT subject to FICA or self-employment tax.
The savings come from moving as much profit as legally defensible into distributions. At $100,000 net profit with a $60,000 salary and $40,000 in distributions, you pay FICA only on the $60,000. The $40,000 in distributions avoids the 15.3% entirely.
Savings at $100K: FICA on $60K salary = $9,180. SE tax on $100K as LLC = $14,130. Annual savings = $4,950. (IRS, 2026)
The Math Table: LLC vs S-Corp at Every Income Level
The table below assumes a 60/40 split (60% salary, 40% distributions) and uses 2026 FICA rates. S-Corp annual costs include payroll service and incremental accounting fees ($1,800-$3,500/year total).
| Net Profit | SE Tax as LLC | FICA as S-Corp (60% salary) | Gross Tax Savings | Net Savings After Costs |
|---|---|---|---|---|
| $50,000 | $7,065 | $4,590 | $2,475 | -$325 to $675 |
| $75,000 | $10,597 | $6,885 | $3,712 | $212 to $1,912 |
| $100,000 | $14,130 | $9,180 | $4,950 | $1,450 to $3,150 |
| $150,000 | $20,819 | $13,770 | $7,049 | $3,549 to $5,249 |
| $200,000 | $24,414 | $18,360 | $6,054 | $2,554 to $4,254 |
| $300,000 | $27,492 | $25,746 | $1,746 | -$1,754 to -$54 |
Note: At $200K+, the Social Security wage base cap ($168,600) reduces the LLC's SE tax advantage because both structures hit the cap on the salary portion. At very high incomes, the S-Corp benefit narrows. The sweet spot is $75,000-$200,000 in net profit.
The Break-Even Point
S-Corp status is not free. The real costs to factor in:
- Payroll service: $50-$150/month ($600-$1,800/year). You must run payroll to pay yourself a W-2 salary. Gusto, QuickBooks Payroll, and ADP all work. You cannot pay yourself in cash or random transfers as an S-Corp owner.
- Incremental accounting cost: An S-Corp return (Form 1120-S) costs $800-$2,500/year from a CPA, compared to $400-$800 for a basic LLC return. Add $400-$1,200 in additional work. Budget $500-$1,700 more per year for accounting.
- State filing fees: Vary from $0 (most states) to $800 (California). Some states charge an annual S-Corp fee or minimum tax separate from federal treatment.
Total additional annual cost: $1,100-$3,500 depending on state and provider.
At $50,000 net profit, the gross savings are $2,475. After S-Corp costs, you may net nothing or actually lose money. Below roughly $60,000-$70,000 in consistent annual net profit, the S-Corp election rarely makes financial sense. Above $80,000, it almost always does.
The Reasonable Salary Rule
The IRS requires S-Corp owner-employees to pay themselves a "reasonable salary" for services rendered to the business. This is where many owners get into trouble (IRS Revenue Ruling 74-44).
The IRS does not publish a formula for reasonable salary. It looks at what you would pay someone else to do your job. Reference points:
- BLS Occupational Employment Statistics for your role and region (BLS, 2025)
- Industry wage surveys
- What you previously earned as an employee in the same field
Common guidance: a reasonable salary is typically 40-60% of net profit for owner-operators, though this varies by profession. A consultant billing $200/hour cannot claim a $25,000 salary and take $175,000 in distributions. The IRS audits this and the penalties are real: back taxes, interest, and a 100% penalty on uncollected payroll taxes.
Setting the salary too low is the single biggest S-Corp audit trigger. Work with a CPA to establish a defensible number before making the election.
How to Elect S-Corp Status
The mechanics are simpler than most people expect:
- File Form 2553 with the IRS. The form itself is free to file. You can download it from irs.gov.
- Meet the deadline: To take effect for the current tax year, file by March 15 (for calendar-year businesses) or within 75 days of forming your entity. For a mid-year switch to take effect in 2026, the deadline has passed - the election will apply starting January 1, 2027 unless you qualify for late election relief.
- Late election relief: The IRS grants relief for late Form 2553 filings if you have reasonable cause. Rev. Proc. 2013-30 outlines the process. Many tax professionals file retroactive elections routinely with success.
Important: you are not forming an "S-Corp" as a separate entity type. S-Corp is a tax classification, not a state-level legal structure. Your LLC remains an LLC under state law. You are electing how the IRS treats your LLC for federal tax purposes.
State-Level Complications
Federal S-Corp treatment does not automatically carry to every state. Know your state's rules before electing.
- California: Charges an $800 minimum franchise tax on S-Corps plus 1.5% of net income (California Franchise Tax Board, 2026). At $100,000 net income, that's $2,300 in state-level S-Corp cost, which can wipe out the federal savings for many small businesses. California founders should model this carefully.
- Tennessee: Has a franchise and excise tax that treats S-Corps differently from LLCs. The net effect on your tax bill depends on income level.
- New Hampshire: Does not have a personal income tax, but has a Business Profits Tax and Business Enterprise Tax that affect S-Corp distributions. The calculus is different from income-tax states.
- Texas: No personal income tax, but has a franchise (margin) tax that applies to S-Corps. Small businesses often fall below the threshold, but verify.
- New York: Recognizes federal S-Corp elections but has its own S-Corp filing fee schedule based on receipts.
Always confirm your state's S-Corp treatment with a CPA licensed in that state before filing Form 2553.
When to Stay an LLC (Default Taxation)
S-Corp status is not always the right move. Stay with LLC default taxation if:
- Net profit is under $60,000-$70,000/year. The compliance costs typically exceed the tax savings at this level.
- You're in California or another state with hostile S-Corp rules. Run the state-specific math first. The state may claw back what you save federally.
- You plan to sell the business soon. S-Corp basis and built-in gains rules can complicate business sales, especially within 10 years of converting from a C-Corp. Discuss with an M&A attorney.
- You have foreign investors or more than 100 shareholders. S-Corps cannot have non-resident alien shareholders and are limited to 100 shareholders. If either applies, S-Corp status is legally unavailable.
- Your income is inconsistent. If profit varies widely year to year, the fixed cost of S-Corp compliance may not be justified. S-Corp makes most sense with steady, predictable net income above the break-even threshold.
Switching from LLC to S-Corp Mid-Year
You can elect S-Corp status at any point, but the timing affects your tax year.
If you file Form 2553 after the March 15 deadline but before December 31, the election typically takes effect January 1 of the following year. For the transition year, you file two short-period returns: one as an LLC (January through the switch date), one as an S-Corp (switch date through December 31).
Retroactive elections for the current calendar year are possible if filed by March 15 of the following year. For example: to have S-Corp treatment for all of 2026, you can file Form 2553 any time in 2026 or by March 15, 2027, using the late election procedures under Rev. Proc. 2013-30. This is a common and well-established approach.
Pro-rated calculations in transition years add complexity. Budget for extra accounting time in your switch year.
The Full Cost of Making the Switch
Here's what switching from LLC default to S-Corp actually costs:
| Cost Item | One-Time | Annual Ongoing |
|---|---|---|
| IRS Form 2553 filing | $0 | $0 |
| CPA advice on salary and structure | $300-$800 | - |
| Payroll service setup | $0-$500 | $600-$1,800 |
| Incremental accounting (1120-S vs basic LLC) | - | $500-$1,700 |
| State S-Corp fees (varies) | $0-$800 | $0-$800 |
| Total | $300-$2,100 | $1,100-$4,300 |
At $80,000+ in net profit, the gross annual tax savings ($4,500-$6,000 or more) comfortably cover these costs. At $100,000 in net profit, you're typically netting $2,000-$4,000 in real annual savings after all costs. Year one payback on setup costs is virtually guaranteed.
For cleaning business owners and other service-based operators who reach consistent six-figure revenue, the S-Corp election is usually the highest-return tax move available.
Related Reading
- Our LLC vs sole proprietorship cost breakdown covers the foundational question of whether to form an LLC at all.
- Our 2026 startup tax deductions guide covers Section 179, home office, vehicle, and other first-year deductions that apply regardless of entity structure.
- Restaurant founders should note that S-Corp works differently when you have multiple employees on payroll - the "reasonable salary" question becomes more complex.
The Bottom Line
Elect S-Corp status if your net profit consistently exceeds $70,000 per year and you are not in a state that eliminates the savings with its own S-Corp taxes. Below that threshold, stay with LLC default taxation. The break-even math is not complicated - the mistake is not doing the math at all.
One-time CPA advice costs $300-$800. A good small business CPA who specializes in entity selection will pay for themselves in the first year, often several times over. The IRS gives you the tool. It's worth understanding how to use it correctly.
If you're planning a new venture and haven't settled on structure yet, start with our LLC vs sole proprietorship breakdown first, then return to this guide once you're generating consistent profit. Structure decisions made before you have real revenue data are often made too early.