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LLC vs S-Corp: Which Structure Saves You More?

Most self-employed people start with an LLC — it is simple, cheap, and flexible. Once profit crosses roughly $60,000, the S-Corp election can save $3,000–$15,000 per year in self-employment tax. Here is exactly when to make the switch.

Run the numbers with a calculator

LLC vs S-Corp Calculator →Self-Employment Tax Calculator →

First, a key clarification: "LLC vs S-Corp" is not actually a fair comparison. An S-Corp is a federal tax election, not a business structure. You can form an LLC and then elect S-Corp tax status. Most "LLC vs S-Corp" questions are really asking: "Should my LLC be taxed as an S-Corp?" That is what we answer below.

Side-by-Side Comparison

LLC
S-Corp
Formation cost
$50–$500 (state filing)
Same LLC cost + Form 2553
Annual compliance cost
Low — annual report, maybe franchise tax
Higher — payroll, 1120-S, extra bookkeeping
Self-employment tax
Full 15.3% on all profit
Only on "reasonable salary" portion
Income tax on profit
Passes through to owner
Passes through to owner
Payroll required
No
Yes — owner must take W-2 salary
Reasonable compensation rule
N/A
Salary must be market rate
Best at profit below ~$60k
Simpler and roughly equivalent
Admin overhead eats the savings
Best at profit $60k–$150k
Leaves money on the table
Saves $3,000–$10,000/year
Best above $150k profit
Significant overpayment of SE tax
Saves $10,000–$15,000+ annually
Flexibility of ownership
Unlimited members, any entity type
Max 100 shareholders, US citizens/residents only
Retirement account options
Solo 401(k), SEP-IRA
Same, plus W-2 enables higher SEP/401k contributions
State-level treatment
Standard LLC rules
Varies — some states (CA) have franchise taxes or min taxes

Pros & Cons

LLC

PROS

  • ✓Simple formation and paperwork
  • ✓Low annual cost — often under $300/year
  • ✓Maximum flexibility in ownership structure
  • ✓No payroll, no W-2, no extra tax returns
  • ✓Great starter structure for side hustles and new businesses

CONS

  • ✗Full 15.3% self-employment tax on every dollar of profit
  • ✗Quarterly estimated taxes can surprise first-time owners
  • ✗No tax efficiency at higher income levels
  • ✗Less clear separation between owner and business for tax purposes

S-Corporation

PROS

  • ✓Saves 15.3% SE tax on any profit above "reasonable salary"
  • ✓Enables higher retirement contributions via W-2 wages
  • ✓Creates cleaner payroll paper trail
  • ✓Tax savings scale with income
  • ✓Useful for qualifying for mortgages (W-2 income)

CONS

  • ✗Requires payroll setup, W-2, quarterly 941 filings
  • ✗Must pay yourself "reasonable compensation" (IRS audit risk if you do not)
  • ✗Additional tax return (Form 1120-S) + K-1
  • ✗~$1,500–$3,000 annually in extra accounting and payroll costs
  • ✗Some states (California) charge an annual franchise tax

Why This Question Matters: The 15.3% Self-Employment Tax

Self-employed people pay both halves of Social Security and Medicare — 15.3% on top of income tax. On $100,000 of profit, that is $14,130 in SE tax before you even think about federal and state income tax. The S-Corp election reduces this bill by only applying SE tax to your "reasonable salary" portion of the profit; everything else flows out as a distribution free of SE tax.

The Reasonable Compensation Rule

The IRS requires S-Corp owner-employees to pay themselves a "reasonable" W-2 salary — roughly what they would pay an outsider to do the same job. If your business profit is $200,000 and comparable salary for your work is $80,000, you pay:

• $80,000 as W-2 salary (SE tax applies) • $120,000 as distribution (no SE tax)

Savings: $120,000 × 15.3% = $18,360/year

Get reasonable compensation wrong (pay yourself $20k on $200k profit) and you invite an audit. The IRS has been cracking down on this. When in doubt, use salary benchmarking data and err slightly high.

The Break-Even Math

Extra costs of S-Corp election (typical ranges):

• Payroll service: $500–$1,200/year • Additional accountant work (1120-S, payroll filings): $800–$2,000/year • Workers comp or unemployment insurance (varies by state)

Call it $2,000/year in added cost. SE tax savings depend on the gap between salary and total profit:

• $60k profit, $50k salary → $1,530 savings → NET LOSS • $80k profit, $55k salary → $3,825 savings → marginal net win • $120k profit, $75k salary → $6,885 savings → clear win • $200k profit, $90k salary → $16,830 savings → enormous win

Below $60k profit, stay an LLC. Above $80k, strongly consider the election. Above $120k, it is a slam dunk.

What Stays the Same

Both LLC and S-Corp are pass-through entities — profits flow to your personal return and are taxed at ordinary income rates. Both qualify for the 20% QBI deduction (with phase-outs). Both provide limited liability. Both can have multiple owners. The structural difference at the state level and the legal protections are largely identical.

Retirement Account Leverage

S-Corp owners on payroll can contribute to Solo 401(k) plans based on W-2 wages, potentially allowing larger total retirement contributions than a pure LLC owner with the same total profit. This is a secondary benefit, but real: for high-income owners, the S-Corp plus Solo 401(k) combo can be a powerful tax shelter.

When NOT to Elect S-Corp

• Profit below $60k — admin costs exceed savings • Unstable income — forcing yourself to run W-2 payroll every month is a cash-flow headache • Plan to raise outside capital — LLC flexibility matters if investors are coming • Multi-state operations with complex state tax issues • Businesses that will be sold or rolled up — S-Corp election complicates some acquisition structures

Which is right for you? — 3-Question Quiz

Answer honestly — we will match your situation to LLC or S-Corporation.

0/3 answered

1. What is your net self-employment profit (after business expenses)?
2. How comfortable are you with payroll and extra paperwork?
3. How stable is your income year to year?

Related Calculators

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LLC vs S-Corp Calculator

Break-even analysis with your numbers

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Self-Employment Tax Calculator

See what an LLC costs you

→

QBI Deduction Calculator

20% pass-through deduction for both structures

→

Self-Employed Retirement Calculator

Solo 401(k) and SEP options

Frequently Asked Questions

Can I form an LLC and elect S-Corp taxation?+

Yes — this is the most common setup for small businesses. File Form 2553 with the IRS (and any required state form) to elect S-Corp status while keeping the LLC legal structure.

At what income level should I elect S-Corp?+

Rough rule of thumb: $60,000 of net profit is the minimum; $80,000+ makes the math clearly favorable in most cases. Your accountant can run the exact numbers based on your state and situation.

What is "reasonable compensation"?+

The salary you would pay someone else to do your job. Use BLS data, recruiter benchmarks, and industry salary surveys to justify your number. Document it — the IRS has been aggressive on this.

Can I undo an S-Corp election?+

Yes, but once revoked you cannot re-elect for 5 years without IRS permission. Be thoughtful before electing, especially if income is volatile.

Does an S-Corp protect me from lawsuits better than an LLC?+

No. Legal liability protection comes from the LLC or corporation legal structure, not the tax election. An LLC taxed as S-Corp has identical liability protection to an LLC taxed as partnership or sole proprietorship.

What about C-Corporation?+

C-Corp is a separate tax entity subject to double taxation (corporate + dividend). Rarely optimal for small owner-operator businesses. It can make sense for high-growth startups seeking VC investment or retaining large earnings inside the business.

Does an S-Corp lower my income tax?+

No — your total income tax is roughly the same. The savings are in self-employment/FICA tax, not income tax.

Are there states that treat S-Corps unfavorably?+

California imposes a 1.5% S-Corp tax plus the $800 minimum franchise tax. New York City has its own S-Corp tax. A handful of states require extra filings. Your accountant should walk through the state-level math before you elect.

← See all comparisons

Still on Schedule C? If you have not formed an entity yet, the first decision is sole proprietorship vs LLC — before worrying about the S-Corp election. See our LLC vs S-Corp vs Sole Proprietorship comparison for the full three-way breakdown.