LLC vs. S-Corp — Which Is Right for Your Business?
Both protect your personal assets and offer pass-through taxation — but they differ in how you’re taxed on profits, compliance obligations, and flexibility. This guide breaks down every difference so you can make the right call.
The Short Answer
Most business owners ask “LLC or S-Corp?” — but the real question is whether to add S-Corp tax treatment to your LLC.
Choose a Standard LLC If…
Your business is early-stage, earning under $60K in net profit, or you want maximum simplicity. You’ll pay self-employment tax on all profits, but you avoid the cost and complexity of running payroll.
Choose LLC + S-Corp Election If…
Your business consistently earns $60K+ in net profit and you want to reduce your self-employment tax burden. You’ll run payroll for your salary, but distributions above that salary avoid the 15.3% SE tax.
Key insight: An “S-Corp” is not a different entity type — it’s a tax election you add to an existing LLC (or corporation) by filing IRS Form 2553. You can start as a standard LLC today and add S-Corp status later when your income justifies it.
LLC vs. S-Corp: Complete Comparison
Every important difference, side by side.
| Feature | LLC (Default Tax)Simple & flexible | LLC + S-Corp ElectionTax-optimized |
|---|---|---|
| What it is | Business entity + default tax treatment | Same LLC entity + S-Corp tax election (Form 2553) |
| Personal liability protection | ✓ | ✓ |
| Pass-through taxation | ✓ | ✓ |
| How profits are taxed | All profit subject to SE tax (15.3%) | Only salary subject to payroll tax; distributions are SE-tax-free |
| Self-employment tax savings | — | ✓ $3K–$15K+/year |
| Payroll required | No | Yes — reasonable salary to owner(s) |
| Tax return | Schedule C (single-member) or Form 1065 (multi-member) | Form 1120-S + K-1 for each shareholder |
| Compliance burden | Low | Moderate (payroll, 1120-S, K-1s) |
| Added annual costs | Minimal | $500–$2,000/yr (payroll + CPA) |
| Ownership flexibility | Unlimited members, any type | ≤100 shareholders, U.S. residents only |
| Ownership classes | Flexible membership interests | One class of stock only |
| Foreign owners allowed | ✓ | — |
| Raise venture capital | Uncommon | Difficult (VCs prefer C-Corp) |
| Convert to C-Corp later | ✓ | ✓ (revoke S-election first) |
| Best income threshold | Any income level | $60,000+ net profit consistently |
| Formation cost (our service) | $0–$149 + state fee | $149–$349 + state fee |
Tax Comparison: How Much You’d Actually Pay
See the real-world tax difference at each income level — and when the S-Corp election starts paying for itself.
| Net Profit | SE Tax as LLC | Payroll Tax as S-Corp | Gross Savings | Net Savings* |
|---|---|---|---|---|
| $40,000 | $6,120 | $4,590 | $1,530 | –$470 |
| $60,000 | $9,180 | $6,120 | $3,060 | +$1,060 |
| $80,000 | $12,240 | $7,650 | $4,590 | +$2,590 |
| $120,000 | $18,360 | $9,180 | $9,180 | +$7,180 |
| $175,000 | $26,775 | $12,240 | $14,535 | +$12,535 |
| $250,000 | $33,630 | $15,300 | $18,330 | +$16,330 |
* Net savings = gross savings minus ~$2,000 estimated annual payroll + CPA costs. At $40K profit, the added costs exceed the tax savings — making the S-Corp election a net negative.
Key Differences Explained
Beyond the comparison table — the nuances that matter when deciding.
1. Self-Employment Tax
This is the #1 reason business owners consider the S-Corp election. As a standard LLC, you pay 15.3% self-employment tax on all net business income (12.4% Social Security + 2.9% Medicare).
With S-Corp election, you split your income into two buckets: salary (subject to payroll tax) and distributions (not subject to SE tax). The distribution portion is where you save — potentially thousands of dollars per year.
However, the IRS requires your salary to be “reasonable” for the work you do. Setting it too low triggers audits and penalties. A CPA can help you determine the right number based on your industry, role, and experience.
Standard LLC
SE tax on $100K
$15,300
LLC + S-Corp
Payroll tax on $55K salary
$8,415
2. Compliance & Paperwork
A standard LLC is one of the simplest business structures to maintain. For a single-member LLC, you report business income on your personal tax return (Schedule C) — no separate business tax return required.
An S-Corp adds meaningful complexity: you must run payroll (monthly or biweekly), file quarterly payroll tax returns (Form 941), issue W-2s at year-end, file an annual Form 1120-S (the S-Corp return), and issue K-1s to each shareholder.
This typically