LLC vs S-Corp: The Decision That Could Save You Thousands.
Most business owners are overpaying taxes because they're in the wrong entity structure. One IRS form could change that.
A guide by Taxstra Tax & Accounting · CPA-led tax strategy for business owners
The Short Answer
If your net business profit exceeds $50,000 per year, an S-Corp election could save you $5,000-$30,000 annually in self-employment tax. Below that, the compliance costs usually outweigh the savings. But the real answer depends on your specific situation. If you want the definitional primer first, see what an S-Corp actually is. If the numbers point toward electing, our setting up an S corp: steps and costs guide walks through the process.
Side-by-Side Comparison
Sole proprietorship, LLC, and S-Corp across eight key factors.
| Feature | Sole Prop | LLC (Default) | S-Corp |
|---|---|---|---|
| Legal Protection | None | Yes | Yes |
| Self-Employment Tax | 15.3% on ALL profit | 15.3% on ALL profit | Only on salary |
| Tax Return Filed | Schedule C | Schedule C | Form 1120-S + K-1 |
| Payroll Required | No | No | Yes |
| Annual Compliance Cost | ~$0 | $0-$500/yr | $2,000-$5,000/yr |
| Best For | Side hustles <$40K | Under $50K profit | Over $50K profit |
| QBI Deduction (20%) | Yes | Yes | Yes |
| Retirement Plans | SEP IRA | SEP IRA | Solo 401(k) + match |
How S-Corp Saves Money
A real example with $150,000 in net business profit.
As an LLC
As an S-Corp
Annual Savings
$13,770
Minus ~$3,000 in S-Corp compliance costs = ~$10,770 net savings per year
Figures are illustrative. Actual savings depend on your specific situation and reasonable compensation analysis. The $60,000 salary shown is hypothetical.
When to Stay an LLC
The S-Corp is not the right choice for everyone. These situations call for keeping your default LLC taxation.
Net profit under $40K-$50K, the compliance costs outweigh the tax savings
Planning to raise VC funding, investors prefer C-Corps for convertible notes and preferred stock
You have foreign (non-US) shareholders. S-Corps can't have them
You hold rental real estate, never put appreciating property in an S-Corp (triggers deemed sale on exit)
More than 100 shareholders. S-Corps have a 100-shareholder limit
When to Elect S-Corp
These conditions signal that an S-Corp election is likely worth it.
Net profit consistently over $50K, the savings are real and compounding
No plans for outside investment, you're bootstrapping and self-funded
Willing to run payroll, or have your CPA handle it (like us)
Want to maximize retirement contributions. S-Corp enables employer match in Solo 401(k)
Ready to treat your business like a real business, separate bank accounts, clean books, formal structure
The Election Process
Five steps from LLC formation to your first S-Corp payroll run.
Form Your LLC
File articles of organization with your state. This creates your legal entity.
Get an EIN
Apply for an Employer Identification Number from the IRS (free, takes 5 minutes online).
File Form 2553
Submit your S-Corp election to the IRS. Due by March 15 for the current tax year.
Set Up Payroll
Begin paying yourself a reasonable salary via W-2. We use ADP for seamless processing.
File Form 1120-S Annually
Your S-Corp files its own tax return and issues K-1s to shareholders.
5 Mistakes That Cost Thousands
We see these errors with newly elected S-Corps more than anything else.
Paying Yourself $0 Salary
The #1 S-Corp audit trigger. The IRS requires reasonable compensation for owners who perform services.
Setting Salary Too Low
Without proper documentation (like RC Reports), the IRS can reclassify your distributions as wages, plus penalties.
Missing Form 2553 Deadline
If you don't file by March 15, you may have to wait until the next tax year. Late relief exists but isn't guaranteed.
Putting Real Estate in an S-Corp
Moving property out of an S-Corp triggers a deemed sale. You'll pay tax on all appreciation. Use a separate LLC.
Ignoring Corporate Formalities
The IRS can pierce the S-Corp election if you don't maintain separate bank accounts, meeting minutes, and proper records.
Related Resources
S-Corp Savings Calculator
See exactly how much you'd save by electing S-Corp.
Sole Proprietorship vs. S-Corp
Side-by-side tax comparison at every income level.
Advanced S-Corp Strategies
Go beyond the basics with Accountable Plans, QBI, and more.
Reasonable Compensation
How to set your salary to satisfy the IRS.
Late S-Corp Election
Missed the deadline? Relief may still be available.
Monthly Accounting
Keep your S-Corp books clean and tax-ready.
LLC Tax Filing Guide
How single-member and multi-member LLCs are taxed by default and by election.
LLC vs LLP
When a limited liability partnership makes more sense than an LLC.
Does an S Corp Get a 1099?
How 1099 reporting works once you're taxed as an S-Corp.
California S-Corp Setup
California S corp franchise tax and setup, state by state.
Accountant for LLC
What a CPA for your LLC handles: classification, S-Corp election, books, and filings.
Frequently Asked Questions
Not Sure? We'll Run the Numbers for You.
Book a free initial consultation. We'll analyze your specific situation and tell you exactly how much an S-Corp election would save, or if staying as an LLC is the better move.
Compare the whole operating cost
An S election changes tax treatment; it does not replace the state-law entity or remove administration. Compare reasonable owner wages, payroll costs, business-return preparation, state treatment, retirement contributions, and the owner's other income.
| Input | Why it matters |
|---|---|
| Sustainable business profit | A one-time strong month may not support ongoing cost |
| Owner duties and compensation | Salary must reflect actual services |
| Other wages | Employment-tax interactions can change the result |
| State and local taxes | Entity-level costs and elections vary |
| Administration | Payroll, separate returns and bookkeeping require work |
Run low, expected, and high profit scenarios in the existing calculator. Keep assumptions visible and compare cash costs with modeled tax differences. The calculator is not a determination of reasonable compensation.
For illustration, a model showing $6,000 of tax reduction before $4,000 of additional annual administration leaves $2,000 before other effects, not $6,000 of net benefit. Those figures illustrate the comparison method, not Taxstra fees or an expected saving.
Apply this to your records
Use the printable worksheet to compare the example with your records, identify missing support, and assign follow-up questions.
Open this guide’s worksheetOpens in a new tab · Print or save as PDF · No email required
Discuss the next decision with Taxstra
Outline your entity structure, owner work, payroll process, and upcoming decisions. We can discuss coordinated planning, accounting, and payroll responsibilities based on your circumstances.
A free 30-minute conversation with our onboarding team about your situation, service fit, and next steps. Fees depend on complexity, records, entities, states, and ongoing support.
Discuss your next decision with Taxstra
A free 30-minute conversation with our onboarding team about your situation, service fit, and next steps.
Educational, not individualized tax advice. Examples are hypothetical. Content updated September 5, 2026; confirm the rules applicable to your year and circumstances.
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