Contents:
- The Core Difference in Plain Terms
- Pros of Default LLC Taxation
- Pros of S Corp Election
- Key Differences at a Glance
- Quick Cost Breakdown
- An Expert’s Take
- When to Pick LLC vs S Corp
- A Real Example
- Frequently Asked Questions
- Can I switch from LLC to S Corp later?
- Do I need a new business entity to become an S Corp?
- What is a reasonable salary for S Corp purposes?
- Does an S Corp reduce my income tax rate?
- Wrap-Up
Long before either structure existed on paper, early American merchants organized as sole proprietors and partnerships, exposing their personal homes and savings to every business debt. The LLC and S Corp were later legal inventions designed to solve that exact problem, and today they solve it in meaningfully different tax ways.
The Core Difference in Plain Terms
An LLC is a legal structure; an S Corp is a tax election. In fact, an LLC can elect to be taxed as an S Corp, which is where most of the confusion comes from. The real comparison is between default LLC taxation and LLC-taxed-as-S-Corp taxation.
Pros of Default LLC Taxation
A default LLC is taxed as a pass-through entity, meaning profits flow directly to your personal tax return without a separate corporate filing. This keeps paperwork simple, usually just a Schedule C or Form 1065, and avoids payroll obligations if you’re the only owner.
Default LLC taxation also skips the requirement to pay yourself a “reasonable salary,” avoiding the burden of running payroll and filing quarterly payroll reports.
Pros of S Corp Election
Electing S Corp status lets you split income into a salary, subject to payroll taxes, and a distribution, not subject to self-employment tax. On $100,000 of net profit, a default LLC owner pays self-employment tax, currently 15.3%, on the full amount. An S Corp owner might pay a $60,000 salary and take $40,000 as distribution, saving roughly $6,000.
S Corp status also signals more legitimacy to some lenders and clients when applying for financing or larger contracts.
Key Differences at a Glance
- Self-employment tax: LLC pays on all profit; S Corp pays only on the salary portion
- Payroll requirement: LLC has none; S Corp requires a reasonable salary and payroll filings
- Filing complexity: LLC is simpler; S Corp requires Form 1120-S and payroll compliance
- Cost to maintain: LLC averages $0-$800/year; S Corp adds $800-$2,000/year in payroll and accounting
- Best for: LLC suits lower-profit or early-stage businesses; S Corp suits consistent profit above roughly $60,000-$80,000
Quick Cost Breakdown
Budget $500-$1,500 annually for a payroll service if you elect S Corp status, plus $300-$800 for a tax professional experienced in S Corp filings. Default LLC owners typically spend $150-$400 annually on tax prep since the return is simpler.
An Expert’s Take
“The self-employment tax savings from an S Corp election only outweigh the added payroll costs once net profit clears about $60,000,” says Diane Whitfield, a CPA who teaches small business taxation in Ohio. “Below that, the extra administrative cost usually cancels out the savings.”
When to Pick LLC vs S Corp
Choose default LLC taxation if net profit is under roughly $50,000, you want minimal paperwork, or income fluctuates year to year. Choose S Corp election if profit consistently exceeds $60,000-$80,000 and you have an accountant to set a defensible salary.

A Real Example
A freelance designer switched her LLC to S Corp taxation once her net profit hit $85,000. Paying herself a $55,000 salary and taking the rest as distributions saved roughly $4,200 in self-employment tax that year, even after covering payroll service costs.
Frequently Asked Questions
Can I switch from LLC to S Corp later?
Yes, you file Form 2553 with the IRS to elect S Corp taxation for your existing LLC, typically before March 15 for the election to apply that tax year.
Do I need a new business entity to become an S Corp?
No, S Corp is a tax election, not a new legal entity, so your existing LLC or corporation simply changes how it’s taxed.
What is a reasonable salary for S Corp purposes?
It should reflect what someone else would be paid for your role in your industry and region; the IRS scrutinizes salaries set artificially low to dodge payroll tax.
Does an S Corp reduce my income tax rate?
No, it only affects self-employment and payroll tax; your income tax rate on total earnings stays the same regardless of structure.
Wrap-Up
Run the numbers on your actual projected profit before choosing, since the right answer depends entirely on where your business sits on the income scale this year, not on which structure sounds more official.