This is one of the most common questions I get from business owners — and the answer isn't one-size-fits-all. The right entity structure depends on your income level, business type, and long-term goals. But for many self-employed individuals, the difference in annual taxes can be staggering.
The Self-Employment Tax Problem
As a sole proprietor or single-member LLC, 100% of your net profit is subject to self-employment tax (15.3% on the first $168,600, 2.9% above that). On $150,000 of net profit, that's roughly $21,000 in SE tax alone — before federal and state income tax.
How the S-Corp Election Changes the Math
An S-Corp allows you to split your income into two buckets: a reasonable salary (subject to payroll taxes) and distributions (not subject to SE tax or payroll taxes). If you pay yourself $80,000 in salary and take $70,000 in distributions, you only pay payroll taxes on the $80,000 — saving roughly $10,710 in SE tax annually.
On $150,000 net profit: LLC pays ~$21,000 SE tax. S-Corp with $80K salary pays ~$12,240 in payroll taxes. Annual savings: ~$8,760. Over 10 years: $87,600+. The S-Corp election is often the single highest-ROI tax move available.
The Reasonable Salary Requirement
The IRS requires S-Corp owners who work in the business to pay themselves a "reasonable salary" — meaning what you'd pay someone else to do your job. This is the most scrutinized aspect of S-Corp taxation. Setting your salary too low is a red flag. A good rule of thumb: salary should be 40-60% of total compensation.
When the S-Corp Doesn't Make Sense
- Net profit under $40,000-$50,000: The administrative costs (payroll, separate tax return) may exceed the savings
- Businesses with significant losses: The SE tax savings don't apply when you're not profitable
- Certain professional service businesses in some states: Check state-specific rules
- Businesses planning to raise venture capital: S-Corps have restrictions on shareholders and share classes
The LLC Advantages Worth Keeping
LLCs offer simplicity, flexibility, and fewer administrative requirements. You can still elect S-Corp tax treatment while maintaining LLC legal structure — getting the best of both worlds. The LLC operating agreement also provides more flexibility than S-Corp bylaws.
The Decision Framework
- 1Calculate your expected net profit for the year
- 2Determine a reasonable salary for your role
- 3Calculate SE tax savings from the S-Corp election
- 4Subtract annual S-Corp administrative costs ($1,500-$3,000 for payroll + separate return)
- 5If net savings exceed $3,000-$5,000, the S-Corp election likely makes sense
Related Resource
Still deciding between S-Corp and LLC? Get your questions answered.
Our Tax Planning FAQ covers the S-Corp election in depth — when it makes sense, the reasonable salary requirement, how to calculate your savings, and common mistakes to avoid.
The entity structure conversation is one of the first things I have with every new client. Getting this right from the start — or correcting it — is often worth more than any other single tax strategy.
Tiffany Nellums, EA
Tiffany Nellums, EA
Tiffany is an IRS Licensed Enrolled Agent and NAEA member with over 10 years of experience helping business owners, real estate investors, and high-income earners reduce their tax burden through proactive planning and strategic structuring.