Every tax season, social media fills up with advice that every freelancer should “file as an S-corp to save on taxes.” That advice is correct in spirit and wrong in practice for most people. The S-corp election saves self-employment tax only after a specific profit threshold, and the compliance burden is real. Here is the honest break-even analysis.
Why an S-Corp Saves Tax (the Short Version)
A sole proprietor or single-member LLC pays 15.3% self-employment tax on every dollar of profit up to the Social Security wage base ($168,600 for 2025, adjusted annually), then 2.9% Medicare indefinitely. An S-corp shareholder-employee splits profit into two buckets:
- Reasonable W-2 salary — subject to FICA (the same 15.3% combined).
- Distributions — not subject to self-employment tax.
The tax savings equal 15.3% × (profit − reasonable salary). The trick is the phrase “reasonable salary” — the IRS audits this constantly.
The Break-Even Math (2026 Numbers)
| Profit | Reasonable Salary (est.) | SE Tax Saved | Compliance Cost | Net Benefit |
|---|---|---|---|---|
| $40,000 | $35,000 | ~$765 | ~$2,000+ | Negative |
| $80,000 | $55,000 | ~$3,825 | ~$2,500 | ~$1,300 |
| $150,000 | $80,000 | ~$10,710 | ~$3,000 | ~$7,700 |
| $250,000 | $120,000 | ~$19,890 | ~$3,500 | ~$16,000+ |
The rough rule of thumb: below $60,000 of net profit, skip it. Between $60K and $100K, it is borderline. Above $100K, it usually pays off handsomely.
Hidden Compliance Costs
- Payroll service (Gusto, ADP, QuickBooks Payroll): $45–80/month
- Separate business tax return (Form 1120-S): $800–1,500 preparation
- State filing fees and franchise taxes (California charges $800/year minimum)
- Quarterly 941 filings and annual W-2/W-3 issuance
- Potentially higher audit exposure on reasonable compensation
What Counts as a “Reasonable Salary”
The IRS does not publish a formula, but audits typically test against:
- Industry comparables (BLS data, Salary.com for the role)
- Training, experience, hours worked
- Percentage of total business income (historically 40–60% of profit for service businesses)
Paying yourself $10,000 of salary on $200,000 of profit is a red flag. Paying $80,000 on $200,000 is defensible.
Hidden Upside: Retirement Contributions
An S-corp owner-employee can layer a Solo 401(k) on top of the salary/distribution structure. The employee deferral comes out of W-2 wages; the employer contribution is a percentage of W-2 wages (25% of salary, up to the overall $70,000 cap). This can dwarf the SE-tax savings for high earners willing to defer aggressively.
When to Revoke the Election
If your profit drops below the break-even level for more than a year or two — for example during a sabbatical, child-rearing pause, or pivot — the S-corp compliance burden can consume the entire savings. Revoking is straightforward but takes effect at the start of the next tax year.