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When Should an LLC Become an S-Corp? The $80K Rule, Tested
The short answer: elect S-corp when your profit is about $15,000–$18,000 more than a reasonable salary for your work, and you expect it to stay there. With a $50,000 salary, break-even is about $66,000 of profit, and savings pass $2,000 a year around $80,000. So the "$80K rule" works if a fair salary for you is about $50,000, and misleads if it's much higher or lower.
Where the $80K rule comes from
Many advisors say to consider an S-corp once your business makes about $80,000 in profit. It's a handy shortcut, but it leaves out the number that actually drives the savings: your salary. An S-corp only saves the 15.3% self-employment tax on profit above your salary, so two owners with $80,000 of profit can get very different answers.
The rule, tested
| Profit | Salary $35,000 | Salary $50,000 | Salary $70,000 |
|---|---|---|---|
| $50,000 | $68 | −$2,227 | — |
| $60,000 | $1,481 | −$814 | — |
| $80,000 | $4,307 | $2,012 | −$1,048 |
| $100,000 | $7,133 | $4,838 | $1,778 |
| $150,000 | $14,197 | $11,902 | $8,842 |
| $200,000 | $21,237 | $18,942 | $15,882 |
Yearly federal payroll tax savings after $1,600 of extra costs (payroll service and the S-corp tax return), 2026 rates, a state with no S-corp tax. A dash means the salary is higher than the profit.
- Salary $35,000: break-even about $50,000 of profit. At $80,000 you'd save about $4,300 a year, so the $80K rule waits too long.
- Salary $50,000: break-even about $66,000. At $80,000 you save about $2,000: the rule fits.
- Salary $70,000: break-even about $88,000. At $80,000 an S-corp would cost you about $1,000 a year.
Find your break-even
Signs it's time
- Your profit has been well above a fair salary for your role for at least a year, and you expect it to stay there.
- The savings in the calculator are comfortably above $2,000 a year, so they're worth the extra work.
- You're ready to run payroll every month or quarter and keep cleaner books.
- You've checked your state: in California the 1.5% tax is small, but in New York City the 8.85% city tax pushes break-even much higher. See S-corp tax in California and New York City.
When to wait
- Your income swings a lot, or this year's profit was a one-time spike.
- Your profit is close to what a fair salary would be.
- You plan to max out a Solo 401(k): contributions are tied to your S-corp salary, which can work against keeping salary low.
Timing the switch
For S-corp taxes to cover a full calendar year, file Form 2553 by March 15 of that year (March 15, 2027 for 2027), or any time in the year before. See how to elect S-corp. Many owners make the call in the fall, once they can see the year's profit.
FAQ
Is the $80K rule for S-corps accurate?
Only for owners whose reasonable salary is around $50,000. The break-even is roughly your salary plus $15,000–$18,000 of profit, so it can be lower or much higher than $80,000.
How much does an S-corp save at $100,000 profit?
With a $50,000 salary and $1,600 of extra costs, about $4,800 a year in federal payroll taxes under 2026 rates. With a $70,000 salary, about $1,800.
Can I elect S-corp in the middle of the year?
An election made within 2 months and 15 days of the start of the tax year can cover the whole year. After that, it generally takes effect the next year, unless you qualify for late-election relief.
Sources: IRS: S corporation compensation · IRS: self-employment tax · 2026 Social Security wage base · IRS: About Form 2553. General information for planning, not tax, legal or financial advice.