Only once your profit is high enough that the payroll-tax saving beats the extra cost, usually somewhere around $80,000 to $100,000 of steady net profit, and even then only if you are willing to actually run payroll. An S-corp does not change your income tax. What it can change is your self-employment tax, because it lets you split your money into a salary (taxed for Social Security and Medicare) and a distribution (not taxed for them). Below that profit level the extra accountant and payroll costs usually eat the saving, so most one-van outfits should stay a sole proprietor or a plain LLC until the numbers clearly say otherwise.
An S-corp is a tax election, not a different kind of company. You can be an LLC and elect to be taxed as an S-corp. The work is real and so is the paperwork, so treat this as a math question, not a status upgrade.
What an S-corp actually changes
As a sole proprietor or single-member LLC, you pay self-employment tax of 15.3% on all your net profit (12.4% for Social Security up to the wage base, plus 2.9% for Medicare with no cap). That is on top of your income tax.
As an S-corp, you become an employee of your own company. You pay yourself a reasonable salary and run it through payroll, so Social Security and Medicare come out of that salary the normal way. Whatever profit is left you take as a distribution, and a distribution is not subject to that 15.3%. Your income tax is the same either way, because the profit still flows to your personal 1040. The only thing you are trying to save is the payroll tax on the distribution slice.
The reasonable-salary catch
You cannot pay yourself a $10,000 salary and take $90,000 as a distribution to dodge the tax. The IRS requires the salary to be reasonable for the work you do, roughly what you would have to pay someone else to do your job. There is no fixed IRS percentage, whatever you read online. Lowball your salary and the IRS can reclassify your distributions as wages, then hit you for the back payroll tax plus penalties and interest. This is the single most audited thing about small S-corps, so the salary has to be defensible.
When the math works
Say you clear $120,000 in profit. You pay yourself a reasonable $75,000 salary and take $45,000 as a distribution. Because your salary is under the Social Security wage base, that $45,000 would otherwise have carried the full 15.3%, so the distribution saves you roughly $6,900 before costs.
Note where the saving comes from. Below the Social Security wage base, each distribution dollar escapes the full 15.3%. Once your salary passes that wage base, the only thing left to save on the distribution is the 2.9% Medicare, so the higher your salary the thinner the win. That is why the election pays off in a band, not forever.
The costs and catches nobody mentions
- A second tax return. An S-corp files its own return (Form 1120-S) on top of your personal 1040. That is more accountant time, every year.
- Real payroll. You have to withhold, deposit, and file the payroll forms, or pay a service to. See the guide on payroll taxes for your first employee, because now the employee is you.
- A smaller QBI deduction. The salary you pay yourself is wages, and wages are not qualified business income. So a bigger salary shrinks your 20% QBI deduction, which quietly gives back part of the payroll-tax saving. This is the offset most people miss.
- Less flexibility, more rules. Distributions have to follow ownership, you cannot just take money out however you like, and undoing the election later is a hassle.
- State fees. Some states charge annual franchise or entity taxes and have their own payroll rules. Those vary, so see Working in Your State.
When it is not worth it
If your profit is modest or swings hard year to year, if you have no appetite for running payroll, or if you would have to pay yourself almost all of it as salary to keep it reasonable anyway, the election usually costs more than it saves. Plenty of contractors making a good living are better off as a plain sole proprietor or LLC. The S-corp earns its keep once the profit is high and steady enough that the saving clears the fixed costs with room to spare.
Common questions
At what income does an S-corp start saving me money?
Usually somewhere around $80,000 to $100,000 of steady net profit, though it depends entirely on your numbers. Below that, the extra tax return, payroll costs, and a smaller QBI deduction tend to cost more than the payroll tax you save on distributions. A CPA can price it for your actual profit before you elect.
Can I be an LLC and an S-corp at the same time?
Yes. An LLC is a legal structure and an S-corp is a tax election, so you keep the LLC and file Form 2553 to have it taxed as an S-corp. That is what most contractors do rather than forming a corporation from scratch, and you can undo it later, though undoing it is a hassle.
Does an S-corp lower my income tax?
No. An S-corp changes your self-employment (payroll) tax, not your income tax. Your profit still flows to your personal 1040 and gets taxed at the same brackets either way. The only saving is on the Social Security and Medicare tax you skip on the distribution part of your profit.
Does going S-corp reduce my QBI deduction?
Yes, and this is the offset most people miss. The salary you pay yourself counts as wages, and wages are not qualified business income, so a bigger salary shrinks your 20% QBI deduction. That hands back part of the payroll-tax saving, which is why the S-corp decision is a real calculation, not an automatic win.
How much salary do I have to pay myself in an S-corp?
Enough to be reasonable for the work, roughly what you would pay someone else to do your job. There is no fixed IRS percentage, whatever you read online. Lowball it to shift money into distributions and the IRS can reclassify the distributions as wages, then charge back tax plus penalties.
The honest bit
- These are 2026 federal figures (15.3% SE rate, the $184,500 Social Security wage base, the 20% QBI deduction). They change most years. Verify at irs.gov.
- There is no fixed IRS "salary percentage," and the profit level where an S-corp starts to pay depends entirely on your own numbers. The $80,000 to $100,000 range is a planning rule of thumb, not a rule.
- This is general guidance, not tax advice. An S-corp election is exactly the kind of decision to run past a CPA before you file Form 2553, because they can price the saving against the costs for your actual situation.
- State entity, franchise, and payroll rules sit on top and vary a lot. See Working in Your State.
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Keep reading
Templates you might need
Sources
- IRS - S Corporations · S corporation election, the Form 2553 route and the reasonable-compensation requirement for shareholder-employees
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