When an S-Corp Actually Pays For Itself
Somebody at a trade show told you to become an S-corp. They were not wrong, exactly. They were just missing the part where it costs money to run one.
What the election changes
As a sole proprietor or single-member LLC, your net profit is subject to self-employment tax — Social Security and Medicare, both halves, because you are both employer and employee. That applies to the whole profit.
Elect S-corp status and you split that profit into two buckets:
- Reasonable compensation — a W-2 salary you pay yourself, which is subject to payroll taxes.
- Distributions — the remaining profit, which is not subject to self-employment tax.
The savings come entirely from the second bucket. Nothing else about the election reduces your income tax; the profit still flows to your personal return either way.
The arithmetic
Say the business nets $120,000 and a defensible salary for your role is $60,000.
- As a sole proprietor: roughly the full $120,000 of net profit faces SE tax.
- As an S-corp: $60,000 faces payroll tax. The other $60,000 does not.
At a combined Social Security and Medicare rate in the 15.3% range on the portion below the wage base, sheltering $60,000 from that is real money — on the order of $9,000 before you subtract what the structure costs to operate.
What it costs to operate
This is the column people leave out:
- Payroll processing. You now have a W-2 employee, so you need a payroll service, quarterly federal filings, annual W-2 and W-3, and state unemployment registration and returns. Call it $600 to $1,500 a year.
- A separate business return. Form 1120-S, plus a K-1 to you. Preparation runs a few hundred to a couple thousand depending on complexity.
- State-level costs. Many states charge a franchise tax, minimum fee, or annual report fee on S-corps regardless of profit.
- Less flexibility. Distributions have to follow ownership percentages. Basis tracking becomes something you actually have to maintain.
Realistically, $2,000 to $4,000 a year in added cost and complexity.
So where is the line?
Below roughly $50,000 of net profit, the election usually loses. A defensible salary eats most of the profit, so there is little left in the distribution bucket, and the compliance cost swamps the savings.
Between $50,000 and $80,000, it depends on what a reasonable salary looks like for your trade in your market. Worth modeling, not worth assuming.
Above roughly $80,000, the election usually wins, and the gap widens as profit grows.
Those bands are a starting point, not a rule. A crew of eight with heavy payroll looks different from an owner-operator with the same profit.
The mistake that undoes all of it
Paying yourself too little salary.
The savings scale with how much you shift out of wages, so the temptation is to pay yourself $15,000 and distribute $105,000. That is the single most reliably audited feature of a small S-corp return.
"Reasonable compensation" is a facts-and-circumstances test: what would you have to pay someone else to do your job? For an owner who runs routes, quotes jobs, manages crews, and handles the books, a five-figure token salary is not defensible. When the IRS recharacterizes distributions as wages, you owe the payroll taxes, plus penalties and interest, plus the cost of the fight.
A well-documented salary that saves you $7,000 beats an aggressive one that saves $11,000 and gets reversed.
What documentation actually looks like
Keep, in a file, for each year:
- Job-posting or salary-survey data for comparable roles in your area.
- A short written description of what you actually do and roughly how your time splits.
- Board minutes or a written owner resolution setting the salary.
- Evidence you followed it — real payroll runs on a real schedule, not one December entry.
That file takes an hour a year to maintain and it is the difference between a defensible position and a guess.
One more thing about timing
The election has filing deadlines, and a late election needs relief under the IRS's late-election procedures. It is usually grantable, but it is paperwork you can avoid by deciding before the year starts rather than in March when the return is due.
If you are near the threshold, the right move is to model your actual numbers — profit, a defensible salary for your trade, and your state's specific S-corp costs — rather than working from a rule of thumb you got in a parking lot.