Schedule C vs. S-Corp
When does the switch actually save you money?
If you run a profitable business as a sole proprietor or single-member LLC, your income lands on a Schedule C — the form attached to your personal return that reports business profit. It’s simple, and for many businesses it’s exactly right. But as your profit grows, that simplicity starts to carry a cost: every dollar of profit is exposed to self-employment tax. Electing S-corporation treatment is the most common way owners reduce that cost — and it’s also one of the most misunderstood moves in small-business tax.
How the savings work
On a Schedule C, all of your net business profit is subject to self-employment tax — 15.3% covering Social Security (12.4%) and Medicare (2.9%) — on top of regular income tax. Earn $100,000 of profit, and roughly the full amount is hit with SE tax before income tax even enters the picture.
An S-corporation changes that. The business becomes a separate tax entity that files its own return, and you — the owner — take money out in two distinct ways:
A reasonable salary, paid to you as a W-2 employee. This is subject to payroll taxes (the same 15.3%, split between you and the company).
Distributions, the remaining profit, paid to you as an owner. These are not subject to self-employment or payroll tax.
That second bucket is the entire point. By splitting your income, you pay the 15.3% only on the salary portion — not on the full profit. The distributions escape that tax. The larger your profit relative to a reasonable salary, the more you save.
Why it works
Take a business netting $120,000 in profit, where $70,000 is a reasonable salary for the work involved:
On Schedule C, the entire $120,000 is subject to self-employment tax of $18,360. Owners are not allowed to take a salary on a Schedule C.
As an S-Corp, only $70,000 of reasonable owner salary would be subject to Social Security and Medicare taxes of $10,710 plus roughly an additional $450 for unemployment taxes. All in, total payroll taxes approximate $11,160. The remaining profit of $50,000 is distributed to you and not subject to payroll tax.
Approximate payroll-tax savings of $7,200 per year
Note that income tax is roughly the same either way — the profit flows to your personal return in both cases. The savings come specifically and only from reducing the income exposed to the 15.3% self-employment/payroll tax. That’s the whole engine.
These figures are simplified to show the mechanism. Actual numbers depend on the Social Security wage base, the deductible half of SE tax, your state, and your specific reasonable salary. The shape of the savings is the point, not the exact dollars.
When the switch makes sense
The savings are real, but they aren’t free — so the question isn’t “can I save on SE tax?” but “do the savings outweigh the added cost and effort?” Electing S-corp status adds real obligations:
Running payroll. You must pay yourself a formal W-2 salary, which means payroll processing, withholding, and filings — often $500–$1,500+ a year.
A separate business return. An S-corp files Form 1120-S, which is more involved and more expensive to prepare than a Schedule C.
More bookkeeping discipline. Salary, distributions, and reimbursements all have to be tracked cleanly and kept separate from personal funds.
Ongoing compliance. State filings, payroll-tax deposits, and deadlines that a Schedule C filer simply doesn’t have.
Add it up and the election commonly costs $2,000–$4,000 a year in extra compliance. So in the example above, roughly $7,200 of savings minus, say, $3,000 of added cost leaves about $4,200 of genuine annual benefit — still worthwhile, but a more honest figure than the headline number.
As a rough rule of thumb, the election starts paying off once net profit clears somewhere around $40,000–$50,000 — below that, the savings usually don’t justify the cost; above it, the case strengthens as profit grows. But “rule of thumb” is doing real work in that sentence: the true breakeven depends on your reasonable salary, your state, whether you already run payroll, and your wider tax picture.
The guardrail you can’t ignore: reasonable compensation
There’s a natural temptation to set the salary as low as possible — after all, the smaller the salary, the larger the tax-free distribution. But the law requires that salary to be reasonable for the work you actually do. Pay yourself an artificially low wage and take everything else as distributions, and you’ve created one of the most common S-corp audit triggers there is. The IRS can reclassify those distributions as wages and assess back payroll taxes, penalties, and interest.
Reasonable compensation is its own analysis — based on your role, industry, experience, time spent, and what it would cost to hire someone to do your job. Getting it right is exactly where the value of the election is either protected or lost. A defensible salary is what makes the savings real rather than risky.
Why an S-corp specifically
Self-employment tax is one of the few taxes a profitable owner can legitimately reduce through structure rather than just deductions. You can’t deduct your way out of SE tax on a Schedule C — the 15.3% applies to net profit regardless of how many expenses you claim. The S-corp election is the cleanest, most established mechanism for addressing it, which is why it’s so widely used once a business is profitable enough to justify the overhead.
It also brings secondary benefits: a clearer separation between you and the business, a formal salary that can support retirement-plan contributions, and a structure that scales as you grow. None of those are reasons to elect on their own, but they sweeten the case once the SE-tax math already works.
The bottom line
A Schedule C is simple and often the right home for a newer or lower-profit business. But as profit grows, the self-employment tax it carries becomes a real and avoidable cost. An S-corporation election — done at the right profit level, with a defensible salary, and run properly — can turn a meaningful slice of that tax into savings year after year. The key word is “properly”: the election rewards businesses that handle the salary and compliance correctly, and punishes those that don’t.
Not sure whether the numbers work for your business? That’s exactly the analysis I do — a clear, no-jargon look at whether an S-corp election would actually save you money, what a reasonable salary looks like for your situation, and what it would take to do it right. Accord Tax & Planning offers a free 30-minute consultation by video, wherever you are.
This article is general information, not tax advice for your specific situation. Tax outcomes depend on your individual facts; please consult a qualified tax professional before acting. Accord Tax & Planning · Enrolled Agent, federally licensed to represent taxpayers before the IRS.