The S-corp election: doing the breakeven math

The S-corp election is the most oversold move in small-business tax advice — pitched to $30,000 freelancers who will lose money on it, and missed by $150,000 consultants who'd save five figures. The mechanism is real: it lets you stop paying self-employment tax on part of your profit. So are the costs: payroll service, extra tax return, state fees, and often reduced retirement-contribution room. Whether it pays is not a vibe. It's a subtraction problem.

The mechanism in one paragraph

A sole proprietor or default LLC pays self-employment tax — 15.3% (Social Security + Medicare) — on essentially all business profit. With an S-corp election, you become your company's employee: you pay yourself a 'reasonable salary' (which bears the same 15.3% as payroll taxes), and remaining profit comes out as a distribution that avoids self-employment tax entirely. The savings are roughly 15.3% of the distribution slice. That's the entire trick.

The full cost column

• Payroll service: running your own W-2 correctly costs about $500–800/year.
• Tax prep: an S-corp files its own return (Form 1120-S); expect $800–1,500+ more in accounting than a Schedule C.
• State costs: some states charge S-corps franchise taxes or don't recognize the election's benefits (California taxes S-corp income 1.5%, min $800; a few states are notably unfriendly). Your state can move the breakeven a lot.
• Retirement side effect: solo 401(k) and SEP contribution limits key off W-2 salary, not total profit — a low salary shrinks how much you can shelter.
• Admin drag: payroll filings, a separate return, and stricter bookkeeping — hours, even when outsourced.

The 'reasonable salary' is the load-bearing wall

The IRS requires the salary to reflect what you'd pay someone else to do your job — and it's the number the whole strategy leans on. Set it absurdly low ($20,000 salary on $200,000 of profit) and you're flying the audit flag the IRS explicitly watches for; reclassified distributions come back with payroll taxes, penalties, and interest. Benchmark against salary data for your role and hours, document the reasoning, and accept that the salary will usually land at 40–60% of profit for a full-time owner-operator. The strategy's savings live in the honest gap above a defensible salary — not in an indefensible one.

If the math says yes

1. Confirm the entity: you need an LLC or corporation to elect S-corp status (the election is a tax classification, not a new entity type).
2. File Form 2553 — generally by March 15 for the election to cover the current tax year.
3. Set the reasonable salary with your accountant, with written benchmarks.
4. Start payroll through a service; pay yourself the salary on a schedule, withholding included.
5. Take remaining profit as clean, documented distributions — never as random transfers.
6. Recheck the math annually: profit drops, state moves, or retirement-contribution goals can flip the verdict back.

The bottom line

The S-corp election is arithmetic wearing a mystique: roughly 15% of your distribution slice in savings, minus $1,500–2,500 of real annual costs, adjusted for your state and your retirement plans, all resting on a salary you could defend in an audit. Below $60,000 of profit, skip it. Above $100,000 of steady profit, run the numbers — they're usually worth thousands. Either way, decide with the subtraction, not the seminar.

The breakeven table

Two honest caveats keep this table from overselling. First, the savings percentage shrinks at very high incomes because Social Security tax caps out on wages around $176,000 — above that, distributions only dodge the 2.9-3.8% Medicare layer, not the full 15.3%. Second, a lower salary also lowers your Solo 401(k) employer contribution ceiling and your future Social Security benefit; the S-Corp saves payroll tax partly by shrinking the base those are computed on. The election is still clearly correct for most owners past $80,000-100,000 of durable profit — but it is a trade with second-order effects, not free money.

Timing matters too: Form 2553 is generally due by March 15 to make the election effective for the current tax year, though late-election relief is routinely granted with a reasonable-cause statement. The cleaner play for most owners is deciding in the fall with your accountant, once the year's profit trajectory is clear, and electing for January 1 — starting payroll mid-year multiplies the bookkeeping for a partial-year benefit.

Run the numbers again every year or two rather than treating the election as permanent identity. Profit dips, state fees change, and the reasonable-salary benchmark for your profession moves. An S-Corp that clears $4,000 of net benefit at $120,000 of profit can quietly turn into a $500-per-year paperwork tax after two lean years — and revoking the election, while somewhat sticky (a five-year wait before re-electing), is better than paying to maintain a structure the math no longer supports.