Two Different Questions Wearing One Confusing Label
“Should I do an LLC or an S-Corp” is one of the most common questions in this whole hub, and it’s built on a mix-up that trips up almost everyone who hasn’t run into it before. An LLC is a legal entity, something you form with your state. An S-Corp isn’t a competing entity type at all, it’s a federal tax election, something you file with the IRS on top of an entity you already have. You don’t pick one or the other. You form an LLC (or a corporation), and then you decide whether to have the IRS tax it as an S-Corp instead of the default way.
That distinction isn’t pedantic, it changes what the actual decision in front of you is. The entity formation guide already covers LLC versus sole proprietorship, the liability protection question. This one covers a completely different question that comes later: once you have an LLC, should you elect to have it taxed as an S-Corp?
Short version: An S-Corp election lets you split your business income into a salary (taxed like a paycheck) and distributions (which skip the 15.3% self-employment tax entirely). It can save real money, often $5,000 to $15,000 a year for a solidly profitable solo operation, but it adds payroll, a separate tax return, and a salary you have to justify to the IRS if audited. It usually doesn’t make sense until net profit is consistently running $50,000 to $80,000 or more.
What an S-Corp Election Actually Changes
Right now, as a sole proprietor or a default single-member LLC, every dollar of your net profit gets hit with the full 15.3% self-employment tax, the same math the 1099 tax realities piece walks through in detail. There’s no way around that under the default setup. All profit, full rate.
An S-Corp election changes that by splitting your income into two buckets. You become an employee of your own business, paid a salary through actual payroll, with normal FICA withholding, 15.3% total between the employer and employee sides. Whatever profit is left after that salary gets paid out to you as a distribution, and distributions aren’t subject to self-employment tax at all. You still pay regular income tax on every dollar either way, salary or distribution, that part doesn’t change. What changes is that the distribution portion skips the 15.3% entirely.
The Real Math: Salary, Distributions, and What You Actually Save
Here’s a working example. Say your net profit for the year is $120,000.
As a default LLC, self-employment tax runs on 92.35% of that profit:
- Taxable SE earnings: $120,000 × 92.35% = $110,820
- Social Security portion: $110,820 × 12.4% = $13,742
- Medicare portion: $110,820 × 2.9% = $3,214
- Total self-employment tax: $16,956
With an S-Corp election, say you set a reasonable salary of $65,000 and take the remaining $55,000 as a distribution:
- FICA on the $65,000 salary (both halves): $65,000 × 15.3% = $9,945
- FICA on the $55,000 distribution: $0
- Total payroll tax: $9,945
That’s $7,011 saved before subtracting what the S-Corp itself costs to run, payroll processing and a separate business tax return. Figure roughly $1,500 to $3,000 a year for that, depending on whether you’re doing your own bookkeeping already or paying someone. Net savings in this example lands somewhere around $4,000 to $5,500. Real numbers move with your actual salary choice, your state’s specific fees, and what you’re already paying for bookkeeping, but that’s the shape of it.
Where the Break-Even Usually Sits
The savings scale with profit, and the costs are mostly fixed, so there’s a real floor below which this isn’t worth doing. Most tax planners put that floor somewhere between $50,000 and $80,000 in consistent net profit, not a one-good-year spike, before the S-Corp math starts beating the sole proprietor math after accounting for the added overhead. Below that range, the payroll processing and extra tax return usually cost more than the self-employment tax you’d actually save. This isn’t a one-time decision either, it’s worth revisiting every year or two as your profit changes, since a business that didn’t clear the bar two years ago might clear it easily now.
The Reasonable Salary Trap (the IRS’s Favorite S-Corp Audit Target)
Here’s the part that gets people in trouble. The IRS knows exactly why S-Corp owners are tempted to set their own salary as low as possible, every dollar shifted from salary to distribution is a dollar that skips the 15.3%. So they watch this closely, and setting your salary artificially low is the single most common way S-Corp owners get flagged.
Straight from the IRS’s own guidance on this: a salary of zero is never acceptable if you’re actually doing the work, and courts have consistently ruled that an S-Corp officer performing real services is an employee whose pay counts as wages, full stop, regardless of what you call it on paper. The factors the IRS and courts actually weigh: your training and experience, your duties and time devoted to the business, what comparable businesses pay for similar work, your dividend history, and whether you’ve got an actual written rationale for the number you picked.
The practical takeaway: your salary should reflect roughly what you’d have to pay someone else to do the work you’re doing, based on real comparable pay for your trade, not the smallest number you can get away with. If the IRS successfully argues your salary was too low, it can reclassify part of your distributions as wages retroactively, plus penalties and interest on the payroll tax you should have paid. Document your reasoning when you set the number, even a simple note on what comparable pay looks like for your trade and role is worth having on file.
The Costs Nobody Mentions Upfront
The tax savings get all the attention in the sales pitch. The ongoing costs are usually the part left out:
- A separate tax return. Your LLC now files Form 1120-S, an informational return, and issues you a Schedule K-1, on top of your personal 1040.
- Actual payroll. You need a real payroll process, even if it’s just you on it, with withholding calculated and deposited on schedule. Most people use a payroll service rather than doing this by hand.
- Bookkeeping gets less optional. Salary and distributions need to be tracked separately and correctly, which connects directly to the business banking and bookkeeping guide, keeping clean books stops being a nice-to-have once payroll is involved.
- Some states add their own fees. A handful of states charge S-Corps additional franchise taxes or fees on top of what a plain LLC pays, worth checking your specific state before assuming the math above holds exactly.
The Health Insurance Wrinkle
This one catches people off guard specifically. If you’re a more-than-2%-owner of the S-Corp (which, as the sole owner, you are), and the business pays your health insurance premiums, those premiums have to show up as wages in Box 1 of your own W-2, they’re not subject to FICA or unemployment tax, but they do count as income-tax wages. Skip this step and file the premiums some other way, and you can lose the self-employed health insurance deduction on your personal return entirely. It’s a small mechanical detail, but it’s one that trips up a lot of first-year S-Corp owners handling their own payroll for the first time.
What Doesn’t Change
Your LLC stays your LLC. The election doesn’t touch your state registration, your liability protection, or your day-to-day operations. If you already have an LLC set up correctly with the separation the entity formation guide covers, distinct bank account, no commingled funds, that protection carries forward exactly as it was. The S-Corp election is purely a federal tax classification layered on top, nothing about the underlying business changes.
The QBI Piece for 2026
One more wrinkle worth knowing. The 20% Qualified Business Income deduction, made permanent under the 2025 tax law, applies to your pass-through profit, the distribution side, not to the W-2 salary you pay yourself. For nearly every reader here, well under the 2026 income threshold ($201,750 single, $403,500 married filing jointly), this doesn’t change the calculus above, you still get the full 20% deduction on your qualifying business income regardless of how you split salary and distributions. It only starts mattering as a real planning lever above that threshold, where the wage side of the business starts affecting the QBI wage limitation test. Worth knowing it exists, not worth losing sleep over at typical trade-business income levels.
How and When to Actually Elect
The election itself is IRS Form 2553. For it to apply to the current calendar year, it generally needs to be filed by March 15, or within two months and 15 days of forming a new entity if you’re electing right from the start. Miss that window and the election doesn’t take effect until January 1 of the following year, unless you qualify for late-election relief under Revenue Procedure 2013-30, which the IRS grants fairly routinely as long as you can show reasonable cause and you’ve been operating consistently as if the election were already in place.
Practically, this means the decision point tends to land at the end of a strong year. If this year’s net profit is tracking well past the break-even range and next year looks similar, that’s the moment to talk to a tax preparer about filing before the March 15 deadline for the following year.
Frequently Asked Questions
Is an S-Corp a different business entity from an LLC? ⌄
No. An S-Corp is a federal tax election, filed on Form 2553, not a separate legal entity type. You form an LLC (or a corporation) under state law first, and the S-Corp election just changes how the IRS taxes that same entity. Your LLC stays an LLC for every legal purpose.
At what point does electing S-Corp status actually save money? ⌄
Most tax planners put the break-even somewhere between $50,000 and $80,000 in consistent annual net profit, once you factor in the added payroll processing and tax return costs against the self-employment tax saved. Below that range, the extra overhead usually costs more than it saves.
Can I just pay myself a small salary and take the rest as distributions to avoid taxes? ⌄
No, and this is the single most common way S-Corp owners get flagged by the IRS. Your salary has to be “reasonable” for the work you’re actually doing, based on factors like comparable industry pay, your training, and time devoted to the business. Setting it artificially low can get distributions reclassified as wages retroactively, plus penalties.
Does the S-Corp election change my liability protection? ⌄
No. Liability protection comes from the LLC itself, not the tax election. If your LLC was set up and maintained correctly, that protection carries forward exactly the same after electing S-Corp status.
What deadline do I need to hit to elect S-Corp status? ⌄
Generally March 15 for the election to apply to the current calendar year, or within two months and 15 days of forming a new entity. Miss it and the election doesn’t kick in until the following January 1, though late-election relief is available under Revenue Procedure 2013-30 if you have reasonable cause.
Do I still have to pay quarterly estimated taxes after electing S-Corp status? ⌄
Your salary portion now has regular payroll withholding instead, similar to a W-2 job. But the distribution portion, and any gap not covered by withholding, generally still needs quarterly estimated payments. The quarterly estimated taxes guide covers the mechanics either way.
Frequently Asked Questions
No. An S-Corp is a federal tax election, filed on Form 2553, not a separate legal entity type. You form an LLC (or a corporation) under state law first, and the S-Corp election just changes how the IRS taxes that same entity. Your LLC stays an LLC for every legal purpose.
Most tax planners put the break-even somewhere between $50,000 and $80,000 in consistent annual net profit, once you factor in the added payroll processing and tax return costs against the self-employment tax saved. Below that range, the extra overhead usually costs more than it saves.
No, and this is the single most common way S-Corp owners get flagged by the IRS. Your salary has to be “reasonable” for the work you’re actually doing, based on factors like comparable industry pay, your training, and time devoted to the business. Setting it artificially low can get distributions reclassified as wages retroactively, plus penalties.
No. Liability protection comes from the LLC itself, not the tax election. If your LLC was set up and maintained correctly, that protection carries forward exactly the same after electing S-Corp status.
Generally March 15 for the election to apply to the current calendar year, or within two months and 15 days of forming a new entity. Miss it and the election doesn’t kick in until the following January 1, though late-election relief is available under Revenue Procedure 2013-30 if you have reasonable cause.
Your salary portion now has regular payroll withholding instead, similar to a W-2 job. But the distribution portion, and any gap not covered by withholding, generally still needs quarterly estimated payments. The quarterly estimated taxes guide covers the mechanics either way.
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