Most articles on this topic set up a cage match: S corp in one corner, LLC in the other, pick your winner. That framing is exactly why so many business owners stay stuck. An LLC and an S corp are not two versions of the same thing. An LLC is a legal entity you form with your state. An S corp is a tax status you elect with the IRS. You can be both at the same time, and a lot of profitable businesses are. So the question worth asking usually isn’t “S Corp vs LLC, which one should I pick?” It’s “I already have an LLC. Should it be taxed as an S corp, and if so, when?”
Once that clicks, the rest of the decision gets much simpler. Below, we cover what each one actually is, the single tax difference that drives the whole choice, what electing S corp status really costs you, and the profit level where it starts to pay for itself. AP CPA Advisors handles these elections for clients every week, so we’ll also be straight with you about when it isn’t worth the trouble.
Key takeaways
- An LLC is a legal entity. An S corp is a tax election. They aren’t competitors, and an LLC can choose to be taxed as an S corp.
- The entire S corp tax advantage comes from one move: splitting your pay into a reasonable salary (subject to payroll tax) and distributions (not subject to self-employment tax).
- For 2026, self-employment tax runs 15.3% on the first $184,500 of net earnings (12.4% for Social Security plus 2.9% for Medicare). That is the tax the S corp election helps you trim.
- Electing costs money too: payroll, a separate business tax return, extra bookkeeping, and a salary the IRS will accept as reasonable. Your savings have to clear those costs.
- As a rough guide, the math starts working somewhere around $50,000 to $80,000 of steady net profit, but the real threshold depends on your specific numbers.
- Making the election does not dissolve your LLC or weaken your liability protection. You keep the entity and switch the tax treatment.
In this article
- Where the S Corp vs. LLC comparison goes wrong
- What an LLC actually is
- What an S Corp actually is
- The one difference that decides everything: self-employment tax
- What running an S corp actually costs
- When it’s time to elect your LLC as an S Corp
- What changes when you elect, and what doesn’t
- How AP CPA Advisors takes the guesswork out
- Frequently asked questions
Where the S Corp vs. LLC comparison goes wrong
Here is the confusion in one sentence: “LLC” and “S corp” answer two different questions.
“LLC” answers a legal question. When you file articles of organization with your state, you create a limited liability company: a separate legal entity that, in most cases, shields your house, your car, and your personal savings from the business’s debts and lawsuits.
“S Corp” answers a tax question. It’s short for Subchapter S, the part of the tax code that lets a qualifying business pass its income straight through to its owners and skip a layer of corporate tax. You get it by filing a form with the IRS, not by forming anything new with your state.
Because they answer different questions, they can both be true of the same business. The most common setup we see with clients isn’t “an LLC” or “an S corp.” It’s an LLC that has elected to be taxed as an S corp. It keeps the legal simplicity and protection of the LLC, and adds the tax treatment of an S corp on top. Once you see the two as separate layers, the whole S Corp vs LLC question stops being either/or and becomes a matter of timing.
What an LLC actually is
An LLC is the default home base for most small businesses, and for good reason. It’s straightforward to set up, light on paperwork, and it separates your personal assets from the business.
By default, the IRS doesn’t even tax an LLC as its own thing. A single-owner LLC is taxed like a sole proprietorship, and a multi-owner LLC is taxed like a partnership. In both cases, the profit passes through to the owners, who report it on their personal returns. There’s no separate federal income tax on the business itself.
That default treatment has one expensive feature. Every dollar of profit that lands on your personal return as an LLC owner is generally subject to self-employment tax on top of income tax. Hold that thought, because it’s the whole reason the S corp election exists.
LLCs are also flexible in ways an S corp is not. You can have as many owners as you want, including other companies and non-U.S. owners, and you can split ownership and profits in uneven ways that fit a deal. None of that is possible under S corp rules.
What an S Corp actually is
An S Corp is not a business you form. It’s an election you make, using IRS Form 2553, that tells the IRS to tax your existing LLC (or corporation) under Subchapter S.
Not every business qualifies. To be eligible, you generally have to:
- Have no more than 100 shareholders, all of whom are U.S. citizens or residents.
- Have only one class of ownership interest, with no special preferred tiers.
- Be a domestic, eligible business. A few types, like certain financial companies, can’t elect.
If you’re a typical owner-operated business with U.S. owners, you almost certainly qualify. Like an LLC, an S corp is a pass-through: the business itself pays no federal income tax, and the profit flows to the owners’ personal returns. The difference, and the entire point, is how you get paid.
The one difference that decides everything: self-employment tax
Strip away the jargon, and the S Corp decision comes down to a single line item: self-employment tax.
As an LLC taxed the default way, you pay self-employment tax on all of your net profit. For 2026, that’s 15.3% (12.4% for Social Security and 2.9% for Medicare), applied to the first $184,500 of earnings for the Social Security portion, with Medicare continuing with no cap. On $120,000 of profit, that self-employment tax alone comes to roughly $16,900.
An S corp changes the shape of your pay. Instead of all of it being self-employment income, you become an employee of your own business and split what you take out into two buckets:
- A reasonable salary, run through payroll, which is subject to the same Social Security and Medicare taxes.
- Distributions, meaning the rest of the profit, which are not subject to self-employment tax.
That second bucket is where the savings live. Here’s the same $120,000 business as an S corp, paying the owner a $70,000 salary:
- Payroll taxes on the $70,000 salary: about $10,700.
- Distributions of $50,000: no self-employment tax.
Total employment tax of roughly $10,700, versus about $16,900 as a default LLC. That’s around $6,200 in savings, before costs, for the same take-home pay. And the gap widens as profit grows. At $150,000 of profit, the difference is closer to $10,000 a year.
Two honest caveats before you get excited. First, a reasonable salary is not a number you get to minimize. The IRS expects it to reflect what the work is actually worth, and paying yourself an artificially tiny salary to dodge payroll tax is one of the fastest ways to invite an audit and back taxes with penalties. Second, these figures are illustrations, not a promise. Your real number depends on your salary, your profit, and your state.
What running an S corp actually costs
The tax savings are only half the equation. Electing S corp status also adds real, recurring costs, and any comparison that skips them is selling you something.
Once you’re an S corp, you have to:
- Run actual payroll. You become a W-2 employee of your business, which means payroll software or a provider, regular tax deposits, and quarterly and annual payroll filings.
- File a separate business tax return. An S corp files its own return (Form 1120-S) each year and issues a Schedule K-1 to each owner. That’s on top of your personal return, and it usually raises your tax-prep bill.
- Keep cleaner books. The salary-and-distribution split only works if your bookkeeping is tight enough to support it.
- Defend a reasonable salary. Someone has to benchmark it and document it.
Add it up, and the election commonly carries $2,000 to $5,000 or more in extra annual cost between payroll, the additional return, and bookkeeping. That’s the number your self-employment tax savings have to beat before you’re actually ahead.
There’s one more wrinkle worth knowing about. The 20% deduction for qualified business income (Section 199A, made permanent by the 2025 tax law) is available whether you’re a default LLC or an S corp, but the salary you pay yourself counts as wages, not qualified business income, which can shrink that deduction. It can also, for higher earners, help you qualify for it. This is exactly the kind of second-order effect that changes the answer, and it’s why the decision deserves a real calculation rather than a rule of thumb.
When it’s time to switch from an LLC to an S Corp
So where’s the line? The short version: the S corp election makes sense once your self-employment tax savings comfortably outrun the added cost of payroll, a second tax return, and bookkeeping, with room to spare.
In practice, that usually means the business is throwing off somewhere in the range of $50,000 to $80,000 or more in net profit, consistently, after you’ve paid yourself a fair salary. Below that, the extra cost and hassle often eat most of the benefit. Well above it, the savings can run into five figures a year, and the election becomes close to a no-brainer.
But the threshold is genuinely situational, and a few things matter as much as the raw number:
- Consistency. A one-off great year is different from a business that reliably clears the threshold. The election comes with ongoing obligations you can’t switch off cheaply.
- A defensible salary. If your reasonable salary would eat up almost all the profit anyway, which is common in service businesses where you are the product, there’s little left to take as distributions, and the savings shrink.
- Your state. Some states impose their own fees, franchise taxes, or filing quirks on S Corps that trim the federal benefit.
This is the part worth handing to a professional. Plugging your actual numbers into the real math, including the salary question and your state’s rules, is how you find your specific break-even instead of guessing at ours. Our tax planning team does this calculation before anyone files a thing.
What changes when you elect, and what doesn’t
A lot of owners hesitate because they think electing S corp status means tearing down their LLC and rebuilding. It doesn’t.
When your LLC elects to be taxed as an S corp, the LLC stays exactly as it is. Same legal entity, same name, same operating agreement, same bank accounts, same liability protection. You are not dissolving anything or filing new formation documents with your state. You’re changing one thing: how the IRS taxes the money.
What does change is the operational rhythm. You start running payroll and paying yourself a salary, you file that separate business return each year, and your bookkeeping gets a little more structured. For most owners, that’s a manageable trade for the savings, especially with someone handling it for you.
Timing is the one place people get burned. To have the election apply to the current tax year, a calendar-year business generally has to file Form 2553 by the 15th day of the third month, which usually lands around March 15 (it’s March 16 in 2026). A brand-new business gets two months and 15 days from the day it starts up. Miss the window, and your election normally doesn’t take effect until the following January, though the IRS does offer late election relief that can reach back up to three years and 75 days if you qualify. The cleaner path is to decide before the deadline, which is one more reason to have the conversation early rather than in April.
How AP CPA Advisors takes the guesswork out
The reason “s corp vs llc” feels complicated is that the right answer depends on your numbers, your state, and a salary figure you have to defend. That’s a lot to carry alone, and it’s precisely the work we do every week.
When you work with AP CPA Advisors, we run your real numbers to find the profit level where the election actually pays off for you, set a reasonable salary you can support, file the election correctly and on time, get payroll running, and then handle the ongoing S Corp return and compliance year to year. It becomes part of your accounting advisory relationship instead of a form you’re left to puzzle over. If you’re weighing whether to form or restructure in the first place, we help with choosing the right entity, too.
We also work the way you actually want to work. AP CPA Advisors takes a modern, remote-first approach, so we can partner with business owners anywhere in the country and keep things moving over screen shares and secure document exchange. You get in-person time when it genuinely helps, and you get your calendar back the rest of the year.
If you’ve outgrown your default LLC taxes, or you just want a straight answer on whether the S corp election is worth it for you, schedule a consultation with AP CPA Advisors or call us at [phone number]. We’ll give you the real math, not a sales pitch.
Frequently asked questions
Is an S Corp better than an LLC?
Neither is “better,” because they aren’t the same kind of thing. An LLC is a legal entity and an S corp is a tax election, and the strongest setup for many owners is an LLC that elects S corp taxation. The right move depends on your profit, your state, and whether you can pay yourself a defensible salary, so it’s worth running the numbers before deciding.
Can an LLC be taxed as an S corp?
Yes, and it’s extremely common. Your LLC stays an LLC for legal purposes and simply files Form 2553 to be taxed under Subchapter S. You keep the entity, the liability protection, and the operating agreement you already have, and change only how the business is taxed.
At what profit does the S Corp vs LLC decision start to favor an S Corp?
As a rough guide, the S corp election tends to pay off once a business consistently nets somewhere around $50,000 to $80,000 or more after a reasonable owner salary. Below that, the added cost of payroll and a separate tax return often cancels out the savings. The exact break-even point depends on your salary, your total profit, and your state, which is why a quick calculation beats a rule of thumb.
What counts as a reasonable salary for an S Corp owner?
It’s the pay a similar business would give someone to do your job, based on your role, experience, hours, and industry. The IRS looks closely at owners who pay themselves a token salary to avoid payroll tax, so the goal is a figure you can defend with real benchmarks, not the lowest number you can imagine. Setting it correctly is one of the main things a CPA handles for S Corp clients.
What’s the deadline to elect S corp status?
For an existing calendar-year business, you generally file Form 2553 by the 15th day of the third month of the year you want the election to apply, which is usually around March 15. A new business gets two months and 15 days from when it starts. If you miss it, late election relief may let you back-date the election up to three years and 75 days, provided you qualify.
Do I have to dissolve my LLC to become an S corp?
No. Electing S corp status doesn’t touch your legal entity. Your LLC keeps its name, its registration, its operating agreement, and its liability protection. You’re only changing the tax classification, not dismantling and rebuilding the business.