S-Corp vs. LLC: Which One Saves You More on Taxes? (2026 Guide)

If you run a US small business, you’ve probably heard that “switching to an S-corp” can save you thousands in taxes. It’s one of the most common questions we get from founders — and also one of the most misunderstood. The truth is that an LLC and an S-corp aren’t the same kind of thing at all, and comparing them the wrong way leads to expensive mistakes.

This guide breaks down the difference in plain English: how each is taxed, exactly where the tax savings come from, and the profit level where electing S-corp status usually starts to make sense.

First, clear up the biggest misconception

An LLC (Limited Liability Company) is a legal structure. It’s created at the state level and mainly protects your personal assets from business liabilities.

An S-corp (S corporation) is a tax election with the IRS — not a business structure you form at the state level. Here’s the key point most owners miss: an LLC can choose to be taxed as an S-corp. So it’s rarely “LLC or S-corp.” It’s usually “keep my LLC’s default tax treatment, or have my LLC elect S-corp taxation.”

How an LLC is taxed by default

By default, the IRS treats a single-member LLC as a “disregarded entity” (taxed like a sole proprietor) and a multi-member LLC as a partnership. In both cases, the business itself pays no income tax — the profit “passes through” to your personal return.

The catch: on a default LLC, your entire net profit is subject to self-employment (SE) tax — 15.3% (12.4% Social Security up to the annual wage base the IRS sets each year, plus 2.9% Medicare) — on top of regular income tax. On $100,000 of profit, that SE tax alone can be well over $14,000.

How an S-corp is taxed — and where the savings come from

When your LLC elects S-corp status, you split your income into two buckets:

• A reasonable salary — paid to you as a W-2 employee. This is subject to payroll taxes (Social Security and Medicare).
• 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 whole game. By paying yourself a reasonable salary and taking the rest as distributions, you legally avoid the 15.3% SE tax on the distribution portion.

Quick example. Say your business nets $100,000. As a default LLC, all $100,000 is hit with SE tax. As an S-corp, you might pay yourself a $55,000 reasonable salary (payroll taxes apply) and take $45,000 as distributions (no SE tax) — saving roughly $6,000–$7,000 in a typical year. The exact number depends on a defensible salary and your specific situation.

S-corp vs LLC at a glance

The catch: an S-corp isn’t free

The savings are real, but so are the costs and rules:

• You must run payroll. That means a payroll service, tax deposits, and quarterly filings. (New to this? See our guide on payroll for small businesses.)
• “Reasonable salary” is not optional. The IRS requires you to pay yourself a defensible market-rate salary before taking distributions. Pay yourself too little and it’s an audit flag.
• Extra tax filing. An S-corp files its own return (Form 1120-S) in addition to your personal return — so bookkeeping and tax-prep costs go up.
• State fees. Some states charge franchise taxes or fees on S-corps that can eat into the savings.

So when does an S-corp actually make sense?

As a rule of thumb, the S-corp election starts to pay off once your business is netting roughly $40,000–$80,000+ in consistent annual profit — enough that the SE-tax savings on your distributions comfortably outweigh the added payroll and filing costs. Below that, the extra complexity usually isn’t worth it.

It also matters that your profit is stable. A one-off good year is different from a business that reliably clears the threshold every year.

How to make the switch (the short version)

1. Confirm the numbers make sense for your profit level.
2. File Form 2553 with the IRS to elect S-corp status (deadlines apply — don’t wait until year-end).
3. Set a reasonable salary and start running payroll.
4. Keep clean books so your salary/distribution split is documented and defensible.

That last point is the one owners underestimate. An S-corp only saves you money if your books cleanly separate salary from distributions and back up your numbers — which is exactly where a good bookkeeper earns their fee. Speaking of which, here’s what bookkeeping actually costs.

Frequently asked questions

Can a single-member LLC be an S-corp?

Yes. A single-member LLC can elect S-corp taxation by filing Form 2553 — you don’t need partners or to change your legal structure.

Do I save on income tax with an S-corp?

No — the savings are on self-employment (payroll) tax, not income tax. Your profit is still subject to regular income tax either way.

What is a “reasonable salary”?

Roughly, what you’d have to pay someone else to do your job. The IRS looks at your role, experience, hours, and industry pay. Too low invites scrutiny.

This article is general information for US small business owners, not tax or legal advice. Your situation is unique — please consult a qualified professional (or reach out to us) before making an entity or tax election decision.