LLC vs S Corp: Which Is Better for Your Tax Bill?

If you own a small business, you have probably heard the advice: “Just elect S Corp status and save thousands in taxes.” Sometimes that advice is exactly right. Other times it adds paperwork, payroll costs, and risk for very little gain.

The truth is that “LLC vs S Corp” is not really an either/or question. An LLC is a legal structure. An S Corp is a tax classification. Understanding the difference is the first step to making a decision that actually lowers your tax bill.

LLC vs S Corp: What’s the Difference?

A limited liability company (LLC) is a legal entity created under state law. Its main job is to separate your personal assets from your business debts and lawsuits. By default, the IRS taxes a single-member LLC as a sole proprietorship, and a multi-member LLC as a partnership.

An S Corporation is not a type of company at all. It is a tax election that an LLC or a corporation can make by filing IRS Form 2553. Once approved, the business is taxed under Subchapter S of the Internal Revenue Code, which changes how owner income is taxed.

So the real question is: should your LLC stay taxed by default, or elect to be taxed as an S Corp?

How a Default LLC Is Taxed

With a default LLC, profits pass through to your personal tax return. You pay income tax at your normal rate, plus self-employment tax on your net earnings.

Self-employment tax is 15.3%: 12.4% for Social Security (up to an annual wage base) and 2.9% for Medicare. This applies to nearly all of your net profit, not just a “reasonable” salary. For a profitable owner, that is a big number.

The upside is simplicity. There is no payroll to run, no separate business tax return for a single-member LLC, and very little ongoing compliance.

How an S Corp Changes Your Tax Bill

Under an S Corp election, the business is still a pass-through entity, so profits are not taxed at a corporate level. The difference is how you, as the owner, are paid:

Salary: You must pay yourself a reasonable salary through payroll. This portion is subject to Social Security and Medicare taxes.
Distributions: Remaining profit can be taken as distributions, which are not subject to self-employment tax.

That split is where the savings come from. You still owe income tax on all of the profit, but you only pay payroll taxes on the salary portion.

A Simple Example

Suppose your LLC earns $120,000 in net profit.

Default LLC: Self-employment tax applies to roughly 92.35% of profit. That works out to about $16,950 in self-employment tax.
S Corp with a $60,000 salary: Payroll taxes (employer and employee halves combined) on the salary come to about $9,180. The other $60,000 comes out as distributions with no self-employment tax.

The rough difference is $7,700 per year in payroll tax savings, before accounting for the extra costs of running an S Corp. These figures are illustrative only, and your result will depend on your income, state, and other deductions.

The Hidden Costs of an S Corp

The tax savings are real, but so are the trade-offs. Before you elect, weigh these:

Payroll setup and fees. You need to run payroll for yourself, file quarterly payroll returns, and issue a W-2. Payroll software or a provider typically costs a few hundred dollars a year or more.
A separate tax return. S Corps file Form 1120-S, which usually means higher accounting fees than a simple Schedule C.
State-level costs. Some states charge extra franchise taxes or fees on S Corps. A few do not recognize the election the same way the IRS does.
Stricter rules. S Corps are limited to 100 shareholders, one class of stock, and eligible shareholders (generally U.S. citizens and residents). Special allocations of profit are not allowed the way they are in a partnership.
Reasonable compensation scrutiny. The IRS expects your salary to reflect what you would pay someone else to do your job. Paying yourself too little to dodge payroll tax is a well-known audit trigger.

A common rule of thumb is that the S Corp election starts to make sense once your net profit consistently exceeds roughly $60,000 to $80,000 per year. Below that, the savings often get eaten by the added costs. That is a guideline, not a guarantee.

Don’t Forget the QBI Deduction

Many pass-through owners can claim the Qualified Business Income (QBI) deduction, which allows a deduction of up to 20% of qualified business income, subject to income limits and other rules. Because S Corp owners pay themselves a W-2 salary, that salary generally does not count as qualified business income, so a higher salary can reduce the deduction. The interaction is complicated and worth modeling with a professional rather than guessing.

When an LLC Taxed by Default Is the Better Choice

Staying with a default LLC is usually smarter if:

Your profit is modest or inconsistent.
You are just starting out and want minimal paperwork.
You want flexibility to bring in partners or investors in different ways.
Your state imposes heavy fees on S Corps.

When an S Corp Election Is the Better Choice

The election tends to pay off if:

Your net profit is steady and comfortably above the break-even range.
You are actively working in the business, so a reasonable salary is easy to justify.
You are willing to handle (or outsource) payroll and the extra filings.
You want to reduce self-employment tax in a legitimate, well-documented way.

How to Make the Switch

If you decide to elect S Corp status, the process is straightforward:

Confirm your LLC is eligible.
File Form 2553 with the IRS. Generally this must be done within two months and 15 days of the start of the tax year in which you want the election to take effect.
Set up payroll and decide on a defensible salary.
Keep clean books so distributions and wages are well documented.
File Form 1120-S each year.

Timing matters, so do not wait until tax season to start asking questions.

The Bottom Line

An LLC gives you liability protection. An S Corp election can give you tax savings on top of it, but only when your profit is high enough and steady enough to justify the added complexity. The best choice depends on your income, your state, your growth plans, and how hands-on you want to be with compliance.

If you want help running the numbers for your own situation, the team at Olivantage can walk you through your options. For more guidance on structuring your finances and planning ahead, explore the resources at Olivantage as well.