S Corp vs LLC: Which Is Better for Your Small Business?

The short version: An LLC is the simpler, more flexible structure and the right default for most new small businesses. An S Corp isn't a separate legal entity at all, it's a tax election you can put on top of an LLC once your profit is consistently high enough to make the paperwork worth it, usually somewhere around $60,000 to $80,000 in net profit a year. Below that, the extra accounting cost often eats the tax saving.

I work with small business owners across the US, UK and Israel, and the S Corp question comes up constantly, usually from someone who's just had a good year and heard the phrase "self-employment tax" from a friend who sounded very sure of themselves. So let's work through it, with numbers, not vibes.

What an LLC is

A Limited Liability Company is a legal structure. It separates your personal assets from your business debts. If your business gets sued or can't pay a supplier, your house and savings are generally protected, assuming you've kept business and personal finances separate (more on that later, because plenty of people don't).

By default, a single-member LLC is taxed as a "disregarded entity," meaning the IRS treats it like a sole proprietorship for tax purposes. All the profit flows through to your personal tax return, and you pay self-employment tax (15.3% in 2026, covering Social Security and Medicare) on the entire net profit, not just a salary.

This is the bit people miss: LLC is a legal label. "S Corp" is not a competing legal label, it's a tax election. You can have an LLC that elects to be taxed as an S Corp. You don't have to choose one or the other as if they're rival species.

What an S Corp election changes

When an LLC (or a regular corporation) elects S Corp status with the IRS, using Form 2553, the owner becomes an employee of their own business. That means:

• You must pay yourself a "reasonable salary" through payroll, with taxes withheld like any employee
• Only that salary is subject to self-employment-style payroll taxes
• Remaining profit can be taken as a distribution, which avoids the 15.3% self-employment tax entirely
• You now have to run actual payroll, file an extra tax return (Form 1120-S), and in many states pay for a separate business tax filing

That distribution loophole is the entire reason S Corps exist as a popular small business choice. It's also the part that gets abused, which brings me to the uncomfortable truth most articles on this topic skate past.

The "reasonable salary" rule is where people get caught out

Plenty of blog posts will tell you to pay yourself a tiny salary and take the rest as distributions, because distributions aren't taxed for Social Security and Medicare. What they don't say loudly enough is that the IRS requires your salary to be "reasonable" for the work you do, and they absolutely do audit this. If you're a consultant billing clients $150 an hour and you pay yourself $20,000 a year while taking $90,000 in distributions, that's not a grey area, that's a flag. The IRS has reclassified distributions as wages in enforcement cases for exactly this pattern, and the penalties include back payroll taxes plus interest.

A sensible benchmark is to pay yourself roughly what you'd pay someone else to do your job, which an accountant can help you set using comparable salary data for your role and location. It's not a number you pick to minimise tax, it's a number you can defend if asked.

A worked example

Say you run a freelance web design business as a single-member LLC, and in 2026 you net $90,000 in profit after expenses.

As a default LLC (sole proprietorship taxation), you'd owe self-employment tax of 15.3% on that $90,000, roughly $13,770, on top of regular income tax.

Now say you elect S Corp status and pay yourself a reasonable salary of $55,000, taking the remaining $35,000 as a distribution. Payroll taxes (both employer and employee share, which you now pay both sides of) apply only to the $55,000 salary, roughly $8,415. The $35,000 distribution avoids that tax entirely. That's a saving of around $5,000 a year.

But you now need to run payroll (a payroll service typically costs $40 to $100 a month), file a separate S Corp tax return (an accountant will often charge $800 to $1,500 for this on top of your personal return), and in some states pay a franchise or entity-level tax regardless. Once you net those costs off, the real saving might be closer to $2,500 to $3,500. Still worth it at $90,000 profit. At $40,000 profit, it almost certainly isn't, because the extra costs can wipe out most or all of the saving.

Where the break-even point usually sits

Most accountants I've heard discuss this put the S Corp election worth considering somewhere between $60,000 and $80,000 in consistent annual net profit, not revenue. The gap matters because a business doing $200,000 in revenue with thin margins might net $35,000, and that business gets zero benefit from the extra admin.

Three questions worth asking before you elect:

• Is this profit level consistent, or was this one unusually good year?
• Can you commit to running actual payroll, including quarterly filings?
• Does your state charge extra for S Corps (California, for example, charges a 1.5% franchise tax on S Corp income)?

Other differences worth knowing

LLCs are far simpler to set up and wind down. In most US states you file articles of organization and pay a fee ranging from $50 (Kentucky) to $500 (Massachusetts). An S Corp election adds ongoing compliance: payroll runs, a separate tax return, corporate minutes in some states, and stricter rules about who can own shares (no more than 100 shareholders, and they generally must be US citizens or residents).

LLCs also allow more flexible profit splitting among multiple owners, which can matter if you've got partners contributing unequal amounts of capital or time. S Corps must distribute profit strictly according to ownership percentage, which can box you in if your partnership agreement is more creative than a straight 50/50 split.

If you're earlier in the decision and haven't settled on a structure at all, UK readers comparing options should look at the equivalent breakdown in our guide to sole trader vs limited company, since the UK doesn't have an S Corp equivalent but the simplicity-versus-tax-efficiency trade-off is the same conversation.

The admin you're signing up for

Once you've got an S Corp election running, you need tighter financial housekeeping than a straightforward LLC, because you're now tracking salary, distributions, and business expenses as separate streams for the IRS to see. This is where a real profit and loss statement stops being a nice-to-have and becomes something your accountant will ask for every quarter. I'd also push anyone making this move to tighten up how they track spending generally, because mixing personal and business card purchases is one of the fastest ways to lose the liability protection an LLC is supposed to give you in the first place; decent expense management software solves this for about $10 to $15 a month per user and saves your accountant hours at tax time, which usually saves you money too.

When I'd tell someone to just stay an LLC

If your profit is under $50,000, if it swings wildly year to year, if you hate admin and would rather pay a bit more tax than deal with payroll, or if you're a single-owner service business still finding your pricing, stay a plain LLC. The S Corp election is a tool for a specific stage of business, not a badge of seriousness. I've seen people elect S Corp status the same year they registered their LLC, purely because a podcast told them to, and then spend more on compliance than they saved in tax. Don't be that person.

Running the business well matters more than the entity type. Keeping your goals and numbers visible, using something like OKR software to track whether you're heading toward that $70,000 profit threshold, will do more for your bottom line than an early tax election ever will.

Getting real advice

Everything here is general information, not tax advice specific to your situation, and tax rules vary by state and change year to year, so talk to a CPA or enrolled agent before you file Form 2553. If you're building out the systems side of your business at the same time, whether that's your invoicing, your expense tracking, or how you present yourself online (including sorting out basics like your Instagram business account settings so your branding matches your new entity name), it's worth getting a second pair of eyes on the whole setup rather than just the tax form. If you want hands-on help getting your systems and processes aligned once your structure changes, that's the kind of thing an AI consultant for small business can help streamline alongside your accountant.

I keep every related walkthrough in the AI for Small Business: 25 Plain-English Guides to Automation, Marketing, Sales and Admin.

Frequently asked questions

Can I switch from LLC to S Corp later without starting over?

Yes. You keep your existing LLC and simply file Form 2553 with the IRS to elect S Corp tax treatment, usually within 75 days of the start of the tax year you want it to apply to, or you can request late election relief in some cases. Your LLC's legal structure, bank accounts and contracts don't change.

Do I need an S Corp to protect my personal assets?

No. Liability protection comes from forming an LLC (or corporation) in the first place, not from the S Corp tax election. The election only changes how profit is taxed, not whether your personal assets are shielded.

How much profit do I need before an S Corp is worth it?

Most accountants suggest somewhere around $60,000 to $80,000 in consistent net profit is where the self-employment tax savings start reliably outweighing the extra payroll and filing costs, though your state's specific fees can shift that number.

Can a multi-member LLC elect S Corp status too?

Yes, it works the same way, but every owner working in the business must be paid a reasonable salary through payroll, and profit distributions must match ownership percentages exactly, with no flexible splitting allowed.