Sole proprietor, LLC or S corp: when each one actually saves money

This decision generates more bad advice than anything else in freelance finance, mostly from people selling formation services. Two things get conflated constantly, so it is worth separating them before anything else.

Legal structure is whether you are a sole proprietor, an LLC, a partnership or a corporation. It determines liability.

Tax classification is how the IRS treats you. It is a separate choice, and it is where all the tax savings live.

An LLC is a legal structure. By default it changes nothing whatsoever about your taxes. That single fact contradicts most of what you will be told.

Sole proprietor: the default

Do freelance work without forming anything and you are a sole proprietor. Profit goes on Schedule C, self-employment tax on Schedule SE, and it all flows onto your personal return.

Costs: nothing. Tax: self-employment tax on 92.35% of profit, plus income tax. Liability: none. Your personal assets are exposed to business claims.

For most freelancers starting out, this is genuinely the right answer. The tax treatment is identical to a single-member LLC, and you can form one later in an afternoon.

LLC: liability protection, zero tax change

A single-member LLC is a “disregarded entity” for federal tax. You file exactly the same Schedule C, pay exactly the same self-employment tax, and your return looks identical.

It does not reduce your tax by a single dollar. Anyone implying otherwise is either confused or selling something.

What it does do is separate your business liability from your personal assets, provided you maintain that separation properly: a dedicated business bank account, no paying personal expenses from business funds, contracts in the LLC’s name. Blur those lines and a court can disregard the protection entirely.

Costs: state filing fees from around $50 to several hundred, plus annual report fees and, in some states, a franchise tax. California charges an $800 minimum franchise tax every year regardless of profit — which for a small side business can exceed the value of the protection.

Worth it when: you have meaningful liability exposure, clients require it, or you want the professional appearance. Not for tax reasons.

S corp: the one that actually saves tax

This is a tax election, not a legal structure. An LLC or a corporation can elect it by filing Form 2553.

The mechanism is straightforward. As a sole proprietor, all your profit is subject to self-employment tax. As an S corp, you split it:

• a reasonable salary you pay yourself, which is subject to payroll tax
• the remaining distributions, which are not

On $120,000 of profit with a $70,000 salary, the $50,000 of distributions escapes the 15.3% self-employment tax. That is roughly $7,000 of tax saved.

Why it is not free money

The costs are real and recurring:

• Payroll. You must run actual payroll with withholding and quarterly filings. A service costs $500–$1,500 a year.
• A separate tax return. Form 1120-S is due March 15, and an accountant will charge $800–$2,000 for it.
• Higher bookkeeping standards. Sloppy records that were survivable on a Schedule C are not on a corporate return.
• State treatment varies. Some states tax S corps regardless of the federal election.

Realistically that is $1,500–$3,500 a year in additional cost before you save anything.

The “reasonable salary” problem

You cannot pay yourself $10,000 and take $110,000 as distributions. The salary must be reasonable for the work you do, and this is an area the IRS actively examines.

Reasonable generally means something like market rate for your role. Set it too low and the risk is not merely paying the tax you avoided — it is back taxes, penalties and interest. The aggressive splits promoted online are exactly the ones that attract attention.

The QBI interaction

An S-corp salary is wages, and wages are not qualified business income. So paying yourself a salary reduces your QBI deduction at the same time as it reduces your self-employment tax.

Below the QBI thresholds this makes the S corp meaningfully less attractive than the simple 15.3% arithmetic suggests. Above them it can reverse, because W-2 wages are exactly what the QBI wage limit measures.

This is genuinely difficult to optimise by hand, and it is the strongest argument for paying an accountant to model your specific numbers before electing.

Where the line actually falls

The honest thresholds, for a typical freelancer with no employees:

• Under $50,000 profit — sole proprietor. An LLC if you want liability protection. An S corp will cost more than it saves.
• $50,000–$80,000 — marginal. The savings roughly cancel the compliance costs. Worth modelling, not worth assuming.
• $80,000–$150,000 — an S corp usually wins, often by $3,000–$8,000 a year net of costs. This is the range where it genuinely makes sense.
• Above $150,000 — almost always worth it, though the Social Security wage base ($184,500 in 2026) caps part of the benefit, since profit above that point only avoids the 2.9% Medicare portion rather than the full 15.3%.

That last point is widely misunderstood. The S-corp saving is largest in the band below the wage base and shrinks above it.

What to do

Start as a sole proprietor. Form an LLC when liability or client requirements justify it — not for tax. Revisit the S-corp question once profit is consistently above $80,000, and model it with an accountant rather than a blog post, because the QBI interaction and your state’s treatment can move the answer several thousand dollars either way.

The calculator below shows what you owe as a sole proprietor, which is the baseline any S-corp comparison has to beat.