Sole Proprietorship vs LLC: What the Choice Really Buys
By default, a sole proprietorship and a single-member LLC are taxed identically. Both report business profit on Schedule C, both pay self-employment tax on all of it, and both qualify for the same QBI deduction. Most pages bury this, because "tax advantages" is a more compelling reason to form an LLC than the truth.
The real difference is liability. An LLC separates your business obligations from your personal assets; a sole proprietorship does not. That, not tax, is what the decision should turn on.
Sole proprietorship vs LLC: Side-by-Side
| Sole proprietorship | LLC | |
|---|---|---|
| How it is created | Automatically, by doing business | Filed with your state, with a fee |
| Default federal tax treatment | Schedule C on your personal return | Identical — a single-member LLC is a disregarded entity |
| Self-employment tax | 15.3% on 92.35% of net profit | The same, unless you later elect S-corp treatment |
| QBI deduction | Available | Available — no difference |
| Personal liability | Unlimited — business debts reach personal assets | Limited to the business, if formalities are respected |
| Setup cost | $0 | State filing fee, commonly $50–$500 |
| Ongoing cost | None | Annual report or franchise fee in many states |
| Business bank account | Possible, not required | Effectively required to preserve the liability shield |
| Route to an S-corp election | Not available directly | Available — file Form 2553 |
| How clients perceive it | Trading under your own name | A registered entity, which some clients require |
Which should you choose?
Form an LLC for the liability protection, not for a tax benefit that does not exist by default. If your work could plausibly result in a claim — you enter client premises, handle their data, produce work that could cause financial loss, hold inventory, or sign leases and contracts — the separation is worth a few hundred dollars a year.
Stay a sole proprietor if the risk is genuinely minimal and the income is small: freelance writing for a handful of clients with no employees, no premises, and no inventory is a reasonable case for not bothering yet. Two thresholds should change your mind regardless of risk appetite: profit reaching the level where an S-corp election becomes worthwhile, which requires an entity, and any client who will not contract with an unregistered individual.
The tax treatment is identical, and that is the headline
A single-member LLC is a disregarded entity for federal tax purposes by default. Its profit goes on Schedule C exactly as a sole proprietor's does, self-employment tax applies to all of it at 15.3% of 92.35%, and the qualified business income deduction is available on the same terms. There is no default tax saving, no separate business return, and no different set of deductible expenses.
An LLC does not unlock deductions a sole proprietor cannot take. Business expenses are deductible because they are ordinary and necessary for a trade or business, and a sole proprietor has a trade or business. Anyone suggesting an LLC lets you deduct things you otherwise could not is describing tax fraud, not a structure.
Liability is what you are actually buying
Without an entity, there is no legal distinction between you and the business. A judgment against the business is a judgment against you, and it can reach your savings, your car, and in many circumstances your home. An LLC creates that separation: creditors of the business generally reach business assets rather than personal ones.
The protection is real but conditional. It depends on respecting the separation — a dedicated business bank account, no paying personal expenses from business funds, contracts signed in the LLC's name, and whatever annual filings your state requires. Where owners fail those basics, courts can disregard the entity, and the term for it, piercing the veil, describes exactly what happens to the protection.
It also does not cover everything. An LLC does not shield you from liability for your own professional negligence, and lenders routinely require a personal guarantee on small-business credit, which puts your personal assets back on the line by contract.
At what income is an LLC worth it?
There is no income threshold for the liability question — a first client can generate a claim as easily as a fiftieth, and risk is about what the work involves rather than what it pays. If the work carries real exposure, the entity is worth forming early, when it costs a filing fee rather than a lawsuit.
Income does matter for one specific reason: an S-corp election requires an eligible entity, and a sole proprietor cannot make one. Once profit approaches the level where the election starts to pay — roughly $35,000 at a 50% salary, more if your defensible salary is higher — you need an LLC or corporation in place to take advantage. That makes rising profit a practical trigger even for someone unconvinced by the liability argument. Our S corp tax calculator shows where that point falls for your numbers.
What forming an LLC actually involves
Filing articles of organisation with your state and paying the fee, which commonly runs between $50 and $500. Most states also require an annual report or franchise fee, and a few charge substantially more — worth checking yours before assuming the cost is trivial.
Beyond the filing: get an EIN from the IRS, which is free and lets you avoid giving clients your Social Security number; open a business bank account and route all business income and expenses through it; and write an operating agreement even as a single member, since several states expect one and it documents the separation you are relying on. Registered-agent services are optional unless you want to keep your home address off the public record.
What does not change when you form an LLC
Your tax return, unless you make a further election. Your self-employment tax. Your deductions. Your obligation to pay quarterly estimated taxes. The requirement to report all business income whether or not a 1099 arrives — and note that for 2026 the Form 1099-NEC threshold rose to $2,000, so more genuine income now arrives with no form at all.
What does change is the legal boundary around the business, the paperwork that maintains it, and the availability of an S-corp election later. Setting the expectation correctly matters, because owners who form an LLC expecting a tax cut are frequently disappointed by their first return.
Frequently asked questions
Do you pay more taxes as a sole proprietor than an LLC?
No — by default they are taxed identically. A single-member LLC is a disregarded entity, so its profit goes on Schedule C and pays self-employment tax exactly as a sole proprietor's does, with the same QBI deduction available. A difference only appears if the LLC later elects S-corporation treatment, which is a separate decision with its own costs.
At what income is an LLC worth it?
For liability, there is no income threshold — the question is whether the work could generate a claim, and that is true from the first client. For tax, the relevant trigger is that an S-corp election requires an entity, so once profit approaches roughly $35,000 to $52,000, depending on the salary you could defend, you need an LLC or corporation in place to benefit.
Does an LLC protect my personal assets?
Generally yes, provided you maintain the separation. That means a dedicated business bank account, not paying personal costs from business funds, signing contracts in the LLC's name, and keeping up your state filings. Fail those and a court can disregard the entity. It also will not shield you from your own professional negligence, and lenders often require a personal guarantee that contractually restores your exposure.
Can I deduct more expenses with an LLC?
No. Business expenses are deductible because they are ordinary and necessary for a trade or business, and a sole proprietor has one. An LLC changes the legal wrapper, not the deduction rules. Advice suggesting otherwise usually describes deducting personal expenses, which is not a benefit of any structure.
How much does an LLC cost to maintain?
The state filing fee to form it, commonly $50 to $500, plus an annual report or franchise fee in many states. A handful of states charge considerably more, so check yours specifically rather than relying on a national average. Beyond that, the running cost is the discipline of keeping business and personal finances separate — which costs nothing but has to actually happen.
Should I form an LLC before I have clients?
If the work carries meaningful liability, forming early is cheaper than forming after a problem. If you are testing whether the business works at all, starting as a sole proprietor and forming later is a reasonable sequence — you can move the activity into an LLC once it has revenue. What is not sensible is delaying because you expect a tax benefit, since there is not one by default.
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Sources
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