The core difference between an LLC and a sole proprietorship is liability. A sole proprietorship is you doing business under your own name, so business debts and lawsuits can reach your personal savings, car and home. A limited liability company (LLC) is a separate legal entity that, when it is set up and run properly, keeps business liabilities with the business. Taxes, by default, can be almost identical.
Key takeaways
- A sole proprietorship needs no formation filing; an LLC is created by filing with your state.
- Both are taxed as pass-through businesses by default, and both owners usually pay self-employment tax.
- The LLC’s main advantage is limited personal liability; its main cost is state fees and some ongoing paperwork.
What is a sole proprietorship?
A sole proprietorship exists automatically the moment one person starts doing business without forming an entity. There is nothing to file with the state, although you may need a local business license and, if you trade under a name other than your own, a “doing business as” (DBA) registration.
Legally, you and the business are the same person. Profits are yours, and so are the debts. If a customer sues or the business cannot pay a supplier, the claim can be collected from your personal assets.
What is an LLC?
An LLC is formed by filing articles of organization (sometimes called a certificate of formation) with the secretary of state. Owners are called members. Most states also expect an operating agreement, an internal document that sets out ownership, management and what happens if a member leaves.
Because the LLC is its own legal person, contracts, bank accounts and debts belong to the company. That separation is what protects the owners.
LLC vs sole proprietorship at a glance
| Sole proprietorship | LLC | |
|---|---|---|
| Formation | Automatic; DBA if you use a trade name | State filing plus operating agreement |
| Personal liability | Unlimited | Generally limited to what you invest |
| Default taxes | Schedule C on your personal return | Single-member: same as sole proprietor; multi-member: partnership return |
| Tax options | None | Can elect S corporation or C corporation treatment |
| Cost | Minimal | State filing fee and, in many states, an annual report or tax |
| Banking and contracts | Harder to keep finances separate | Bank account and contracts in the company’s name |
How are taxes different?
Often, they are not. The IRS treats a single-member LLC as a “disregarded entity,” so its income goes on Schedule C exactly like a sole proprietorship. In both cases the owner pays income tax plus self-employment tax on the profit.
The difference is flexibility. An LLC can elect to be taxed as an S corporation. Owners then pay themselves a reasonable salary through payroll and take remaining profit as distributions that are not subject to self-employment tax. Whether that saves money depends on your profit level and the extra payroll and accounting costs, so run the numbers with a tax professional.
How much protection does an LLC really give?
Limited liability is strong but not absolute. Courts can “pierce the veil” and hold owners personally liable when the company is treated as an alter ego: mixing personal and business money, leaving the company badly undercapitalized, or using it to commit fraud.
Two other gaps are common. You are always responsible for your own negligence or professional mistakes, and lenders and landlords often ask small business owners to sign a personal guarantee, which puts your assets back on the line for that debt. Good insurance remains important with either structure.
What does it cost to form and keep an LLC?
State filing fees range from under $100 to several hundred dollars. Many states also charge an annual or biennial report fee, and a few impose a yearly franchise or minimum tax (California’s is $800 a year). You also need a registered agent with a physical address in the state, which can be you or a paid service.
When does a sole proprietorship make sense?
- You are testing an idea with low risk and little revenue.
- Your work carries little chance of injury, property damage or large contract disputes.
- You want the least paperwork while you decide whether the business will last.
When is an LLC the better choice?
- You have customers on your premises, employees, vehicles or physical products.
- You sign leases, loans or larger contracts.
- You have personal assets worth protecting, or a co-owner joins the business.
- Your profit is high enough that an S corporation election could reduce taxes.
Switching later is possible. Many owners start as sole proprietors and form an LLC once the business grows; contracts, accounts and licenses then move into the company’s name.
Frequently asked questions
Can a sole proprietor have employees?
Yes. You will need an Employer Identification Number (EIN), payroll tax registration and, in most states, workers’ compensation insurance.
Is an LLC worth it for a side business?
It depends on the risk. A freelance designer working from home may be fine as a sole proprietor with insurance; someone running events or selling products people consume has more reason to form an LLC.
Does an LLC protect me if I make a mistake myself?
No. An LLC shields you from the company’s debts and from claims against the business, not from liability for your own wrongful acts.
Business rules and fees differ by state and change over time. Check your secretary of state’s website and speak with an attorney or accountant before choosing a structure. If you protect your brand next, read how to trademark a business name.
