LLC vs Sole Proprietorship
One difference matters a lot. The rest matter less than you think.
Verdict: the only major difference is liability protection. Taxes are identical for a single-owner LLC, so if you are choosing between them for tax reasons, there is no decision to make.
If you are earning money on your own and have not filed anything, you are already a sole proprietor. It is the default. You did not choose it, you just started working.
The difference that matters
As a sole proprietor, you and the business are legally the same thing. A business debt is your debt. A lawsuit against the business is a lawsuit against you, and your house and savings are within reach.
An LLC separates them. The business owes its own debts and gets sued in its own name. Your personal assets sit behind a wall.
That wall is not unconditional. It holds when you treat the LLC as a real separate business: its own bank account, its own records, contracts signed in the company's name. It can be set aside when you run everything through your personal checking account.
Taxes are the same, and this surprises people
A single-member LLC is what the IRS calls a disregarded entity. It does not file its own return. The profit goes on Schedule C of your personal return, exactly as a sole proprietor's does, and carries the same 15.3% self-employment tax on top of income tax.
Same profit, same forms, same tax. Forming an LLC does not change your tax bill by a dollar.
What an LLC does give you is an option. Once formed, you can elect S corporation treatment, which can cut self-employment tax by splitting profit into salary and distributions. A sole proprietor cannot make that election without forming an entity first. Whether it is worth it depends on your numbers, which is what the S corp calculator is for.
Cost and paperwork
A sole proprietorship costs nothing and requires no filing. You may want a DBA if you trade under a name other than your own, which is usually a small county fee.
An LLC costs a state filing fee of roughly $40 to $500, then typically an annual report fee, and a registered agent if you use one. It also adds recurring obligations: keeping the registration current and keeping the finances separate. See the full cost breakdown.
How to choose
| Question | Sole proprietor | LLC |
|---|---|---|
| Personal assets at risk | Yes | Protected, if you keep things separate |
| Cost to start | $0 | $40 to $500 |
| Ongoing filings | None | Usually an annual report |
| How profit is taxed | Schedule C | Schedule C, identical |
| Can elect S corp | No | Yes |
Stay a sole proprietor while you are testing an idea, earning a little, and doing low-risk work. Form an LLC when the business is real, you have assets to protect, or you are taking on obligations in the business's name. Our three-question test makes that call concrete.
Frequently asked questions
No. A single-member LLC is a disregarded entity, so the profit goes on Schedule C and carries the same self-employment tax. The tax difference is zero unless you elect S corporation treatment.
Yes, at any time. You form the LLC, move your business banking and contracts into its name, and carry on. The protection applies from the day the LLC exists.
Only if you do business under a name that is not your own legal name. It is usually a small county or state filing.
No. It protects your personal assets from business debts and claims. It does not protect you from your own negligent acts, from debts you personally guarantee, or from unpaid payroll taxes.