Most small businesses choose between a sole proprietorship (simplest, no separation of personal liability), an LLC (state filing, can separate business liability, flexible taxes) or a corporation (more formalities, often for growth or investors). Compare costs and protections in your state and ask a tax professional how each choice affects your taxes.
Side by side
| Structure | Setup | Personal liability | Taxes (general) |
|---|---|---|---|
| Sole proprietorship | Little or none (DBA if using a trade name) | Not separated | Business income on your personal return |
| Partnership | Partnership agreement; state filing for some types | Usually shared by partners | Pass-through to partners |
| LLC | State filing and fees | Can be limited | Flexible: pass-through by default, can elect corporate taxation |
| Corporation (C or S) | State filing, bylaws, more formalities | Generally limited | Corporate tax rules; S corps pass income through |
Questions to decide
- How much risk does the work carry (property damage, injuries, contracts)?
- Will you have partners or investors?
- How much paperwork and annual fees can you handle?
- What does your accountant recommend for your income level?
You can change later
Many owners start as sole proprietors and form an LLC as they grow. Changing structure later means new filings and often a new EIN, so plan the switch with a professional.
Worked example
Kim, a freelance bookkeeper, starts as a sole proprietor with a DBA and an EIN, because it is simple and inexpensive. After a year with growing clients, she discusses liability and taxes with an accountant and attorney, and decides to form an LLC. She updates her bank account, contracts, invoices and website footer with the new legal name, and checks whether her professional liability policy needs changes.
Common mistakes
- Choosing based on what a friend did
- Ignoring ongoing fees and paperwork
- Not updating contracts after changing structure
Who to ask
An accountant can explain tax effects and an attorney can explain liability; both are worth a short consultation before deciding.
Common questions
Is an LLC better than a sole proprietorship?
Not always. An LLC can separate liability but adds filings and fees. The right choice depends on your risk, income and state.
Does my structure affect my website?
Your legal name should appear in your website footer, privacy policy and invoices, so decide the structure before publishing those.
Can I change my structure later?
Yes. Many owners start simple and change as the business grows; changes involve paperwork and possibly tax effects.
Does structure affect taxes?
Yes, in different ways. The IRS explains each structure; a tax professional can advise for your situation.
What about S corporation status?
It's a tax election some LLCs and corporations make; ask a tax professional whether it fits.
Sources
Sources checked October 6, 2026. Rules, fees and forms change; confirm details with the agency or provider before you act. This guide is general information, not legal, tax or insurance advice.
Check your domain and prepare your business information
Once your name is settled, check that the domain is free and keep your legal name, phone and address consistent. Your domain is included when we build your website. Start with the free checklist.
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