Want to start your own business — or formalize the one you already have? Should you stay a sole proprietor? File for an LLC? Is S-Corp status actually worth the extra paperwork?
If you're self-employed, freelancing, or running a small business, the structure you choose answers three real questions: How much will I actually pay in taxes? How much paperwork am I signing up for? And is my personal home, car, and savings at risk if something goes wrong?
There are five core structures the IRS and SBA recognize — sole proprietorship, general partnership, LLC, S-Corp, and C-Corp — and each one answers those three questions differently.
How Many Types of Business Are There — 4, 5, or 7?
If you've seen different numbers in different places, here's why: it depends on how the source groups things.
- 4 types: groups S-Corp and C-Corp together under one "corporation" category, and leaves out LP/LLP entirely.
- 5 types (what this guide uses): separates S-Corp from C-Corp since they're taxed very differently, but still excludes LP/LLP.
- 7 or more types: adds in limited partnerships (LP), limited liability partnerships (LLP), and sometimes nonprofit or cooperative structures.
None of these counts is "wrong" — they're just answering slightly different questions. This guide uses the 5-type breakdown because S-Corp and C-Corp are taxed so differently that lumping them together hides the decision that actually matters for most small business owners.
Sole Proprietorship
This is the default you're automatically operating as the moment you start doing freelance or contract work without registering anything else. There's no legal separation between you and the business — which makes it the simplest structure to start, but also the least protected. If the business is sued or can't pay a debt, your personal assets (your car, your savings, potentially your home) are on the line.
General Partnership
Same basic idea as a sole proprietorship, just with more than one owner. The real risk here: each partner can typically be held personally liable for the business's debts — including debts run up by the other partner, not just their own actions. Many partnerships eventually convert to an LLC specifically to fix this exposure.
LLC (Limited Liability Company)
An LLC is a legal structure, not a tax status. By default, a single-member LLC is taxed exactly like a sole proprietorship (all income flows to your personal return), and a multi-member LLC is taxed like a partnership. The real value of an LLC is the liability shield — your personal assets are legally separated from the business's. That's the whole reason most freelancers and small business owners eventually form one, even before thinking about taxes at all.
S-Corp — A Tax Election, Not an Entity
This is the one that trips people up: S-Corp isn't a legal business structure at all — it's a tax election you file on top of an LLC or a corporation you already have. Electing S-Corp status lets you split your income into a salary (subject to payroll tax) and distributions (not subject to payroll tax), which is where the potential savings come from. We cover this in much more depth, including real numbers, in our full S-Corp tax savings guide.
C-Corp
A C-Corp is a fully separate legal and tax entity from its owners. It pays a flat 21% federal corporate tax rate on its profits, and if those profits are later distributed to shareholders as dividends, the shareholders pay tax on that money again personally — commonly called double taxation. Combined, this can push the effective rate on distributed profits to roughly 30-40%. For most freelancers and small business owners, this makes a C-Corp a poor fit — it's really built for companies planning to raise outside investment or reinvest most of their profits rather than pay themselves from them.
Side-by-Side Comparison
| Structure | Liability | Taxation | Complexity |
|---|---|---|---|
| Sole Proprietorship | Unlimited personal | Personal return only | None — automatic |
| General Partnership | Unlimited, shared | Pass-through to each partner | Low |
| LLC | Limited | Pass-through by default | Moderate — state registration |
| S-Corp (election) | Inherits LLC/Corp protection | Pass-through, split salary/distribution | Higher — payroll required |
| C-Corp | Limited | Double taxation on distributed profits | Highest |
Which One Should You Choose?
There's no universally "best" structure — only what fits your income, risk, and growth plans right now:
- Just starting out, low income, testing an idea: sole proprietorship is fine to start — you can always upgrade later.
- Two or more people, but not ready for formal paperwork: general partnership works, but weigh the shared-liability risk carefully.
- Any real revenue or client-facing risk: an LLC is usually worth the state filing fee, purely for the liability protection.
- Consistent income above roughly $60,000-$80,000: worth running the numbers on an S-Corp election — see our S-Corp Tax Calculator for your specific numbers.
- Planning to raise outside investment or reinvest most profits: a C-Corp is worth a serious conversation with a business attorney or CPA.