LLC vs S-Corp vs Sole Proprietor: Which Entity to Choose
The entity you choose on day one will shape your taxes, liability exposure, and fundraising options for years. Most first-time founders pick wrong — not because the rules are hard, but because no one explains the tradeoffs plainly. Here is the honest comparison.
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The Quick Answer
For most solo founders and small teams: start with an LLC. It gives you liability protection and tax flexibility without the administrative overhead of an S-Corp. Upgrade to S-Corp tax treatment when your net profit consistently exceeds $60,000-$80,000 per year. Sole proprietorship is only right if you are testing an idea with zero liability risk and plan to formalize within 90 days.
Side-by-Side Breakdown
Sole Proprietorship: Cost to form $0. No liability protection. All profit is self-employment income. Best for freelancers testing a concept.
LLC: Cost $50-$500 in state fees. Personal assets are shielded. Taxed as sole prop by default, or elect S-Corp treatment. Best for most small businesses.
S-Corp: Same formation cost as LLC if you elect S-Corp status on an existing LLC. You pay yourself a reasonable salary subject to payroll taxes and take remaining profit as distributions not subject to self-employment tax. Best for profitable businesses with $60K+ annual net income.
C-Corp: Only relevant if you plan to raise venture capital or issue multiple share classes.
When to Choose a Sole Proprietorship
Choose sole proprietorship only if: you are testing a concept and expect to generate under $5,000 in revenue before formalizing, you have no clients who could sue you, and you plan to form an LLC within 60-90 days. The liability protection of an LLC is worth the $100-$300 state filing fee the moment you have a real customer.
When to Choose an LLC
Choose an LLC if: you are launching any real business, you have clients who could potentially hold you liable, you want the option to elect S-Corp tax treatment later without restructuring, or you have a business partner. The LLC is the right default for the vast majority of small business founders.
When to Choose S-Corp Treatment
You do not form an S-Corp separately from an LLC in most cases. You form an LLC, then file IRS Form 2553 to elect S-Corp tax treatment. Do this when your net profit exceeds $60,000-$80,000 consistently, you are comfortable running payroll, and you have a CPA who can manage quarterly filings. Tax savings on $100,000 net profit can be $5,000-$8,000 per year.
The Verdict
Start with an LLC. Use a formation service to file for under $200 total. Revisit S-Corp election with your CPA once you are consistently profitable. Never operate as a sole proprietor longer than necessary if you have real customers.
How to Get Started
Use ZenBusiness or Northwest Registered Agent to file your LLC. It takes 10-15 minutes online and costs $0-$150 plus your state's filing fee. Once active, get your EIN from irs.gov for free, open a business bank account, and schedule an hour with a CPA to discuss whether S-Corp election makes sense for your projected income.
RECOMMENDED TOOLS
ZenBusiness
Fast LLC formation with registered agent included
Northwest Registered Agent
Privacy-first formation with strong customer support
Bizee
Free LLC formation — pay only state fees
IRS Business Structures
Official IRS guide to entity types and tax implications
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FREQUENTLY ASKED QUESTIONS
Can I convert my sole proprietorship to an LLC later?
Yes, but you will need to re-register with vendors, update contracts, open a new bank account, and potentially transfer assets. It is cleaner to start as an LLC from day one.
Does an LLC protect me from everything?
No. An LLC shields your personal assets from business debts and most lawsuits, but not from personal guarantees, your own negligence, or payroll tax obligations.
How much does S-Corp election save in taxes?
On $80,000 net profit, typically $4,000-$6,000 per year in self-employment taxes after accounting for payroll processing and added accounting fees.
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