LLC vs Sole Proprietorship

A sole proprietorship is the simplest form of business ownership. It is not a separate legal entity — it is just you doing business. If you earn money from a side gig, freelance work, or any business activity without formally creating a business entity, you are automatically a sole proprietor.

There is no paperwork to file to "create" a sole proprietorship. You simply start doing business. You may need a local business license or a DBA ("doing business as") registration if you operate under a name other than your legal name, but there is no state formation filing.

While the simplicity is appealing, the key drawback is that you and your business are legally the same entity. All business debts are your personal debts, and all lawsuits against the business are lawsuits against you.

A Limited Liability Company (LLC) is a formal business entity that you create by filing Articles of Organization with your state. Unlike a sole proprietorship, an LLC is a separate legal entity from its owners.

This separation is what provides the "limited liability" — your personal assets are generally protected from business debts and lawsuits. For a complete overview, see our What Is an LLC guide.

This is the most significant difference between the two structures and the primary reason most people choose to form an LLC.

Sole Proprietorship: Unlimited Personal Liability

As a sole proprietor, there is zero separation between you and your business. If a client sues your business, they are suing you personally. If your business cannot pay a debt, creditors can come after your personal savings, your home, your car, and any other personal assets.

Business insurance can help mitigate some of this risk, but it does not provide the same structural protection as an LLC.

LLC: Limited Personal Liability

An LLC creates a legal barrier between your personal assets and business obligations. If the LLC is sued or cannot pay its debts, only the assets owned by the LLC are generally at risk — not your personal bank account, home, or other assets.

This protection is not absolute. If you fail to maintain the LLC properly (for example, by commingling personal and business funds), a court could pierce the corporate veil. But when maintained correctly, the LLC provides meaningful protection that a sole proprietorship simply cannot offer.

By default, a sole proprietorship and a single-member LLC are taxed exactly the same way — all profits flow through to your personal tax return on Schedule C, and you pay self-employment tax (15.3%) on the net profit.

The difference is that an LLC has the option to elect different tax treatment:

• S-corp election: If your LLC is profitable enough, electing S-corp taxation can significantly reduce your self-employment tax burden. Instead of paying self-employment tax on all profits, you pay yourself a reasonable salary (subject to payroll taxes) and take the remaining profits as distributions (not subject to self-employment tax). Learn more in our LLC vs S-Corp comparison.
• C-corp election: Rarely used for small businesses, but available if your situation warrants it.

A sole proprietorship does not have these options. You are stuck with pass-through taxation and full self-employment tax on all profits.

Sole Proprietorship Costs

A sole proprietorship costs essentially nothing to start and maintain. You may need a local business license ($25 to $100) or a DBA registration ($10 to $100), but there are no state filing fees, annual reports, or registered agent requirements.

LLC Costs

An LLC involves several costs:

• State filing fee: $35 to $500 (one-time)
• Formation service (optional): $0 to $49
• Registered agent: $0 to $300/year
• Annual report: $0 to $300/year (varies by state)
• Franchise tax: $0 to $800/year (varies by state — California is $800)

For a detailed breakdown, see our LLC cost guide.

A sole proprietorship has almost no compliance requirements beyond general business licenses and tax filings. An LLC requires more paperwork but far less than a corporation.

Typical LLC compliance includes:

• Filing Articles of Organization (one-time)
• Creating an operating agreement (one-time, with periodic updates)
• Filing annual or biennial reports with the state
• Maintaining a registered agent
• Filing a BOI report with FinCEN (check current requirements)
• Keeping business and personal finances separate

While this is more than a sole proprietorship, it is still manageable. Many formation services offer compliance monitoring to help you stay on track.

Operating as an LLC signals to clients, vendors, and lenders that you are running a serious business. Having "LLC" after your business name provides a level of professionalism and legitimacy that a sole proprietorship often lacks.

This matters most when:

• Signing contracts with larger companies (many require you to be a formal entity)
• Applying for business credit or loans
• Seeking investment
• Building trust with new clients, especially in professional services

If you are currently a sole proprietor and decide to form an LLC, the process is straightforward:

1. File Articles of Organization with your state to create the LLC.
2. Obtain an EIN for the LLC (even if you already have one as a sole proprietor).
3. Open a new business bank account in the LLC's name.
4. Transfer business assets (contracts, accounts, licenses) to the LLC.
5. Update your DBA, business licenses, and vendor agreements to reflect the LLC.
6. Create an operating agreement.
7. Notify clients, banks, and vendors of the change.

The entire process can be done in a few days to a few weeks. A formation service can handle most of the paperwork for you. See our best LLC formation services for recommendations.