LLC vs Sole Proprietorship: Pros, Cons & How to Choose

A sole proprietorship is the simplest way to run a business in the US: no state filing, no annual reports, almost no cost. Its big weakness is that you and the business are legally the same, so business debts and lawsuits can reach your personal savings, car or home. An LLC costs more and adds some paperwork, but it puts a legal wall between the business and your personal assets.

For tax purposes, the two are treated the same by default. So for most owners, the decision comes down to one question: how much risk does your business carry?

The quick comparison

Sole proprietorship: pros and cons

Pros

• Nothing to form. If you start doing business on your own, you're already a sole proprietor.
• Lowest cost. You may only need a DBA if you use a business name other than your own, plus any local licenses.
• Simple taxes. Business profit goes on Schedule C with your personal return.
• Easy to close. You can stop at any time without dissolving a company.

Cons

• Unlimited personal liability. If the business is sued or can't pay its debts, creditors can go after your personal assets.
• Harder to separate finances. It's easy for business and personal money to blur together.
• Less room to grow. You can't add co-owners without changing structure, and some clients or lenders prefer working with a registered entity.

LLC: pros and cons

Pros

• Liability protection. Your personal assets are generally protected from the business's debts and from lawsuits against the business.
• Flexible taxes. By default you're taxed like a sole proprietor, but you can later switch to S corporation taxation with IRS Form 2553.
• Professional standing. An LLC can make it easier to open business accounts, sign contracts in the company's name and look established to clients.
• Room for partners. You can add members later without starting over.

Cons

• Formation cost. You pay your state's filing fee, and possibly a registered agent service.
• Ongoing fees and filings. Most states require annual or periodic reports. Some charge annual taxes too: California, for example, charges every LLC doing business or organized there an annual tax of $800, even in a year with no business activity.
• More discipline. To keep your protection strong, you need a separate bank account and clean records.

Taxes: less different than you'd think

Many owners form an LLC expecting to save on taxes. By default, they won't. The IRS treats a single-member LLC as a disregarded entity, meaning its income is reported on the owner's personal return, generally on Schedule C, exactly as a sole proprietor would.

Both structures also pay self-employment tax on net earnings of $400 or more. That rate is 15.3%, made up of 12.4% for Social Security and 2.9% for Medicare, with the Social Security portion applying up to an annual earnings limit.

Where an LLC opens a door is tax elections. An LLC can opt for S corporation tax treatment, which changes how owners pay themselves and can reduce self-employment tax once profits are high enough. It also adds payroll and extra tax filings. This is worth discussing with a tax professional when your profit grows, not on day one.

Liability: what an LLC does and doesn't protect

An LLC's main benefit is limited liability, but the limits matter. It generally protects your personal assets if the business can't pay a supplier, loses a contract dispute or is sued over something the company did.

It doesn't protect you from everything:

• Your own actions. If you personally cause harm through negligence, you can still be held responsible.
• Personal guarantees. Many lenders and landlords ask small business owners to personally guarantee loans or leases.
• Mixing money. If you run personal expenses through the business account or treat company money as your own, a court may decide the LLC isn't really separate.

That's why many owners also carry business insurance. An LLC and a good general liability policy work best together.

How to choose

A sole proprietorship can be a sensible starting point if your work is low-risk, you're testing an idea or earning modest side income, and you don't have employees, a lease or significant debt.

An LLC usually makes more sense if any of these apply:

1. You work in customers' homes or businesses, or handle their property.
2. You sign leases, take on business loans or buy equipment on credit.
3. You plan to hire employees or contractors.
4. You have significant personal assets you want to protect.
5. You plan to bring in a partner or seek outside funding.
6. Clients or platforms you work with prefer, or require, a registered business.

Think about the worst realistic day for your business. If a single bad job or lawsuit could cost more than you'd be willing to lose personally, that's a strong sign to form an LLC.

Switching later

You don't have to get this perfect on day one. Many owners start as sole proprietors and form an LLC once the business proves itself. To switch, you register the LLC with your state, get an EIN if needed, open a business bank account and move contracts, licenses and accounts into the LLC's name. The formation steps are covered in our step-by-step US business registration guide.

The bottom line

Choose a sole proprietorship for simplicity when risk is low and you're just getting started. Choose an LLC when you have something to protect or you're building for the long term. Since both are taxed the same by default, the extra cost of an LLC is really the price of protection, and for many growing businesses, it's worth paying.

This article is general information, not legal or tax advice. Rules vary by state, so check with an attorney or accountant about your situation.