A single-member LLC is taxed exactly like a sole proprietorship by default. Same Schedule C, same self-employment tax, same rate.
If you formed an LLC expecting a smaller tax bill, that assumption is the single most common misunderstanding in this whole decision, and it is worth clearing up before anything else.
What an LLC actually does is create legal separation between you and your business. A sole proprietorship has none, your personal assets, your car, your savings, your house, are exposed to a business debt or lawsuit.
This guide covers what that protection actually means, what it does not cover, actual state-by-state costs, and when a sole proprietorship is actually fine to start with instead.
This is factual, general information, not personalized legal or tax advice.
Confirm your specific situation with a licensed attorney or accountant before making a final decision.
Key Takeaways
- An LLC does not lower your tax bill by default. A single-member LLC is taxed identically to a sole proprietorship, the same Schedule C, the same self-employment tax rate.
- The actual protection is legal separation of assets, not a tax break. Without an LLC, your personal assets are directly exposed to a business lawsuit or debt.
- LLC protection has real limits. It only holds up if the LLC is run correctly, separate bank account, clean bookkeeping, and it does not replace liability insurance.
- State cost varies enormously. Most states run $100 to $300 a year, California is a notable outlier at roughly $900 a year due to its franchise tax.
- The actual decision factor is risk exposure, not revenue. Selling something that could physically harm someone matters more than how much money you are making.
[IMAGE: LLC versus sole proprietorship comparison showing liability protection and real state costs | LLC for online store guide]
What an LLC Actually Protects
An LLC creates a legal separation between you personally and your business. If the business is sued or owes a debt, your personal assets, savings, home, car, are generally not on the line, only what the business itself owns.
A sole proprietorship has no such separation. You and the business are legally the same entity. A lawsuit against your store is, legally, a lawsuit against you personally.
This protection is genuine, but it depends on how the LLC is actually run. A separate business bank account, clean bookkeeping, and genuine compliance with your state’s requirements are what make the legal separation hold up.
An LLC that shares a bank account with your personal finances and skips its paperwork can lose that protection when it actually matters.
What an LLC Does Not Do
- It does not automatically lower your taxes. A single-member LLC is taxed exactly like a sole proprietorship by default, both file Schedule C, both pay self-employment tax, 15.3 percent on the first $168,600 of income in 2026, plus 2.9 percent above that, plus an additional 0.9 percent surtax above $200,000 for single filers
- It does not eliminate sales tax obligations. LLC or not, you owe sales tax anywhere you have nexus, forming an LLC changes nothing about where or when you need to collect it
- It does not replace liability insurance. LLC protection has real limits, product liability insurance and general business liability coverage fill gaps the LLC structure alone does not cover
Real Cost by State
State filing fees for forming an LLC typically range from $50 to $500 upfront, with ongoing annual costs varying just as widely.
- Most states: total annual cost, filing fee plus any annual report, commonly runs $100 to $300 a year
- California: a well-known outlier at roughly $900 a year, driven by the state’s $800 annual franchise tax on top of standard filing fees
- Formation services: a service like Northwest Registered Agent commonly runs around $39 plus your state’s filing fee for first-year setup, DIY filing directly with your state is usually cheaper still
Worked example
- Sole proprietorship: $0 in state fees, just your regular tax filing
- LLC in a typical state: $100 to $300 a year in ongoing costs
- LLC in California: roughly $900 a year
- The actual cost difference between sole proprietorship and LLC, outside California, is usually $100 to $300 a year, a modest cost against the liability protection it buys
When a Sole Proprietorship Is Genuinely Fine
- You are testing a business idea, not yet committed to running it long term
- You are running a low-risk side hustle, digital products or low-liability items with minimal chance of a customer injury claim
- You have very little in personal assets to actually protect, the liability protection matters less when there is less exposure on the other side
If you choose this path specifically to avoid a state’s LLC fee, carry liability insurance to cover the gap that decision leaves open.
When an LLC Actually Matters
- You sell a product that could physically harm someone. Food, supplements, electronics, children’s products, cosmetics, anything that could reasonably trigger a product liability claim
- You have meaningful personal assets to protect. A home, meaningful savings, anything a lawsuit could actually reach without the legal separation an LLC provides
- You are scaling past a side project. Increasing order volume means increasing exposure, the risk that made a sole proprietorship reasonable at low volume compounds as the business grows
The real decision factor here is risk exposure, not revenue. A small store selling something with real injury potential has more reason to form an LLC than a much larger store selling something inherently low-risk.
The S-Corp Election, a Separate Decision
An LLC’s default tax treatment and an S-Corp election are two different things, easy to conflate but worth separating clearly.
Electing S-Corp tax status, available once an LLC exists, can reduce self-employment tax meaningfully once net profit reaches a specific threshold, commonly cited around $80,000 a year, where the savings can run roughly $3,000 to $5,000 annually.
Below that threshold, the added payroll and accounting complexity of an S-Corp election commonly outweighs the tax savings.
This is a actually separate decision from whether to form an LLC at all, confirm your specific numbers with an accountant before electing S-Corp status.
Setting Up an LLC Yourself vs Hiring a Lawyer
- DIY is commonly fine for a simple, single-member LLC. File directly with your state, use a template operating agreement, get your EIN from the IRS directly, no lawyer required for this simple case
- A lawyer is worth it for anything more complex. Multi-member LLCs, an equity split between partners, or outside investment all introduce genuine complexity a template cannot safely cover
A common mistake here. Forming the LLC after already operating under a personal name and personal accounts, then never actually moving contracts, platform accounts, and banking over to the LLC’s name.
The legal separation an LLC provides only works if your actual business operations reflect it.
FAQ for LLCs and Online Stores
Does forming an LLC lower my tax bill?
No, not by default. A single-member LLC is taxed exactly like a sole proprietorship, the same Schedule C filing and the same self-employment tax rate, unless you separately elect S-Corp tax treatment.
What does an LLC actually protect me from?
It creates legal separation between your personal assets and your business, so a business lawsuit or debt generally cannot reach your personal savings, home, or other assets, provided the LLC is run correctly with its own bank account and proper compliance.
How much does an LLC actually cost per year?
It depends heavily on your state. Most states run $100 to $300 a year in ongoing costs, California is a well-known outlier at roughly $900 a year due to its state franchise tax.
Is a sole proprietorship risky for an online store?
It carries genuine risk if your business could face a lawsuit or significant debt, since your personal assets have no legal separation from the business. It is a reasonable starting point for testing an idea or a actually low-risk side hustle, ideally paired with liability insurance.
Do I need a lawyer to form an LLC?
Not usually for a simple, single-member LLC, DIY filing with your state and a template operating agreement is commonly sufficient. A lawyer becomes worth it for multi-member LLCs, equity splits, or outside investment.
Does an LLC remove my sales tax obligations?
No. LLC or not, you owe sales tax anywhere you have nexus, forming an LLC has no effect on where or when sales tax collection is required.
