LLC vs. Sole Proprietorship

Liability Protection Is the Core Difference

A sole proprietorship makes no legal distinction between the business and its owner: the owner's personal assets, home, car, personal savings, are exposed to the business's debts and any lawsuit against it. An LLC creates a separate legal entity that generally shields the owner's personal assets from the business's liabilities, as long as the owner keeps the LLC's finances separate and follows its formalities. This protection is the main reason freelancers and small business owners outgrow sole proprietorship status as the business takes on more risk, such as signing contracts, hiring employees, or carrying inventory.

Formation Cost and Process

A sole proprietorship requires no state filing or fee at all; you're automatically a sole proprietor the moment you start doing business in your own name, though you may still need a DBA filing if you operate under a different name, and any license your industry or location requires. An LLC requires filing Articles of Organization with the state and paying a filing fee that ranges from $35 in Montana to $500 in Massachusetts, plus naming a registered agent with a physical address in the formation state.

Ongoing Costs Differ Too

A sole proprietorship generally has no recurring state filing requirement tied to its business structure. An LLC typically owes an annual report, biennial statement, or franchise tax, ranging from $0 to $500 a year depending on the state, to stay in good standing, on top of any registered agent cost.

Taxation Is the Same by Default

Both structures are taxed the same way under the IRS's default rules: a sole proprietorship reports income and expenses on Schedule C of the owner's personal tax return, and a single-member LLC, as a disregarded entity, does exactly the same thing. Both pay self-employment tax on net business earnings. The difference shows up only if the LLC elects a different tax classification, such as S corporation status, an option that isn't available to a sole proprietorship, since there's no separate entity to make the election.

Credibility and Banking

Some banks, vendors, and larger clients prefer working with a formal business entity rather than an individual operating under their own name, and an LLC can project more credibility in contract negotiations or when applying for business financing. A sole proprietorship can still open a business bank account and get an EIN, but it's opening that account as an individual doing business, not as a separate legal entity.

What Happens When the Owner Leaves or Dies

A sole proprietorship ends automatically when the owner stops operating the business or passes away; there's no entity left to continue or sell as a going concern, only individual assets that could be sold off separately. An LLC, by contrast, can specify in its operating agreement how ownership transfers if a member leaves, retires, or dies, allowing the business itself to continue operating under new ownership.

Adding a Second Owner

A sole proprietorship is, by definition, a single-owner structure; adding a second owner who shares in profits and control turns the business into a general partnership automatically, whether or not the owners intend that result, with each partner personally liable for the business's debts. An LLC can add members formally through its operating agreement without changing its underlying liability protection for existing members.

Business Insurance Still Matters for Both

Forming an LLC doesn't replace the need for business insurance; it protects personal assets from the business's debts and lawsuits generally, but doesn't prevent the LLC itself from being sued or from losing its own assets in a judgment. A sole proprietorship has an even stronger case for insurance, since there's no entity-level separation to limit the owner's exposure at all. Both structures benefit from general liability or professional liability coverage matched to the specific risks of the business.

Using a DBA Doesn't Change the Underlying Liability Picture

A sole proprietor who registers a DBA to operate under a business-sounding name is still personally liable for everything; the DBA only changes what name appears on contracts and marketing, not the legal structure underneath it. Owners sometimes mistakenly believe a DBA provides the same protection an LLC does, which isn't the case.

Weigh the Ongoing Cost Against the Protection

An LLC's state filing fee and ongoing annual report cost are a real, recurring expense a sole proprietorship doesn't have. For a very low-risk, low-revenue side business, that cost may outweigh the liability protection benefit; for a business signing contracts, carrying inventory, or working with the public, the protection is usually worth the cost.

The Protection Isn't Automatic or Absolute

An LLC's liability shield depends on actually treating the LLC as separate from yourself: a dedicated bank account, your own signature only in the LLC's name on contracts, and not mixing personal and business funds. Courts can disregard the separation, sometimes called piercing the corporate veil, if an owner doesn't maintain these basics.

Converting Later Is Possible

If you start as a sole proprietor, you can convert to an LLC later once the business grows or takes on more risk; see our guide on converting a sole proprietorship to an LLC for the steps involved, including when you can keep your existing EIN.

This Isn't Tax or Legal Advice

Which structure fits your specific situation depends on your risk exposure, your revenue, and your state's specific fees and rules. Talk to an attorney or tax professional about your particular business before deciding between the two.

A Registered Agent Comes With the LLC Choice

Choosing an LLC also means maintaining a registered agent with a physical address in the formation state, an ongoing requirement a sole proprietorship doesn't have. Factor this into your comparison of the two structures' total cost, not just the one-time filing fee.

Revisit the Decision as the Business Changes

A structure that made sense for a solo side project may no longer fit once you hire your first employee, sign a commercial lease, or take on a client whose contract requires a formal business entity. Reassess whether a sole proprietorship still matches your risk level at each significant milestone, rather than assuming the original choice should last indefinitely.