Is an LLC taxed differently than a sole proprietorship?

By default, no. The IRS disregards a single-member LLC, so the profit lands on the owner's personal return on Schedule C with self-employment tax, exactly as a sole proprietorship. The LLC adds the option to elect S corporation or C corporation treatment later, but out of the box the tax picture is identical.

What does an LLC protect that a sole proprietorship does not?

A sole proprietor and the business are legally the same person, so business debts and lawsuits reach personal assets directly. A properly maintained LLC is a separate legal person: business creditors generally must collect from business assets. The protection has real limits either way: your own negligence, personal guarantees, and certain taxes stay personal.

Do I need an LLC to have a legitimate business?

No. A sole proprietorship is a fully legal business the moment you start operating; you can deduct the same expenses, get an EIN, register a DBA name, and open a business bank account. The LLC adds liability separation and costs, not legitimacy.

When should a sole proprietor switch to an LLC?

When the liability exposure or the income justifies the state's costs: physical work on other people's property, products that could injure, advice businesses rely on, contracts or clients that require an entity, a partner joining, or income that is no longer pocket money. For low-risk service work, general liability insurance often protects better per dollar than an entity.

LLC vs Sole Proprietorship: The One Difference That Matters

Strip away the marketing and this comparison is short: by default the two are taxed identically, so you are not choosing a tax strategy. You are choosing whether liability separation is worth your state's fees and paperwork. Here is each piece, honestly.

What each one actually is

A sole proprietorship is what you automatically are when you do business without registering an entity: you and the business are the same legal person. It is fully legal, requires no state filing (a DBA name registration at most), and its profit goes on Schedule C of your personal return.

An LLC is a separate legal person created by a state filing. It owns its contracts, debts, and lawsuits. By default the IRS ignores it for tax purposes, which is why the tax outcome starts out identical; what changes is who is on the hook when something goes wrong.

Side by side

	Sole proprietorship	LLC (default taxation)
Cost to start	$0 (DBA registration if you use a trade name)	$35 to $500 state filing fee, by state
Recurring cost	None	$0 to $800 per year depending on state
Federal taxes	Schedule C, self-employment tax	Identical by default; S/C corp elections available later
Deductions	Same ordinary and necessary business expenses	Same; the entity adds nothing here
Liability	Business debts and lawsuits reach personal assets	Business creditors generally limited to business assets, when maintained properly
Paperwork	None beyond taxes and licenses	Registered agent, annual or biennial report, clean separation of finances
Credibility and contracts	Some clients will not onboard unregistered vendors	Standard for vendor onboarding, business banking, and partners

The tax myth, retired

"Get an LLC for the write-offs" is the most common false pitch in this industry. Deductions follow from having a business, not from the entity: a sole proprietor deducts home office, mileage, equipment, and supplies on Schedule C exactly as a single-member LLC owner does. The IRS treats the two identically until an election is filed. If someone sells you an LLC as a tax move, they are describing the S corp election, which is separate, optional, and only worthwhile at profit levels that clear its own costs.

What the LLC does not protect

Your own conduct. You always answer for your own negligence and wrongdoing; the entity shields you from business obligations, not from being the person who caused harm.
Debts you personally guarantee. Banks and landlords routinely require personal guarantees from small LLC owners, which puts those debts right back on you.
Sloppy separation. Commingled money, an unfunded shell, or signing contracts in your own name invite courts to pierce the veil and ignore the LLC.
Certain taxes. Trust-fund payroll taxes, for one, follow the responsible person regardless of entity.

A practical decision rule

Stay a sole proprietor (with insurance) while the work is low-risk services, the income is modest, and no client demands an entity; a general liability policy often protects better per dollar than a filing. Form the LLC when physical risk, product risk, reliance on your advice, a partner, contract requirements, or real income arrive. When you do, the process is six steps and one mandatory fee, laid out in how to start an LLC, with every state's costs on the state table.

Comparing formation services?

If the LLC is the right call, every service pays the same state fees. We compare what they charge on top.

See the comparison

Frequently asked questions

Can a sole proprietor get an EIN and a business bank account?

Yes to both. The EIN is free from the IRS for any business, and banks open sole proprietor accounts with an EIN or SSN plus any DBA registration. Neither requires an entity.

Does an LLC help me build business credit?

It helps establish the business as a distinct borrower, but early small-business credit almost always rides on the owner's personal guarantee anyway. Treat credit as a minor factor, not the reason to form.

Is a DBA the same as an LLC?

No. A DBA (doing business as) is just a registered trade name with no liability protection; a sole proprietor with a DBA is still personally liable. An LLC can also register DBAs for brand names it operates under.

What happens to my sole proprietorship when I form the LLC?

You move the business in: new EIN where required, contracts and accounts retitled to the LLC, licenses updated. From that point, keep the finances separate; the protection depends on it.

Sources

This page is general educational information, not legal or tax advice. Liability and tax outcomes depend on your facts and state; consult an attorney or tax professional about your situation.