Here is a quick overview of a Single-Member Limited Liability Company (SMLLC):

• For businesses with one owner
• Must keep business and personal funds separate
• Protection of personal assets if business is sued
• Income taxes filed with a Schedule C attached to your personal tax return

The single-member LLC is a great option for a single owner, who wants more liability protection than a sole proprietorship, but isn’t ready to take the leap to become an S Corporation. 

If you properly keep your business and personal purchases separate, the LLC will limit your liability in the event that something happens and you are sued. It doesn’t make you invincible though. If the court decides that you haven’t kept things separate enough, it could break down that protection, and your personal assets could still be taken.

To create a SMLLC, you will register with your state. Each state has their own form, but it’s usually called “Articles of Organization” or something similar. In some states, the annual fees can be minimal (less than $200), but in others, like California, fees can be closer to the $1,000 range.

You would report your annual income and expenses exactly like a sole proprietor, by using the Schedule C.

Tax treatment of a single-member LLC

A single-member LLC is, by default, a disregarded entity for federal tax purposes. That means the IRS treats it as if it doesn’t exist for income tax — all profit and loss flows through to the owner’s personal Form 1040 via Schedule C. The LLC itself doesn’t file an income tax return.

This default tax treatment is identical to a sole proprietorship: you’ll owe income tax on your net profit AND self-employment tax (15.3% of net earnings up to the Social Security wage base) on top.

You can change the tax treatment by filing one of:

• Form 2553 — elect S-Corporation taxation. Reduces self-employment tax by routing income through a reasonable salary + distributions split. Worth it once net profit consistently exceeds ~$50,000/year.
• Form 8832 — elect C-Corporation taxation. Rarely beneficial for single owners due to double taxation, but sometimes used for specific fringe-benefit strategies.

Liability protection nuances

The main reason most people form a single-member LLC is liability protection — your personal assets are generally safe from business debts, contracts, and most lawsuits. But the shield is not absolute:

• The “corporate veil” can be pierced if you commingle personal and business funds, fail to maintain LLC formalities (separate bank account, business records, contracts in the LLC name), or use the LLC to commit fraud.
• Personal guarantees on loans or leases bypass the LLC protection entirely.
• Professional malpractice isn’t shielded — your own negligence is always your personal liability.
• Single-member LLCs face weaker creditor protection than multi-member LLCs in some states. In Florida (after the Olmstead case) and a few others, creditors of a single-member LLC owner can sometimes force the sale of the LLC interest. Multi-member LLCs are limited to “charging orders” in most states.

Strong practice: maintain a separate business bank account, use a business credit card, sign all contracts as “[Your name], Member of [LLC Name],” and file the state’s annual report on time.

State filing fees and ongoing requirements

Costs vary significantly:

• Formation: Articles of Organization filing fee. $35 (Kentucky) to $500 (Massachusetts). Most states $50-$150.
• Annual report: $0 (Arizona, Missouri, Ohio, etc.) to $300+ (Massachusetts, Connecticut).
• Franchise / minimum tax: California $800/year (regardless of profit), Delaware $300/year, Tennessee 6.5% on net income, New York City unincorporated business tax 4%.
• Registered agent service: $0 (if you serve as your own) to $300/year (commercial service).

For small businesses, forming in your home state is almost always the right move. Forming in Delaware or Wyoming for tax benefits is a myth for solo owners — you’ll still pay your home state’s fees as a foreign-entity registration, and you’ll add Delaware fees on top.

When a single-member LLC is the wrong choice

• Hobby income or side gig under $5,000/year: The state filing fees and tax complexity outweigh the liability protection. Sole proprietorship is fine.
• Planning to add partners soon: Start as a multi-member LLC from the beginning — easier than converting later.
• Heavy investment from outside (VC, angel): Investors expect a C-Corp with multiple stock classes.
• Real estate flipping: Many CPAs prefer Series LLCs in supporting states or separate LLCs per property.
• Operating in California: The $800/year minimum franchise tax can be a significant burden for low-revenue businesses.

FAQs about single-member LLCs

Do I need an EIN for a single-member LLC?

Not strictly required by the IRS if you have no employees and don’t file specific tax forms, but you’ll usually want one anyway. Most banks require an EIN to open a business account, and using your SSN on contractor 1099 forms creates identity-theft risk. Get an EIN for free at irs.gov.

How do I pay myself from a single-member LLC?

By default, you take owner’s draws — simply transfer money from the business account to your personal account. There’s no payroll, no W-2, no salary. You’ll owe income tax + self-employment tax on the LLC’s net profit (not on the amount you withdraw). If you elect S-Corp status, you’ll pay yourself a W-2 salary plus distributions.

Can my single-member LLC have employees?

Yes. The LLC can hire employees, pay them via standard payroll (with withholding), and the LLC files Forms 941, 940, and W-2s. The owner remains a Schedule C filer for the LLC’s profit — they aren’t an employee of their own LLC unless they’ve elected S-Corp status.

What happens to my LLC when I die?

It depends on the operating agreement. In states with default rules, a single-member LLC may automatically dissolve on the owner’s death unless the operating agreement specifies continuation (e.g., transfer to a named successor or to the estate). Best practice: write a one-page operating agreement specifying what happens to the LLC interest on death, even if you’re the only member.