Single-member LLC: the complete 2026 guide

A single-member LLC (SMLLC) is the most common business structure for solo founders in the U.S. — and the one most often misunderstood. This guide covers how it actually works for taxes, what liability protection you get, and the mistakes that cost solo owners that protection.

What is a single-member LLC?

A single-member LLC is exactly what it sounds like: a Limited Liability Company with one owner (the “member”). It’s a legal entity at the state level — but for federal taxes, the IRS treats it as a “disregarded entity” by default. That means the LLC itself files no federal income tax return; its income flows through to your personal Form 1040, usually on Schedule C.

The disregarded entity rule, explained

“Disregarded” sounds bad. It’s actually the simplest possible setup. You report business income and expenses on Schedule C of your personal tax return — same as a sole proprietor. The LLC still exists as a legal entity, still gives you liability protection, still has its own EIN if you got one. The IRS just doesn’t make you file a separate 1065 partnership return.

Liability protection (and how to keep it)

The whole point of an LLC is that creditors of the business can’t come after your personal assets — your house, your car, your savings. But that protection is conditional. Courts will “pierce the corporate veil” and treat your LLC as if it didn’t exist if you:

• Pay personal expenses from the LLC bank account (or vice versa)
• Don’t maintain a separate business bank account at all
• Don’t have an Operating Agreement
• Sign contracts personally instead of as the LLC
• Skip annual reports and lose “good standing” with the state

Charging order protection in SMLLCs

A “charging order” limits what a personal creditor can do — typically just attach distributions, not seize the LLC. Multi-member LLCs get strong charging-order protection in nearly every state. Single-member LLCs are murkier: courts in Florida (Olmstead) and Colorado have allowed creditors to step in and force liquidation of the SMLLC. Wyoming, Delaware, and Nevada specifically extend strong charging-order protection to SMLLCs by statute. If asset protection is your main goal, those three states are the standouts.

Don’t want to file yourself? Northwest Registered Agent files your LLC for $39 + state fee and acts as your registered agent the first year free.

S-corp election for single-member LLCs

Once your SMLLC is netting roughly $50,000+ in profit, electing to be taxed as an S-corp can save meaningful self-employment tax. The basic mechanic: you become an employee of your own LLC, pay yourself a “reasonable” salary (subject to payroll tax), and take the rest as distributions (not subject to the 15.3% self-employment tax).

The trade-offs: real payroll, real bookkeeping, a separate Form 1120-S filing, and IRS scrutiny on whether your salary is “reasonable.” Below ~$50K of profit, the costs usually exceed the savings.

State-by-state: where to form your SMLLC

For 90% of solo owners, the right answer is the state where you actually live and work. Forming in Wyoming when you live in California means you pay both Wyoming and California — California will treat your “Wyoming” LLC as a foreign LLC doing business in CA and charge you the $800 minimum tax anyway.

Real reasons to form out-of-state:

• Wyoming for asset-protection-focused holding companies
• Delaware if you plan to raise venture capital
• New Mexico for anonymity (no member names on Articles)

See the full list with state-specific fees and rules in our 50-state directory.