What LLC Mistakes Can Get Me Sued Personally?

You filed your LLC. You got the certificate. You thought you were protected. You’re not. The LLC mistakes that get you sued personally are the ones nobody warns you about. I’ve spent 20 years in courtrooms watching businesses get destroyed, not by bad luck, but by avoidable mistakes. I’ve seen people lose their homes, their savings, everything, even though they had an LLC. How? Because they made mistakes that let a court ignore the LLC entirely. It’s called piercing the corporate veil, and it happens every single day. Here are 10 mistakes in your legal foundation, and the fix for each.

Mistake 1: Operating without a legal entity

You’d be surprised how many people still run as a sole proprietor. No LLC, nothing. That means you are the business. Every liability the business has is your personal liability. Client sues the business, they’re suing you. The fix: form your entity before you transact. Before your first client, before your first contract, before any money changes hands. No entity means no wall.

Mistake 2: Choosing the wrong entity type

LLC, S-Corp, C-Corp, partnership. They are not the same. I see people who formed an LLC when an S-Corp election would have saved them thousands, or who formed a C-Corp because that’s what startups do and now they’re stuck with double taxation. One size doesn’t fit all. The right entity depends on your income, your growth plans, your taxes, and your state. The fix: get advice from a business attorney and a CPA before you choose. The wrong structure can cost you protection, not just money.

Mistake 3: Mixing personal and business finances

This is the big one, the number one reason courts pierce the veil. It’s called commingling. Personal card for business expenses, business income into your personal checking, personal bills out of the business account, money back and forth whenever you need it. A court sees you treating the LLC as an extension of yourself, so it does too. The fix: separate everything. Separate bank account, separate card, and never cross the streams. Make it crystal clear the LLC is a separate legal person, not your alter ego.

Mistake 4: Treating your LLC like a personal piggy bank

Related to commingling, but its own problem. Your LLC makes money, you want it, so you just take it. No documentation, no formal distributions. But the LLC is a separate legal person with its own money. Pull cash out whenever you feel like it and you’re telling a court the company isn’t separate from you. The fix: take formal, documented distributions, pay yourself a reasonable salary if you’re an S-Corp, and keep records of every dollar that moves between you and the entity.

Mistake 5: Not having an operating agreement

The state filing creates the LLC. The operating agreement governs how it runs. Without one, state default rules decide who makes decisions, how profits are split, and what happens when a member leaves, and those rules are not in your favor. The fix: get an operating agreement, even as a single member. No operating agreement is a massive red flag in litigation. It tells the court you’re not taking this seriously, and courts respond accordingly.

Mistake 6: Using a generic operating agreement off the internet

You know you need one, so you Google a free template or grab a PDF. The problem: that template was written for everyone, which means it was written for no one. Generic protection, no account for your business, your risks, or your state’s laws. I’ve seen agreements that were unenforceable because they didn’t meet state requirements, and ones with provisions that contradicted what the owners actually wanted. The fix: get an agreement built for your business and your state. A generic template is barely better than nothing.

Mistake 7: Not understanding what piercing the corporate veil means

Your LLC creates a legal wall between your business and your personal assets. That wall is the corporate veil. Piercing it is when a court says, we’re going to ignore that wall and let the plaintiff go after the owner personally. Courts weigh factors: commingling, separation, operating agreement, formalities, capitalization, and fraud. The more you trigger, the more likely they pierce. The fix: learn the factors and make sure you don’t trigger them. Your protection is not automatic. You earn it by running the LLC properly.

Mistake 8: Running multiple businesses under one entity

Coaching business in your LLC. Then a real estate venture in the same LLC. Then an e-commerce store in the same LLC. Three businesses, one entity, one big problem. Someone sues the e-commerce store, gets a judgment, and can go after the assets of all three. One lawsuit takes down everything. The fix: separate entities for separate risks. It’s called asset isolation. Each egg in its own basket. Yes, it costs more to maintain. It costs a lot less than losing everything.

Mistake 9: Signing contracts in your personal name

Subtle but deadly. You sign a contract as John Smith instead of John Smith, Member of XYZ LLC. The first signature binds you personally. The second binds the entity. One line is the difference between liability and protection. The fix: always sign as the entity, and make sure the contract names your LLC as the party, not you. Check every signature line.

Mistake 10: Assuming your LLC protects you no matter what

This is the mindset mistake underneath all the others. An LLC is a shield, not a force field. It only protects you if you maintain it. Commingling, no operating agreement, signing personally, ignoring formalities, each one cracks the shield. Crack it enough and it shatters. That’s piercing the veil. The fix: treat your LLC like the asset it is. Annual filings, separate finances, documentation, operating agreement, formalities. You earn your protection. It’s not set-and-forget.

The takeaway

Form the right entity before you transact, with professional advice.

Keep business and personal finances completely separate.

Take formal, documented distributions instead of grabbing cash.

Get a real operating agreement built for your business and state.

Use separate entities for separate risky ventures.

Sign everything in the LLC’s name, never your own.

Maintain filings, formalities, and records so the shield holds.

Bottom line

These are 10 mistakes in one danger zone: your business structure. It’s your legal foundation. Get it wrong and your house, your car, and your savings are all on the table. The operating agreement is the center of that foundation, and the generic version won’t hold. If you want one built for your business instead of a template written for nobody, that’s what The Ultimate Operating Agreement is for. Defense wins championships.

Frequently asked questions

What is the number one mistake that gets LLC owners sued personally?

Commingling, mixing personal and business money. It’s the top reason courts pierce the veil. When a litigator sees the LLC paying personal bills, they argue you and the company are the same, and the protection collapses.

Can I be personally liable even though I have an LLC?

Yes. If a court pierces the corporate veil because of commingling, no operating agreement, undercapitalization, ignored formalities, or signing in your own name, you become personally liable for the business’s debts.

Should I run multiple businesses under one LLC?

No. If one venture gets sued, a judgment can reach the assets of all of them. Use separate entities for separate risks, which is called asset isolation, each egg in its own basket.

How should I sign contracts to stay protected?

Always sign as the entity, for example “John Smith, Member of XYZ LLC,” never just your own name, and make sure the contract names your LLC as the party. One signature line is the difference between liability and protection.

Want to legally bulletproof your business, for free? Start with the free Legal Risk Report and find your blind spots in minutes.

About the Author — Karam Nahas, The BattleTested LawyerTM. A 20-year courtroom veteran who has handled over $1 billion in deals and real litigation, Karam founded Legally BulletproofTM to give entrepreneurs the same legal defense systems big companies use — without big-law prices.

Ready to lock it down? Visit the Contract Library — every contract comes with the training and a 20-year lawyer inside your business, starting as low as $197, and it’s constantly updated and customized.

Educational content, not legal advice.