Sole Proprietor vs LLC: Which Bank Account Do You Need?

The question people ask is which account to open. The question that decides it is whether the business is legally separate from you — because that is what an LLC creates, and a bank account is where that separation is either maintained or quietly destroyed.

What actually changes

Note what does not change: forming an LLC does not by itself change how you are taxed. A single-member LLC is disregarded for federal tax purposes and still files Schedule C unless it elects otherwise. If tax is your reason for forming one, read S-corp vs LLC first.

If you are a sole proprietor

You can legally run everything through a personal checking account. Most banks' personal account agreements prohibit business use, so it may breach the terms even where it is lawful — but nothing about your liability changes either way, because there is no separation to protect.

Open a separate account anyway, for three practical reasons: deductions are far easier to substantiate when business spending sits in one place, an audit of a mixed account pulls your personal transactions into scope, and getting paid to an account in your trading name looks like a business rather than a hobby.

If you trade under a name that is not your own legal name, you will need a DBA registration before a bank will take checks made out to that name.

If you have an LLC

A separate account stops being a convenience. The liability shield depends on the LLC being treated as a genuinely separate entity, and the clearest evidence that it is not is a single account paying both the supplier invoice and your rent. In a dispute, that is the first thing the other side's lawyer asks for.

Paying yourself is not the problem. An owner's draw from the business account to your personal account, recorded as such, is normal and expected. The problem is the business account used directly as a personal wallet, and the personal account receiving business income. See the risk of commingling funds.

When to switch

Switch from personal to business banking when any of these are true: you have formed an entity, you have employees or contractors to pay, you are accepting card payments, you are trading under a business name, or your bookkeeping has stopped being obvious to you.

Switch from sole proprietor to LLC when the liability actually matters — customers on your premises, work that could cause loss, or a contract that requires it. Not because the bank account looks better.

Related

Next: how to open the account, or open a business account without an LLC. Also setting up an LLC for a side hustle and filing taxes with side hustle income.

Common questions

Do I need a business bank account as a sole proprietor?

Not legally. Most personal account agreements bar business use, and mixed records make deductions harder to prove, so a separate account is still the right call.

Does an LLC have to have its own bank account?

No statute says so, but the liability protection depends on the LLC being treated as separate from you. A shared account is the most common way that protection is lost.

Can I pay myself from the LLC account?

Yes. A recorded owner’s draw transferred to your personal account is normal. Using the business card for personal purchases is the thing to avoid.

Does forming an LLC lower my taxes?

Not on its own. A single-member LLC is taxed the same as a sole proprietorship by default. Tax changes come from an S-corp election, not from the LLC itself.