Why People Do This
A huge number of businesses begin life as sole proprietorships — it's the free, automatic default. Then revenue grows, the first employee gets hired, a big contract appears, or the owner simply realizes their personal assets are exposed. That's when "I should make this a real LLC" kicks in. The good news: transferring an existing business into an LLC is a well-trodden, manageable process. It's not starting over — it's moving what you already have into a protective wrapper.
Here's the full sequence, including the intangible step most checklists skip: your brand.
Step 1: Form the LLC
The transfer starts with simply forming the LLC the normal way: choose your state (usually where you operate), confirm the name is available, appoint a registered agent, file the Articles of Organization, and pay the state fee. Our how to form an LLC guide covers each step.
One transfer-specific detail: get a new EIN for the LLC. Your sole proprietorship's EIN (or your SSN) doesn't carry over — the LLC is a new legal entity and needs its own EIN from the IRS (free, takes minutes). You'll use the LLC's EIN for its bank account and taxes going forward.
Step 2: Open a Business Bank Account in the LLC's Name
This is the financial heart of the transfer. Open a dedicated business bank account in the LLC's name, using the LLC's EIN. From here on, all business income and expenses run through this account — never your personal account. This separation isn't bureaucratic box-ticking; it's the thing that actually makes the liability protection real (more on that at the end).
Step 3: Move the Assets Into the LLC
Your business assets currently belong to you personally. To get the liability protection, they need to belong to the LLC:
- Equipment, inventory, tools. Transfer ownership to the LLC. For a simple sole prop, this is often documented with a straightforward bill of sale or a capital contribution recorded in your books.
- Cash. Move operating funds into the LLC's bank account as your initial capital contribution.
- Larger or titled assets (vehicles, real estate) may need formal retitling — worth checking the rules and tax implications, sometimes with an accountant.
Step 4: Reassign Contracts, Leases, and Accounts
Anything currently in your personal name should move to the LLC where possible:
- Client and vendor contracts — going forward, sign as the LLC. Existing contracts may need assignment or simply re-signing at renewal; some require the other party's consent.
- Leases (office, equipment) — ask the landlord/lessor to reassign to the LLC.
- Vendor and service accounts — update billing and account names to the LLC.
- Business licenses and permits — update or re-apply under the LLC; many are tied to the legal entity.
- Insurance — update policies to name the LLC as the insured.
Step 5: Don't Forget the Brand (The Step Everyone Skips)
Here's the part generic checklists miss. Your business name and brand are assets too — and they need to live with the LLC, not float between you and the company.
Two scenarios:
If you already hold a trademark personally, you should formally assign it to the LLC so the entity owns the brand it's using. A trademark used by the LLC but owned by you personally creates a messy ownership gap — see our guide on trademark assignment for how to record it with the USPTO.
If you never trademarked your name (most sole proprietors haven't), the transfer is the perfect moment to finally do it — and to file the trademark in the LLC's name from the start. You're already formalizing the business; formalizing the brand at the same time means the entity that operates under the name also legally owns it.
Remember: forming the LLC does almost nothing to protect your brand name (see does an LLC protect your business name?). So if the name matters, the trademark is the piece that actually secures it — and the transfer is a natural time to handle it.
Step 6: Wind Down the Sole Proprietorship Cleanly
Once everything has moved, tie off the old structure: cancel or convert any DBA that was tied to you personally (re-file it under the LLC if you still use that operating name), notify clients and vendors of the new entity, and update your website, invoices, and email signatures to reflect the LLC. Keep clear records of the transfer date for tax purposes.
The Most Important Part: Keep It Separate Afterward
The transfer gives you the liability shield — but only if you maintain it. The single fastest way to lose LLC protection is to keep treating the business like a personal piggy bank: paying personal bills from the business account, or vice versa. Courts can "pierce the corporate veil" when an owner doesn't respect the separation, erasing the very protection you set all this up to get. Run the LLC as its own thing — separate account, contracts in its name, clean books — and the protection holds.
Frequently Asked Questions
How do I transfer my sole proprietorship to an LLC?
Form the LLC normally (state filing, registered agent, Articles of Organization), get a new EIN for it, then migrate your business into it: open a business bank account in the LLC's name, transfer assets and cash as a capital contribution, reassign contracts, leases, licenses, and insurance to the LLC, and handle your brand (assign an existing trademark or file a new one under the LLC). Then wind down the sole proprietorship and keep finances separate going forward.
Do I need a new EIN when converting to an LLC?
Yes, in most cases. The LLC is a new legal entity, so it needs its own EIN from the IRS — your sole proprietorship's EIN or your SSN doesn't carry over. Getting the new EIN is free and takes a few minutes on the IRS website, and you'll use it for the LLC's bank account and taxes.
What happens to my trademark when I form an LLC?
If you registered a trademark personally, it stays in your name until you formally assign it to the LLC — which you should do so the entity that uses the brand also owns it. If you never trademarked your name, forming the LLC is a good time to file one in the LLC's name. Forming the LLC itself does not protect or transfer your brand rights.
Will I lose liability protection if I mix personal and business money?
You risk it. Commingling personal and business funds is the classic way owners lose LLC protection — courts can 'pierce the corporate veil' and hold you personally liable when the separation isn't respected. After transferring your business to an LLC, run all business activity through the LLC's account and keep personal finances entirely separate to preserve the shield.