Starting as a sole proprietor is perfectly fine — it's fast, free, and flexible. But at some point, your business outgrows it. This guide walks you through every step of converting your sole proprietorship into an LLC, whether you're based in the U.S. or operating from abroad.
IN THIS GUIDE:
- Why convert? Sole proprietorship vs LLC
- Step-by-step conversion process
- What changes with your taxes
- Converting as a non-U.S. resident
- Frequently asked questions
Why Convert? Sole Proprietorship vs. LLC
As a sole proprietor, you and your business are legally the same person. That means if someone sues your business, your personal savings, car, and home are all on the table. An LLC changes that by creating a legal wall between you and your business.
Here's a quick comparison to help you see the difference:
Feature Sole Proprietorship:-
Personal liability - Full personal exposure
Taxes - Pass-through (Schedule C)
Credibility - No formal entity
Bank account - Personal account (or DBA)
Cost to start - $0
Ongoing requirements - Very minimal
Feature LLC:-
Personal liability - Protected — business debts stay separate
Taxes - Pass-through by default, with S-Corp option
Credibility - Recognized legal business entity
Bank account - Dedicated business account in LLC's name
Cost to start - $50–$500 state fee + optional service fee
Ongoing requirements - Very minimal Annual report + registered agent
Most sole proprietors convert when they start earning more money, signing bigger contracts, or working with clients who prefer doing business with a legal entity. It's a signal that your business is real — and it gives you the protection to match.
💡 GOOD TO KNOW
You don't actually "convert" in the traditional sense — there's no paperwork that transfers one structure to the other. You simply form a new LLC and then move your business activity into it. It's simpler than it sounds.
Step-by-Step: How to Convert a Sole Proprietorship to an LLC
The process is the same whether you've been a sole proprietor for one month or ten years.
Follow these steps in order:
- Choose a name for your LLC
Your LLC name must be unique in the state you're filing in. It must include "LLC," "L.L.C.," or "Limited Liability Company." If you've been operating under a DBA (Doing Business As) name, you can keep using it — but the legal entity name must meet your state's requirements. Run a quick name search on your Secretary of State's website before committing. - Choose your formation state
If you live and work in the U.S., form your LLC in the state where you operate. Forming in a "popular" state like Delaware or Wyoming while actually doing business elsewhere just creates extra paperwork and fees. Not sure which state is right for you? See our guide to the best states for LLC formation. - Appoint a registered agent
Every LLC must have a registered agent — a person or company with a physical address in your formation state to receive legal documents on your behalf. If you're outside the U.S. or don't have a local address, a registered agent service like Brendat handles this for you in all 50 states. - File your Articles of Organization
This is the official document that creates your LLC. You file it with your state's Secretary of State office and pay the state filing fee (typically $50–$300). Brendat files this on your behalf — correctly, quickly, and with a 100% accuracy guarantee. Once approved, your LLC legally exists. - Create an operating agreement
Even as a single-member LLC, you should have an operating agreement. It outlines how the business is owned and managed, and many banks require it to open a business bank account. Brendat provides a customizable template as part of the Standard and Premium plans. - Get a new EIN for your LLC
Important: your sole proprietorship's EIN (if you had one) does not transfer to the LLC. Your LLC is a new legal entity and needs its own EIN from the IRS. This is free and can be done online at IRS.gov — or Brendat can handle it for you as part of your formation package. - Open a business bank account
Once you have your LLC formation documents and EIN, open a dedicated business bank account in your LLC's name. This is critical — mixing personal and business funds can pierce the "corporate veil" and eliminate the liability protection your LLC provides. - Transfer assets, update contracts and licenses
Move any business assets (equipment, intellectual property, domain names) into the LLC's name. Update existing client contracts to reflect the new LLC entity. Check with your local licensing authority whether your business licenses need to be reissued in the LLC's name — some require a new application, others allow a simple name change.
⚠️ Don't skip this
Keep using your sole proprietor bank account after forming the LLC is one of the most common mistakes. Once the LLC exists, all new business income should flow through the LLC's account — not your personal account. Courts have ruled against business owners who mixed finances, stripping them of liability protection.
Ready to Make the Switch?
Brendat handles your entire LLC formation — Articles of Organization, EIN, registered agent, and operating agreement — starting at $0 + state fee.
What Changes With Your Taxes?
Good news: for most single-member LLCs, the tax treatment is exactly the same as a sole proprietorship. The IRS treats a single-member LLC as a "disregarded entity" by default, meaning you still report business income on Schedule C of your personal tax return. Nothing dramatic changes on day one.
What does change — and what many business owners eventually take advantage of — is the ability to elect S-Corporation tax status once your LLC is profitable enough. An S-Corp election can significantly reduce your self-employment tax bill by allowing you to split income between salary and distributions. This isn't relevant for everyone, but worth knowing as your revenue grows.
📌 Tax tip
Since your sole proprietorship's EIN doesn't transfer, you'll need to notify the IRS of the change, update your bank accounts, and inform any clients who have your old EIN on file for 1099 reporting purposes. Make sure your new LLC EIN is on all invoices going forward.
How to Change from Sole Proprietorship to LLC in Maryland (and Other States)
The process of converting a sole proprietorship to an LLC is largely the same across all 50 states — but a few states have unique requirements worth knowing before you file.
Maryland is one of them. Here's what's different:
- Maryland files through SDAT (State Department of Assessments and Taxation) — not the Secretary of State like most states
- The registered agent is called a "Resident Agent" in Maryland
- Standard processing takes 4-6 weeks — expedited filing ($425) is recommended if you need it faster
- Annual report is due April 15th every year — $300 fee — called a "Personal Property Return"
Other states with unique requirements:
- Arizona — requires a newspaper publication notice within 60 days of formation (Maricopa and Pima County residents are exempt)
- New York — requires publication in two newspapers for 6 weeks
- California — $800 minimum annual franchise tax regardless of income
For all other states, the standard 8-step process covered in this guide applies directly. Check your state's Secretary of State website for current filing fees and processing times.
Converting as a Non-U.S. Resident
If you're operating a sole proprietorship outside the United States and want to convert it into a U.S. LLC, the process is straightforward — and you don't need to travel to America to do it.
Here's what non-residents need to know:
- You can form an LLC in any U.S. state without being a U.S. citizen, resident, or visa holder.
- You need a registered agent with a physical U.S. address in your chosen state — Brendat provides this in all 50 states.
- Getting an EIN as a non-resident requires filing IRS Form SS-4 by fax or mail (the online application requires a U.S. Social Security Number). Brendat can guide you through this process.
- Opening a U.S. bank account is possible but requires more steps for non-residents — options include Mercury, Relay, or Wise Business, which accept foreign-owned LLCs.
- Your home country tax obligations don't disappear — consult a tax professional familiar with U.S. and your home country's tax treaty to understand your full obligations.
For a full guide on running a U.S. LLC from abroad, read our article on starting a U.S. LLC without living in America.
Frequently Asked Questions
Do I dissolve my sole proprietorship when I form an LLC?
Not formally — a sole proprietorship doesn't require legal dissolution because it was never a separate legal entity. You simply stop operating under that structure and move your business activity into the LLC. Cancel any DBA registrations that are no longer needed and close any sole proprietor accounts.
Can I keep my existing business name?
Yes, as long as the name is available in your state and meets naming requirements (must include LLC or equivalent). If the name is taken, you can file a DBA (Doing Business As) under your LLC to continue using your existing brand name.
How much does it cost to convert?
The main cost is the state filing fee for your Articles of Organization, which ranges from $50 (Colorado, New Mexico) to $500+ (Massachusetts). Brendat's formation service starts at $0 + the state fee, with plans that include EIN, operating agreement, and registered agent.
How long does the conversion take?
Forming the LLC itself takes 1–7 business days depending on the state. Updating contracts, licenses, and bank accounts takes a few more weeks. Plan for 2–4 weeks total to fully transition from sole proprietorship to LLC.
Do I need a lawyer to convert a sole proprietorship to an LLC?
No. The formation process is a document filing that does not require an attorney. A service like Brendat handles all the paperwork. If your business has complex ownership arrangements, existing debt, or pending contracts, consulting an attorney before the switch is advisable.
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Conclusion
Converting a sole proprietorship to an LLC is one of the smartest moves you can make as a growing business owner. It takes a weekend of paperwork — but the liability protection, tax flexibility, and professional credibility it gives you lasts for the lifetime of your business.
The process is simpler than most people think. Choose your state, file your Articles of Organization, get your EIN, open a dedicated business account, and move your contracts and licenses over. That's it. You don't need a lawyer, you don't need months of preparation, and you don't need to shut down your business while you do it.
The only thing left to do is start.
About the Author
Brendat Editorial publishes practical guidance for founders navigating business formation, compliance, and growth in the U.S.