Sole Proprietorship in New Jersey: How to Start One

A New Jersey sole proprietorship is the simplest, cheapest way to legally start a business in the state. There's no state filing to create one, no formation document, and no annual report to keep up with. But "simple" doesn't mean "nothing to do." If you plan to operate under any name other than your own legal name, or you'll owe sales tax, you still have real registration steps to complete before you take your first paying customer. Here's exactly how to start a sole proprietorship in New Jersey, in order, with the actual costs and where to file.

What Is a Sole Proprietorship in New Jersey?

A sole proprietorship is an unincorporated business owned and run by one person, where there's no legal separation between the owner and the business. You and the business are the same legal entity: you keep all the profit, but you're also personally liable for all business debts and legal claims. There's no Certificate of Formation to file with the New Jersey Division of Revenue and Enterprise Services (DORES) the way an LLC or corporation would file, and no $75 annual report requirement. If you're operating under your own first and last name with no additional words, New Jersey generally requires no state-level registration at all to begin.

That changes the moment you add a trade name (a "doing business as" name) or start collecting sales tax, hiring employees, or need an industry-specific license. Those pieces are where most new NJ sole proprietors trip up.

What You'll Need Before You Start

A business name decision: your own legal name, or a trade name (DBA)
Your Social Security number, or an Employer Identification Number (EIN) from the IRS if you plan to hire or want to keep your SSN off business paperwork
A trade name search and registration with your county clerk, if using a name other than your own
Access to the NJ Business Registration portal to file Form NJ-REG
A list of any industry-specific licenses your business type may require (contracting, cosmetology, food service, and similar regulated fields)
A business bank account (recommended, not legally required for sole proprietorships)
General liability insurance or other coverage appropriate to your business activity

How to Start a Sole Proprietorship in New Jersey: Step-by-Step

Step 1: Decide on your business name

If you're comfortable operating under your own full legal name (for example, "Maria Alvarez" with no additional words), you can generally skip trade name registration entirely. Most sole proprietors, though, want a business name like "Alvarez Landscaping" or "Garden State Pet Sitting." Any name other than your own legal name is a trade name, sometimes called a fictitious name or DBA, and it needs to be registered before you use it publicly, on invoices, or on a bank account application.

Step 2: Register your trade name with the county clerk

For a New Jersey sole proprietorship, trade name registration is filed at the county level, not with the state. You'll file with the clerk's office in the county where your business is located. Fees are set individually by each county clerk, so confirm the current fee on your county's website before you file; there's no single statewide trade name fee for sole proprietors the way there is for LLCs and corporations (which file an alternate name with DORES for a $50 state fee). Check name availability locally first; a quick search on the NJ Business Name Search is also worth doing so you're not stepping on a registered LLC or corporation name, even though your county filing is separate.

Step 3: Register with the state for tax purposes (Form NJ-REG)

This is the step almost every sole proprietor in New Jersey does need to complete. Any business with employees, that sells taxable goods or services, or that owes any New Jersey state tax must register with the Division of Revenue and Enterprise Services by filing Form NJ-REG, available through the NJ Business Registration portal. This filing gets you a New Jersey tax identification number and, if applicable, a Certificate of Authority to collect sales tax. New Jersey's state sales tax rate is 6.625%, and if you sell taxable goods or services, you must collect and remit it.

Step 4: Get an EIN from the IRS, if you need one

A sole proprietor with no employees can typically use their Social Security number for federal tax purposes. But if you plan to hire anyone, want to open a business bank account under the business name, or simply prefer to keep your SSN off business documents, apply for a free EIN directly through the IRS website. There's no cost and it usually takes a few minutes online.

Step 5: Check for required professional or local licenses

New Jersey doesn't issue a general statewide business license. What you will need depends on what you do. Contractors and subcontractors doing business with the state or other public agencies, and unincorporated construction contractors working in New Jersey, need a Business Registration Certificate. Many trades and professions (cosmetology, health care, real estate, food service, and others) need a license from the Division of Consumer Affairs or another state agency. On top of that, your city or township may require a local business license, zoning approval, or health permit, especially if you're running the business from a home or storefront. Check with your municipal clerk's office directly; local requirements vary by town.

Step 6: Open a business bank account

New Jersey doesn't legally require a separate bank account for sole proprietors, but you should open one anyway. Mixing personal and business funds makes bookkeeping harder and weakens the argument that your business finances are distinct if you're ever audited or sued. Most banks will ask for your trade name registration certificate (if applicable) and your EIN or SSN to open the account.

Step 7: Set up your recordkeeping and tax habits

As a sole proprietor, your business income and losses pass through to your personal tax return; there's no separate business-level income tax return the way a corporation files. New Jersey taxes that income under the state's graduated Gross Income Tax, which runs roughly 1.4% at the low end up to 10.75% on income above $1 million. You'll also owe federal self-employment tax on your net earnings. Set aside money for quarterly estimated tax payments so April doesn't surprise you, and keep clean records of income and deductible expenses from day one.

Step 8: Get insured

Because a sole proprietorship offers no liability shield, a lawsuit or claim against the business is a claim against you personally, including your personal assets. General liability insurance, and professional liability coverage if you're in a service field, is one of the few tools available to a sole proprietor to manage that risk. It's not a state filing requirement in most cases, but it's a practical one.

Tips and Common Mistakes to Avoid

Don't skip the county trade name filing. Operating under an unregistered trade name can create problems opening a bank account, signing contracts, or defending your name if someone else registers it first.
Don't assume no state license means no license at all. Municipal and industry-specific licensing requirements catch a lot of new sole proprietors off guard; check both your town and your profession's licensing board.
Don't forget NJ-REG if you'll collect sales tax. Collecting sales tax without a Certificate of Authority is a compliance problem you don't want to discover during an audit.
Don't wait until tax season to think about self-employment tax. Quarterly estimated payments (federal and state) are how most sole proprietors avoid penalties.
Don't confuse a sole proprietorship with an LLC. If personal liability protection matters to you, a sole proprietorship isn't the structure that provides it; an LLC, with its $100 Certificate of Formation filing fee and $75 annual report, is the next step up.

What to Expect After You Register

Once your trade name is on file with the county (if applicable) and you've completed NJ-REG, you should generally be able to operate, invoice clients, and open a business bank account under your business name. Processing times can vary by county for trade name filings and by filing method for NJ-REG, so build in a little buffer before you need the paperwork in hand for a bank or vendor. As with any tax or licensing outcome, your specific timeline and requirements may differ based on your business activity, so confirm current processing times directly with your county clerk and with the Division of Revenue when you file.

Sole Proprietorship vs. LLC in New Jersey: A Quick Note

A sole proprietorship is fast and inexpensive to start, but it leaves your personal assets exposed to business debts and lawsuits. An LLC costs more upfront ($100 filing fee for the Certificate of Formation, plus a $75 Annual Report every year) and requires a registered agent with a New Jersey address, but it separates your personal liability from the business in most circumstances. Many New Jersey sole proprietors start this way to test a business idea with minimal cost, then convert to an LLC once revenue or risk grows.

Legal and Tax Disclaimer

This article is for general informational purposes only and does not constitute legal or tax advice. New Jersey filing fees, processing times, and requirements can change, and county-level trade name fees vary by jurisdiction. Before you register your business, consult a licensed New Jersey attorney and a CPA to confirm current requirements and to discuss what structure and tax elections make sense for your specific situation.