How to Register a Business Name as a Sole Proprietor in Suffolk County
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This is general information, not legal or tax advice. Business, tax and zoning rules vary and change. Check with the offices named below, and with an attorney or accountant, before you start.
The idea is ready. The product exists, a few friends have said they would pay for it, and now comes the dull but necessary part. What do you call the business, and who needs to know?
For a sole proprietor in Suffolk County, the first stop is the County Clerk. A few other offices come after.
When you need an assumed-name certificate
Operating under your own legal name generally does not trigger this step. If you plan to do business under a name that differs from yours, such as Harbor Candle Co., the Suffolk County Clerk’s Business page describes a form called the Certificate of Conducting Business Under An Assumed Name for an Individual.
If you are unsure whether your name counts, ask the Clerk before you print business cards.
How the County Clerk says to file
According to the Clerk’s sole proprietorship page, filing is by mail. Send the completed form to the Suffolk County Clerk’s Office, 310 Center Drive, Riverhead, NY 11901, ATTN: Business Certificates, and include a self-addressed stamped envelope. The page does not mention online or in-person filing, so confirm with the Clerk if you hoped for another route.
Payment can be by personal check, certified bank check, money order or attorney’s check payable to the Suffolk County Clerk. A returned check carries a $20.00 fee.
The Clerk’s fee page lists $35.00 for the sole proprietor filing, which includes two certified copies, with additional certified copies at $5.00 each. A certificate of discontinuance, used if you close the business, is listed as no fee. The sole proprietorship page does not state publication or renewal requirements, so ask about both.
A pack of business envelopes and a roll of stamps take care of the mailing, and a document scanner lets you keep a digital copy of everything you file.
Get an EIN if you need one
The IRS issues Employer Identification Numbers, and it states plainly that you never have to pay a fee for one. According to the IRS, you generally need an EIN to hire employees, operate a partnership or corporation, or pay sales and excise taxes, among other reasons. The page I read does not say whether a sole proprietor with no employees needs one, so check the IRS’s business structures guidance or ask an accountant.
The free online tool takes one session, since the application expires after 15 minutes of inactivity, and you must be the responsible party with a Social Security number or ITIN. Avoid any website that charges for what the IRS gives away.
Sales tax: a New York step that surprises people
If you expect to make sales in New York that are subject to sales tax, the state Tax Department says you must register for a Certificate of Authority at least 20 days before you begin business. You apply through New York Business Express, and you cannot legally make taxable sales until the certificate arrives. The page does not state a fee.
Which of your products or services are taxable is a separate question. Ask the Tax Department or an accountant before you price anything.
Do not skip zoning and licensing
A business name filing does not grant permission to operate from your address. Your town or village may have rules about home-based businesses, signage, customer visits and deliveries, and some professions carry state licenses. Call your local building or zoning office before you advertise.
Keep personal and business money separate from day one. A dedicated business checking tracker notebook is a low-tech starting point, and an accountant can set you up with better systems.
A simple order of operations
- Choose a name and confirm it is not misleading or already in heavy use
- Check local zoning for home-based businesses
- File the assumed-name certificate with the Suffolk County Clerk, if one applies
- Obtain an EIN if you need one
- Register for a Certificate of Authority if you will make taxable sales
- Open a business bank account and start your records
