To get a North Carolina state tax ID number, register your business with the North Carolina Department of Revenue (NCDOR) using its online Business Registration portal or by mailing Form NC-BR. Registration is free, and most online applicants receive their nine-digit account ID immediately.1North Carolina Department of Revenue. Business Registration The number identifies your business for every state tax obligation you have, and it works alongside your federal EIN rather than replacing it.
Who Has to Register
You need a North Carolina account ID if your business triggers a state tax obligation. The common triggers are selling taxable goods or services, hiring employees in the state, or operating as a corporation or partnership that owes corporate income or franchise tax. You also need one if you owe excise taxes on products like motor fuel or tobacco, or if you owe use tax on out-of-state purchases used in North Carolina.2North Carolina Department of Revenue. Consumer Use Tax
Retailers and wholesale merchants have to hold a Certificate of Registration before making their first sale.3North Carolina General Assembly. North Carolina Code Chapter 105 – Section 105-164.29 Employers must withhold North Carolina income tax from wages regardless of business structure, so even a sole proprietor with one employee has to register.4North Carolina General Assembly. North Carolina Code Chapter 105 – GS 105-163.2
Out-of-state sellers cross into registration territory when gross sales sourced to North Carolina exceed $100,000 in either the current or previous calendar year. That figure includes taxable, exempt, and marketplace sales.5North Carolina General Assembly. North Carolina Code Chapter 105 – GS 105-164.8 If your only North Carolina sales run through a marketplace facilitator that already collects tax on your behalf, you generally do not need a separate account for those sales, though you will need one if you also sell directly.6North Carolina Department of Revenue. Marketplace Facilitators and Marketplace Sellers
What to Have Ready Before You Apply
Pulling this together first will keep the application from stalling:
- Your federal EIN. Sole proprietors without employees can use a Social Security Number.
- Your North Carolina Secretary of State identification number if you’re a corporation. Other entity types may need it depending on filing status.7North Carolina Department of Revenue. Prepare to Register Your Business
- Your legal business name (matching what’s on file with the Secretary of State), plus a physical North Carolina address and a mailing address.
- Social Security Numbers and home addresses for every owner, partner, or corporate officer listed as a responsible party.
- A six-digit NAICS code describing your business activity, available through the search tool at census.gov.8U.S. Census Bureau. North American Industry Classification System
- Your business start date and estimated tax liability. These set your filing frequency.
All of this feeds into Form NC-BR, the state’s Business Registration Application.9North Carolina Department of Revenue. NC-BR Business Registration Application
How to Submit the Application
The fastest route is the NCDOR’s Online Business Registration portal. You enter the same information the paper form asks for, work through verification screens, and submit. Most applicants get their nine-digit account ID on the spot. If the system can’t complete registration in real time, you receive a tracking number and the account ID arrives by mail within ten business days.1North Carolina Department of Revenue. Business Registration
A mailed paper Form NC-BR still works, but expect several weeks while NCDOR keys in your information manually. Either way, there is no fee.
Your Certificate of Registration
Once registration is processed, the state mails a Certificate of Registration showing your permanent account ID. If you sell taxable goods or services, state law requires you to display a copy at each place of business.3North Carolina General Assembly. North Carolina Code Chapter 105 – Section 105-164.29 The certificate is not transferable. If you sell the business, the new owner registers for their own.
Once you have the number, you can start collecting sales tax and filing returns without waiting for the paper certificate.
Finding a Number You Already Have
If you registered before and can’t locate the number, check these first:
- The Certificate of Registration itself, which should be posted at your business.
- Any sales tax coupon booklet the state sent you. The account ID prints on it.10North Carolina Department of Revenue. Sales and Use Online Filing and Payments – Online Help
- Any prior sales and use tax return or withholding report. The number appears in the header.
- Letters from NCDOR, which list the account number near the top.
You can also search the NCDOR’s online Registry of Sales and Use Tax Numbers by business name, with wildcard support if you’re not sure of the exact spelling.11North Carolina Department of Revenue. Registry of Sales and Use Tax Numbers If none of that turns it up, call NCDOR at 1-877-252-3052.12North Carolina Department of Revenue. Contact the NCDOR
Updating or Closing the Account
If your business moves or its mailing address changes, file Form NC-AC to update NCDOR. An online version is available.13North Carolina Department of Revenue. NC-AC Business Address Correction A change in ownership or entity structure typically means registering again, because the certificate is tied to a specific legal entity.
When you close or stop operating in North Carolina, submit Form NC-BN, the Out-of-Business Notification.14NCDOR. NC-BN Out-of-Business Notification File any outstanding returns and pay remaining balances first. Skipping the notification leaves the account open, and the state will keep expecting returns.
What Skipping Registration Costs
Operating without registering carries a penalty of 5% per month on the prescribed license amount, with a minimum of $5 and a cap of 25%. Certain fuel and motor carrier licenses can draw a flat $1,000 penalty after written notice of noncompliance.15North Carolina General Assembly. North Carolina Code Chapter 105 – GS 105-236 Collecting sales tax without a Certificate of Registration is unlawful on its face, and unresolved back tax with interest and penalties costs far more than the free registration would have. Since the online process usually finishes in minutes, there’s little reason to wait.