To get a resale license in New York, you apply for a Certificate of Authority through the New York Business Express portal at least 20 days before you start making taxable sales. The application is free, and once the Department of Taxation and Finance issues the certificate, you can both collect sales tax from your customers and issue Form ST-120 to your suppliers to buy inventory tax-free.
What New York Actually Calls a Resale License
New York doesn’t issue anything named a “resale license.” The document that does the job is the Certificate of Authority, which registers you with the Department of Taxation and Finance to collect sales tax. Once you hold a Certificate of Authority, you’re also entitled to issue a separate document — Form ST-120, the Resale Certificate — to vendors when you buy inventory. The ST-120 is what tells a supplier not to charge you sales tax on goods you’ll resell. You can’t issue an ST-120 without first holding a Certificate of Authority, so the Certificate is the license you need to apply for.
Who Needs To Register
If you sell tangible personal property or taxable services in New York, you need a Certificate of Authority regardless of how or where you sell. Brick-and-mortar stores, home-based businesses, online shops, craft fair booths, and food carts all qualify. A single taxable sale in a calendar year triggers the requirement.
Out-of-state sellers without a physical presence in New York must also register if, over the preceding four sales tax quarters, they had more than $500,000 in gross receipts from tangible personal property delivered into the state and made more than 100 such sales. Both thresholds must be met. New York’s sales tax quarters don’t follow the calendar year; they run March through May, June through August, September through November, and December through February.
If you sell only through a marketplace like Amazon or Etsy, the marketplace provider is responsible for collecting and remitting sales tax on the sales it facilitates. You may still need your own Certificate of Authority for any direct sales you make outside the marketplace.
Information To Gather Before You Apply
Having everything ready keeps the online application from stalling midway. You’ll need:
- Your Federal Employer Identification Number or Social Security Number.
- Your legal business name, the physical location where operations occur, and a mailing address if it’s different.
- The specific day you intend to begin making taxable sales.
- A six-digit NAICS code that categorizes your business activity. The instructions for Form DTF-17 walk through how to select the right one.
- Full names, home addresses, and Social Security numbers for every owner, partner, or corporate officer.
Take the responsible person information seriously. Under New York Tax Law, owners, officers, directors, and even certain employees can be held personally liable for sales tax the business collects or fails to collect. That liability pierces the corporate veil: organizing as a corporation or LLC does not protect you, and delegating tax duties to an employee or accountant does not protect you either. If the business falls behind on sales tax, the Tax Department can pursue your personal assets to satisfy the debt.
How To Submit the Application Online
Registration runs through the New York Business Express portal. You first need a NY.gov Business account. A personal NY.gov login won’t work; if that’s all you have, you must create a separate business account.
Once logged in, navigate to the Certificate of Authority section and enter the information you gathered. The portal walks you through several screens covering business details and responsible persons. Review the summary screen carefully before submitting. The application goes directly to the Department of Taxation and Finance, and you’ll receive an electronic confirmation with a reference number for tracking.
File at least 20 days before you plan to make your first taxable sale. You cannot legally conduct any taxable transactions until the physical certificate arrives in the mail at the business address you provided. The application itself takes about 20 minutes, and there is no fee.
After the Certificate Arrives
Display the certificate prominently at your place of business once it shows up. Each location needs its own certificate if you operate from more than one site. Businesses without a fixed location, such as food trucks, market vendors, and mobile carts, should attach the certificate to the vehicle or stand they sell from. Failing to display it carries a $50 penalty.
Using the Resale Certificate To Buy Inventory Tax-Free
Holding a Certificate of Authority lets you issue Form ST-120, the Resale Certificate, to your suppliers. When you hand a completed ST-120 to a vendor, you’re certifying that the goods you’re buying will be resold to customers rather than used by your business. The supplier then sells to you without charging sales tax on that transaction.
The resale certificate only covers inventory. You cannot use it to buy office furniture, cleaning supplies, equipment, or anything your business consumes internally. The Tax Department treats misuse seriously. Anyone who issues a false or fraudulent resale certificate with intent to evade tax faces a penalty of 100% of the tax that should have been charged, plus $50 for each fraudulent certificate. Criminal penalties under Article 37 of the Tax Law may also apply.
Accepting Resale Certificates From Your Own Customers
When a buyer hands you an ST-120, verify it before skipping the sales tax charge. The Department of Taxation and Finance offers a Registered Sales Tax Vendor Lookup tool that confirms whether the Certificate of Authority number on the buyer’s ST-120 is valid. Checking takes a minute and protects you if the department later questions why you didn’t collect tax on that sale.
Keep every resale certificate you accept on file for at least three years from the due date of the return on which the last exempt sale using that certificate was reported. If you’re audited and can’t produce the certificate, the Tax Department will treat the sale as taxable and hold you liable for the uncollected tax.
What Happens If You Skip Registration
Operating without a Certificate of Authority carries a penalty of up to $500 for the first day, plus up to $200 for each additional day, capped at $10,000 total. Failing to file the required registration can bring a separate penalty of up to $200, and criminal prosecution under Tax Law Article 37 is possible.
Even setting the penalties aside, operating unregistered means you cannot issue or accept resale certificates, which forces you to pay sales tax on inventory purchases you’d otherwise buy tax-free. That cost cuts straight into your margins. Given that registration is free and the online application is short, the 20-day lead time is the only real planning hurdle.