Quick answer: Starting in summer 2027, New York State will require every holder of a sales tax Certificate of Authority (COA) to re-register and receive a new certificate, in phases over three years. The Tax Department will notify you by certified mail at least 180 days before your current certificate expires. You can only apply after you receive that letter, not before. Even businesses with no tax debt must re-register, and a new certificate will not be approved until all fixed and final tax liabilities, of any tax type, are paid.
Most businesses in New York that sell taxable goods or services need to collect sales tax, and the Certificate of Authority (COA) is the document that allows a business to collect it legally. In the past, a COA generally did not need to be renewed once issued. But the New York State 2026-2027 budget authorized a sales tax re-registration program, and the Department of Taxation and Finance has now published it on its website: starting in summer 2027, certificate holders will be notified in phases over three years to re-register their COAs.
Key Dates at a Glance
| When | What happens |
|---|---|
| Starting summer 2027 | Re-registration begins, in phases over three years |
| At least 180 days before your current COA expires | The Tax Department notifies you of the expiration date by certified mail |
1. What Is the Sales Tax Re-Registration Program, Why Is It Happening, and Who Must Do It?
The program is a new initiative authorized by the New York State 2026-2027 budget. It requires sales tax vendors to apply for a new Certificate of Authority (COA); the old certificate expires and is no longer valid. The Tax Department’s explanation is that the information businesses provided when they first registered, such as how the business operates, who the owners are, and who the responsible persons are, may now be out of date. The re-registration gives the Department a chance to update that information.
The Department has been clear on a few points:
- All current COA holders must re-register, even if you owe no tax at all. The Department will not re-register you automatically.
- Annual filers, meaning businesses that file a sales tax return only once a year, must also re-register. How often you file does not matter.
- To continue operating legally, you must re-register and obtain a new certificate. Without an approved new certificate, your business may not be able to keep collecting sales tax as required.
2. When Is My Turn, and How Will I Be Notified?
The Department says it will notify certificate holders in phases by certified mail, and the letter will state when your current certificate expires.
- Timeline: Starting in summer 2027 and continuing over three years, in phases. The Department has not published a specific window for any individual business.
- How you’ll be notified: Certified mail, sent at least 180 days before your current certificate expires.
- No early re-registration: You cannot apply until you receive the letter.
Don’t miss the certified mail.
That letter sets your timeline. If your business has moved, no one is checking the mail, or the letter gets mistaken for junk mail, you could miss your window. Make sure the business address and contact on file with the Tax Department are current.
3. How Does Unpaid Tax Affect Re-Registration?
Before a new certificate can be approved, all “fixed and final” tax liabilities under your name must be paid in full, for every tax type, not just sales tax. This is the most important rule in the whole program.
“Fixed and final” means you have no remaining right to appeal the Department’s assessment. For example, you received an assessment and did not appeal within the deadline, or your appeal has concluded. Whether the debt is sales tax, withholding tax, or another tax type, it must be paid first.
Separately, New York currently has a limited-time penalty and interest discount program for sales tax debts, called PAID. Eligible businesses receive a notice letter from the Tax Department and must pay the discounted amount on that notice by December 31, 2026. If you have unpaid sales tax, check as soon as possible whether you qualify.
4. Frequently Asked Questions
When does NY sales tax re-registration start?
A: It begins in summer 2027 and runs for three years, in phases. The Tax Department will notify each business by certified mail at least 180 days before its current certificate expires.
I don’t owe any tax. Do I still need to re-register?
A: Yes. All current Certificate of Authority (COA) holders must re-register. The Tax Department will not automatically replace the certificate of a business with no tax debt.
If I owe tax, can I still get a new certificate?
A: Fixed and final tax liabilities, of any tax type, must be paid in full before a new certificate will be approved.
We recommend subscribing to the Tax Department’s sales tax update notifications, or following our future updates, so you hear about new developments right away: tax.ny.gov/help/subscribe.htm
Source: New York State Department of Taxation and Finance, Sales tax re-registration program (page last updated September 15, 2026). This article is general information only and is not legal or tax advice. Rules and dates may change; please rely on the Tax Department’s latest announcements and the letters you receive.