Quick answer: If you sell taxable goods or services in New York, you must register with the Tax Department for a Certificate of Authority at least 20 days before you start making sales. Most small businesses then file sales tax returns quarterly, on New York's March-through-February calendar, and must file even in quarters with no sales. The most common mistakes are charging the wrong local rate, not keeping exemption certificates, and treating sales tax collected as the business's own money.
Sales tax is a trust tax. When you collect it, you are holding the state's money, and New York treats unpaid sales tax seriously, including holding owners and responsible officers personally liable. The good news is that the system is manageable once you understand a handful of rules.
Do you need to register?
You need a Certificate of Authority if you will:
- Sell tangible goods at retail in New York, from a storefront, a craft fair table, or a website shipping to New York customers.
- Provide taxable services, such as certain repair and maintenance services, cleaning and maintenance of real property, parking, storage, or hotel occupancy.
- Operate a restaurant, bar, food truck, or caterer.
- Sell at flea markets, shows, or other temporary venues, even occasionally.
Registration is free and is done online through New York Business Express or the Tax Department's Online Services. Apply at least 20 days before your first sale. Making taxable sales without a Certificate of Authority can bring penalties, and you are still responsible for the tax you should have collected.
Not everything is taxable. Most food sold for home consumption, prescription medicine, and many professional services, like accounting and legal work, are not. Whether a particular service is taxable can be surprisingly nuanced, and it is worth checking the Tax Department's guidance before you assume.
Getting the rate right
New York's sales tax is a combination of the 4% state rate plus local rates set by counties and some cities. Many counties in Central New York combine to a total of 8%, but rates differ around the state and occasionally change, and a few jurisdictions have their own rates.
The rate that applies is generally based on where the customer takes delivery, not where your business is located. A Syracuse business shipping to a customer in Oneida County or downstate should charge the rate for the delivery location. The Tax Department publishes the current rates in Publication 718, and it has an online lookup by address.
Clothing and footwear under a set price per item are exempt from the state portion, and some localities also exempt them while others do not. If you sell clothing, check how your customers' localities treat it.
Filing frequency and due dates
New York assigns a filing frequency based on your taxable sales:
- Quarterly filing is the most common for small businesses. New York's sales tax quarters run March through May, June through August, September through November, and December through February. Returns are due on the 20th of the month after each quarter ends.
- Annual filing is available for very small vendors, covering March 1 through the end of February, with the return due March 20.
- Part-quarterly (monthly) filing applies to larger vendors, who file monthly returns in addition to the quarterly return.
Notice that the sales tax quarters do not line up with calendar quarters. This trips up new business owners every year. Mark the dates on your calendar.
You must file a return for every period, even if you had no sales. Missing a zero return can trigger penalties and a bill estimating what the state thinks you owed. Returns are filed and paid through Online Services.
Exempt sales and the paperwork that proves them
When you make a sale without collecting tax, you need documentation that explains why. The most common forms:
- Resale certificate (Form ST-120) from a customer who is buying to resell the item. You can also use your own ST-120 when buying inventory you will resell.
- Exempt organization certificate (Form ST-119.1) from a qualifying nonprofit.
- Contractor exempt purchase certificate (Form ST-120.1) for certain contractor purchases.
The certificate must be properly completed and received in a timely manner. If an auditor finds an untaxed sale without a valid certificate, the tax becomes your liability. Keep these on file by customer so you can find them years later.
Common mistakes we see
Over the years we have helped a fair number of small businesses clean up sales tax problems. The same patterns come up:
- Using the collected tax as operating cash. Set it aside in a separate account if you need the discipline.
- Charging tax only at your shop's local rate when shipping elsewhere.
- Forgetting use tax. If you buy equipment or supplies from an out-of-state seller who does not charge New York tax, you generally owe use tax yourself.
- Not filing zero returns in slow quarters.
- Missing the transition to monthly filing after sales grow.
- No documentation for exempt sales.
Clean bookkeeping goes a long way here. If your sales tax figures come straight from reconciled books each quarter, filing becomes routine. Our bookkeeping and payroll services include sales tax return preparation for clients who want it off their plate. And if you are starting to sell into other states, see our article on multi-state obligations for New York businesses.
Frequently asked questions
When are New York quarterly sales tax returns due?
Quarterly returns are due March 20, June 20, September 20, and December 20, covering the quarters ending in February, May, August, and November. If a due date falls on a weekend or holiday, it moves to the next business day.
Do I have to file a sales tax return if I had no sales?
Yes. Once you hold a Certificate of Authority, you must file a return for every period assigned to you, even if you had no sales and owe nothing. If you have stopped doing business, you should file a final return and surrender your certificate.
Do I charge sales tax on services in New York?
Only some. New York taxes a defined list of services, including certain repair, maintenance, installation, cleaning, protective, and information services. Many professional and personal services are not taxable. Check the Tax Department's guidance for your specific service before deciding.
Can I be personally responsible for my business's unpaid sales tax?
Yes. Owners, officers, and employees responsible for collecting and paying sales tax can be held personally liable for unpaid amounts, even if the business is an LLC or corporation. This is one of the main reasons to keep sales tax current.
This article is general information for 2026, not tax or legal advice for your situation. Tax rules and figures change; confirm current amounts with the IRS, New York State, or your accountant before acting.
Related service: New York State Tax