NYNew York · Certificate of Authority · NYS Tax Dept.
Get your New York Certificate of Authority filed — fast.
New York requires businesses to register for a Certificate of Authority at least 20 days before making their first taxable sale. EfilePermit.com files your application with the NYS Department of Taxation and Finance — and keeps your permit, your ST-120 resale certificates, and all your documents organized in one dashboard.
Also called a New York sales tax permit, sales tax license, NY sales tax registration, or vendor registration — it's the same NYS Certificate of Authority.
Don't wait — NY requires registration 20 days before your first sale
Flat $99 fee — no surprisesFiled with the NYS Tax DepartmentPrint ST-120 resale certificates from your dashboard
HEADS UPEfilePermit.com is a private software platform — not a government website — and is not affiliated with the NYS Department of Taxation and Finance or the State of New York. You may register directly at tax.ny.gov at no cost. We charge a $99 service fee to handle the process on your behalf.
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20days
New York's 20-day pre-registration rule is the strictest in the country.
Apply for your Certificate of Authority at least 20 days before your first taxable New York sale. If you've already started selling, you're operating in violation of NYS tax law — register today and stop the clock.
NYS requires businesses to register 20 days before their first taxable sale. Miss that window and you're already in violation. NYS is also known for some of the most thorough sales-tax audits in the country.
20-day rule
You must register 20 days before your first sale
New York law requires businesses to apply at least 20 days before making any taxable sales. If you've already started selling without one, you're in violation of NY sales-tax law. Every day you wait increases your exposure.
10% + daily
Late penalties and compounding interest
NYS imposes a substantial-understatement penalty of up to 10% of the underpayment, with interest accruing daily. The Department regularly cross-references marketplace data from Amazon, Etsy, and Shopify to find unregistered sellers.
Retroactive
NYS audits are thorough — and look back
New York auditors can look back at prior years of transactions and assess back taxes, penalties, and interest on every sale made without a valid Certificate of Authority. The longer you wait, the bigger the exposure.
Don't let a $99 filing become a $10,000 problem.Filed with the NYS Tax Dept. within 24–48 hours. Dashboard access included.
If any of the following applies to your business, you need to register — at least 20 days before your first New York sale.
Your business needs one if Yes
Any of these apply — register before your first sale.
✓You sell taxable physical goods anywhere in New York State
✓You sell taxable services (NY taxes a broader range than most states)
✓You operate any type of retail business in NYC or anywhere else in NY
✓You sell online and ship products to New York customers
✓You sell at trade shows, markets, pop-ups, or events in New York
✓You are an out-of-state seller exceeding $500K AND 100 NY transactions
✓You operate on Etsy, Amazon, Shopify, or any marketplace requiring vendor registration
✓You are a wholesale distributor selling to NY buyers
You may not need one if Maybe not
Edge cases — when in doubt, register or ask a tax pro.
iYou provide only non-taxable services in New York
iYou're below New York's remote-seller dual threshold (<$500K and <100 transactions)
iYou deal exclusively in exempt goods or services
iYou have no nexus in New York and are below the economic threshold
?
Important for NY service businesses: New York taxes a much broader range of services than most states — including certain personal services, information services, and installation/repair services. If you provide any kind of service in New York, you may still need a Certificate of Authority even without selling physical products. When in doubt, register.
New York facts
Everything you need to know about the NY Certificate of Authority.
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Official Name
The official document is called a Certificate of Authority, issued by the NYS Department of Taxation and Finance. Also called a New York sales tax permit or sales tax license — same registration.
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Issued By
The New York State Department of Taxation and Finance. Applications are filed through the NYS Business Express portal at tax.ny.gov.
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State Registration Fee
Free. NYS does not charge a registration fee. EfilePermit.com charges a $99 service fee to prepare and submit your application — and store your permit permanently in your dashboard.
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Register 20 Days Before Your First Sale
NY has a legally required 20-day advance registration window. You must apply at least 20 days before making any taxable sale in New York.
20 daysadvance — strictest in US
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No Expiration
The Certificate of Authority does not expire, but you must keep it current — update if your business name, address, ownership, or other key info changes.
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Multiple Locations
If your business has more than one New York sales location, each may need its own Certificate of Authority. EfilePermit.com tracks all of your locations in one dashboard.
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New York Sales Tax Rates
The state base rate is 4%. Local taxes bring it higher — NYC's combined rate is 8.875%. Your Certificate of Authority covers collection at the applicable combined rate for every location.
8.875%NYC combined — one of the highest
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Out-of-State & Online Sellers
Remote sellers must register with more than $500,000 in NY sales AND more than 100 transactions in the prior four sales-tax quarters. Applies to Shopify, Amazon, Etsy, and any marketplace shipping to NY.
$500KAND 100+ transactions
Got the gist? Skip the paperwork — we'll handle the rest.
Independent service. EfilePermit is not affiliated with the NYS Department of Taxation and Finance. You may register directly at tax.ny.gov. Our $99 fee covers preparing, submitting, and storing your application — handled for you.
What's included
Filed with the NYS Tax Department in 24–48 hours
We prepare your Certificate of Authority application correctly the first time and submit it on your behalf — within the 20-day pre-registration window.
Certificate stored permanently in your dashboard
Download your Certificate of Authority anytime — for your bank, your accountant, or your wholesale supplier.
Print unlimited NY ST-120 resale certificates
Pre-filled with your Certificate of Authority number — ready to email or print for every supplier, at no extra cost.
Real-time NYS filing status tracking
Watch your application progress in your dashboard. Email alerts at every step.
Real-human email support
A real person at EfilePermit responds to every email within one business day.
30-day money-back guarantee
If we haven't filed your application within 30 days, you get a full refund — no questions.
256-bit SSL encryption
30-day money-back guarantee
24–48 hour filing
Real-human email support
The process
Filed with the NYS Tax Dept. in 3 steps.
Skip the NYS Business Express portal. Tell us about your business — we do the rest.
Step 01
Tell us about your business
Answer a few questions — business name, address, type of products, owner info. No NY tax expertise required. Takes less than 5 minutes.
Step 02
We file with the NYS Tax Dept.
EfilePermit.com prepares your Certificate of Authority application, verifies every field, and submits it to the NYS Department of Taxation and Finance — correctly, the first time, within the 20-day window.
Step 03
Certificate lives in your dashboard
Once issued, your Certificate of Authority is stored permanently in your dashboard. Download it, track it alongside other permits, and generate ST-120 resale certificates for your suppliers any time.
Questions along the way? A real person at EfilePermit responds by email — no bots, no hold music.
Print unlimited New York ST-120 Resale Certificates from your dashboard.
One of the most valuable advantages of holding a Certificate of Authority — and most NY business owners search for the ST-120 form by name.
What is the NY ST-120? Pro tip
When New York businesses buy products to resell to their customers, they shouldn't pay sales tax on those purchases — they'll collect tax from their own customers instead. The New York Resale Certificate (Form ST-120) is the document you give to your suppliers to make that happen.
To issue a valid ST-120, your business must have an active Certificate of Authority and a valid Certificate of Authority number. EfilePermit.com connects those two things automatically. Once your Certificate of Authority is in your dashboard, you can generate a properly formatted ST-120 for any supplier — in seconds, as many times as you need.
Without EfilePermit.com
×Download Form ST-120 from the NYS website manually
×Fill in your Certificate of Authority number, business name, address, and product description every time
×Print, scan, and email as an attachment for each new supplier
×No record of which suppliers have received your certificate
×Risk of using an outdated version of the form
With EfilePermit.com
✓Print unlimited NY ST-120 Resale Certificates from your dashboard
✓Pre-filled with your Certificate of Authority number and business details
✓Always uses the current NYS-compliant form format
✓PDF ready to send directly to suppliers
✓Every certificate logged in your document vault for audit trail
EfilePermit Exclusive
One Certificate of Authority. Unlimited ST-120 Resale Certificates.
Once your New York Certificate of Authority is active in EfilePermit, you can generate and print as many Form ST-120 resale certificates as you need — for every supplier, every purchase category. Included with every EfilePermit account at no extra charge.
1-CLICK
Email it directly to your supplier
Pre-filled with your Certificate of Authority number, business info, today's date, and your supplier's name. Delivered as PDF or sent straight from your dashboard.
ST-120 resale certificate printing is included with every EfilePermit account — no extra charge.
!Important: The NY ST-120 is not the same as your Certificate of Authority. The Certificate of Authority is issued by NYS and authorizes you to collect sales tax. The ST-120 is the form you give to your suppliers so you can purchase inventory for resale without paying tax at checkout. EfilePermit.com helps you with both.
The EfilePermit platform
Every permit, every renewal — in one tidy place.
Once your first permit is filed, EfilePermit becomes your home base. Track expiration dates, store documents, add new permits as your business grows.
Manage Every Permit Type
Sales tax permits, DBAs, operating licenses, professional licenses, food handling certifications, resale certificates — track them side by side with the right renewal cadence for each. One login. Every permit your New York business holds.
Auto-Renew, Set and Forget
Toggle auto-renew on any permit and EfilePermit files 30 days before it expires. You get a heads-up email 7 days out — no surprises, no late fees, no missed deadlines.
One Vault for Every Document
Permits, certificates, confirmation receipts, NYS correspondence — all stored, dated, and downloadable in seconds. Your accountant or bank gets exactly what they need with one click.
Calendar-Aware Reminders
Email and SMS nudges before every state deadline. Push any permit deadline to Google Calendar or Apple Calendar in one click. Never miss a New York filing deadline again.
Your NY Certificate of Authority is just the beginning.
EfilePermit grows with your business — new states, new permit types, one dashboard.
From the corner shop to the cross-state online seller, we've got their back.
“I was about to open my boutique in Brooklyn and had no idea I needed to register 20 days in advance. EfilePermit filed everything within 24 hours and now I track my DBA and my Certificate of Authority in the same place.”
RA
R. Alvarez
Boutique Owner · Brooklyn, NY
“I sell on Etsy and needed a NY Certificate of Authority for my suppliers. EfilePermit got it done and the ST-120 generator saves me so much time every time I add a new wholesale vendor.”
CM
C. Martinez
Handmade Goods Seller · Queens, NY
“My e-commerce store crossed New York's threshold and my accountant said I needed a Certificate of Authority ASAP. EfilePermit filed it, sent me the confirmation, and stored everything in my dashboard. Easiest compliance thing I've done all year.”
TJ
T. Jackson
E-commerce Seller · Austin, TX (selling into NY)
New York questions
Frequently asked questions about the NY Certificate of Authority.
A Certificate of Authority is issued by the New York State Department of Taxation and Finance and authorizes your business to collect New York sales tax from customers on taxable sales. Without it, you are not legally permitted to make taxable sales in New York.
"Certificate of Authority," "New York sales tax permit," "NY sales tax license," and "NYS vendor registration" all refer to the same registration. EfilePermit.com files the official Certificate of Authority regardless of what term brought you here.
New York law requires you to apply for your Certificate of Authority at least 20 days before you make your first taxable sale in New York. This is one of the few states with an explicit advance registration deadline. If you've already started selling, register as soon as possible.
NYS does not charge a registration fee. EfilePermit.com charges a flat $99 service fee to prepare your application, submit it to NYS, and store everything in your dashboard — including unlimited ST-120 resale certificate printing.
Form ST-120 is the New York State Resale Certificate. It's a document you give to your suppliers so you can purchase qualifying goods for resale without paying sales tax at checkout. You need an active Certificate of Authority and valid Certificate of Authority number to issue one. EfilePermit.com prints it for you directly from your dashboard.
Yes. Once your NY Certificate of Authority is active in your EfilePermit account, you can print unlimited Form ST-120 resale certificates from your dashboard. They are pre-filled with your permit details and formatted for NYS compliance.
Not in the traditional sense, but you must keep your registration current and update it if your business name, address, structure, or ownership changes. EfilePermit.com stores your certificate and sends reminders if action is ever needed.
If your New York sales exceed $500,000 AND you have more than 100 transactions with New York customers in the previous four sales-tax quarters, you are required to register. If you are approaching those thresholds, register before you cross them.
Yes. New York taxes a broader range of services — including certain personal services, information services, installation and repair services, and more — compared to most other states. If you provide any kind of service in New York, consult a tax professional or register preemptively.
Each physical sales location in New York may need its own registration or certificate. If you operate multiple NYC storefronts or event venues, EfilePermit.com can help track all of them in one place.
NYS can assess back taxes on all prior taxable sales, plus penalties including a substantial-understatement penalty of up to 10% of the underpayment. Interest accrues daily. NYS is known for cross-referencing marketplace data from Amazon, Etsy, and Shopify to identify unregistered sellers.
No. EfilePermit.com is a private software platform — not a government website — and is not affiliated with the NYS Department of Taxation and Finance or the State of New York. We prepare and submit your application on your behalf. The Certificate of Authority is issued by NYS, not by EfilePermit.com.
Register your NY Certificate of Authority before your first sale.
New York requires registration 20 days in advance. EfilePermit files it fast, stores your certificate, and generates unlimited ST-120 resale certificates — all in one place.
EfilePermit.com is a private software platform — not a government website — and is not affiliated with the NYS Department of Taxation and Finance or the State of New York. You may register directly at tax.ny.gov at no cost. EfilePermit charges a $99 service fee for preparing and submitting your application on your behalf.
NY Certificate of AuthorityFiled with NYS Tax · ST-120 generator included