09/01/2021
Corporation tax
New York S corporation returns are due September 15, 2021, for calendar-year filers who requested extensions. If you need to file:
access your Account Summary first to determine your balance of estimated tax payments, extension payments, and payments carried forward from a previous tax year; and
visit S corporations–tax years beginning on or after January 1, 2015 for more S corporation information.
Need to make estimated corporation tax payments? Use your Business Online Services account to e-file, Form CT-400, Estimated Tax for Corporations, and pay electronically.
Sales tax
Sales tax returns for monthly and quarterly filers are due September 20, 2021. Use your Business Online Services account to Web File any and all sales tax forms and schedules.
Key online services and features
Access your Account Summary to view detailed filing and payment history. Account Summary for businesses provides filing and payment history for corporation tax, sales tax, and withholding tax.
Sign up for electronic communications within your Online Services account. Once signed up, you'll receive most department notices electronically.
Update your business address or phone number, responsible persons (sales tax only), or other business information, using our Business Tax Account Update (DTF-95) application.
If you only need to update your business address, use our Business Change of Address application.
If you only need to update your sales tax responsible persons, use our Manage Sales Tax Responsible Persons application.
Create a Business Online Services account
If you don’t already have a Business Online Services account, you can create one at any time. You will need:
your taxpayer identification number; and
one of the following:
any corporation, sales, and withholding tax return filed within the last 12 months; or
your five-digit PIN from the Tax Department; or
confirmation that your business has not filed any New York State business tax returns.