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Online Services will be down for improvements from 5 p.m. on December 4 until 10 a.m. on December 8.

During this timeframe, you will be unable to create, log in to, or complete any transactions in your Online Services account.
   
If you must file during this timeframe, you may file a paper form. If you must pay a bill, use our Quick Pay application, which does not require you to log in. If you received an income request letter (Form RP-5300-WSC), use our STAR Income Worksheet tool.
   
To learn about the upcoming improvements and stay up to date, see December 2025 changes to Online Services and subscribe to receive Online Services emails.

Corporation tax resource center

Did you receive Form CT-198, Corporation Tax Account Information?

If you receive Form CT-198, please contact us with your federal employer identification number (EIN) so that we can update your account.

We generate Form CT-198 when a newly formed corporation is added to our records, when a foreign corporation becomes authorized in New York State, and when an identification number or corporate name has recently changed.

Please review Form CT-198. If it doesn’t show your EIN, please enter it. If you find that other changes or corrections are needed, please enter those as well. When you’re done, please contact 518-485-2639 so that we can update your records.

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Maintain your business information

One of your tax responsibilities is to provide your business information and keep it up to date.

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Find other resources

Take a look at the resources and tools we offer to help you do business with New York and with the Tax Department. 

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