Frequently Asked Questions
Below you will find information that might help you understand how to find things or learn about information you might need to know about your city or town.
Company Taxes
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The Quarterly Tax Application is available after May 15th of each new calendar year.Company Taxes
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You can log into the Company Tax Application one of two methods. (A) Click on Online Services from our home page; scroll down to Registered Company Users; choose File/Amend Tax Return or File Quarterly Taxes. You will need your user id and password to log into the applications. (B) Click on SCDOI Connect Login from our home page and enter your user id and password.Company Taxes