Comptroller of Maryland. Serving the People. Peter Franchot, Comptroller
Maryland Taxes
Maryland Taxes: Find all tax-related information and services. Maryland's Money: Resource for transparent financial reporting. Comptroller of Maryland: Information and resources for government agencies, state employees, vendors, and the general public. Media Services: Outlet for agency and Comptroller news. Online Services: Links to all agency online services and applications. Search Engine: Find it Fast! Translate the website to many languages Home Page

Corporate Estimated Tax Due Dates

Corporate estimated tax quarterly returns must be filed by the 15th day of the month as indicated below for the appropriate quarterly filing period.

Due Date

 1st Quarter
 15th day of 4th Month

 2nd Quarter
 15th day of 6th Month

 3rd Quarter
 15th day of 9th Month

 4th Quarter
 15th day of 12th Month

Links for Filing Deadlines
General Information
Filing Deadlines
  Withholding Tax Due Dates
  Corporate Estimated Tax Due Dates
  Sales and Use Due Dates
  Tire Recycling Fee Due Dates
  Motor Carrier and Fuel Reporting Due Dates
  Admissions and Amusement Tax Due Dates
Download for Adobe Reader Homepage