Comptroller of Maryland. Serving the People. Peter Franchot, Comptroller
Spotlight on Maryland

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.

    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