Individual Income Tax return 1040 is due by April 15, 2010
Due dates for Partnerships:
Generally, a domestic partnership must file Form 1065 by 15th day of the 4th month following the date its tax year ended.
If Partnership is unable to file on time, it can request a 4 month automatic extension.
Due dates for Corporations C:
Generally, a corporation must file its income tax return by 15th day of the 3rd month after the end of its tax year. A new corporation filing a short-period return must generally file by 15th day of the 3rd month after the short period ends. A corporation that has dissolved must generally file by the 15th day of the 3rd month after the date it dissolved.
A six month extension is available for corporations unable to file on time.
Due dates for Corporations S:
S Corporations must file by the 15th day of the 3rd month after the end of its tax year.
For calendar year corporation, due date is March 15, 2010.