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For tax years beginning on or after January 1, 2016, Corporate Income Tax began following the federal due dates for corporate returns.

  • Corporations on a calendar year and a fiscal year, other than June 30, the original due date is the 15th day of the 4th month after the end of the tax year.
  • Corporations with a fiscal year ending on June 30, the original due date is the 15th day of the 3rd month following the end of its tax year.