Corporate Income Tax Forms - 2019

NOTE: The April 15, 2020 due date for filing 2019 Maine Income Tax forms and payments has been extended to July 15, 2020. For More information, see March 2020 - #3 (PDF) issue of the Maine Tax Alert.  

• 1120ME Corporate income tax form (PDF)
  • Corporate income tax instructions (PDF) - Revised July 2020
  • New 2019 Additional Worksheet to Report Certain "Other" Modifications to Maine Income Related to Federal Tax Law Changes Enacted After December 31, 2019 (PDF) - New July 2020
• Form CR - combined return for members of an affiliated group (PDF)
• Schedule NOL (PDF)
• Corporate unitary questionnaire (PDF)
• Corporate nexus questionnaire (PDF)
• 2220ME Underpayment of estimated tax (PDF)
  • Annualized income installment worksheet for form 2220ME (PDF)
• 1120EXT-ME Extension payment voucher (PDF)

Worksheets for Tax Credits