The Internal Revenue Service opened the Individual Income Tax (IIT) 2017 filing season on January 23, 2017. Michigan began retrieving and acknowledging IIT e-file returns on that day.
City of Detroit Corporate Income Tax and Withholding Tax
Beginning in January 2017, the State of Michigan will administer the Corporate Income Tax and Withholding tax for the City of Detroit. Drafts of City of Detroit CIT and Withholding forms have been posted for review under their respective links. Draft City of Detroit Withholding e-file information (schema, developer guides, etc.) has also been posted. Draft City of Detroit CIT e-file information (schema, developer guides, etc.) will be posted as it becomes available.
E-file. Good for you. Good for Michigan.