MCL 206.833 — Annual or final return; filing; form and content; remittance of final liability; information return; extension

(1) An annual or final return for the tax imposed under this part shall be filed with the department in the form and content prescribed by the department by the last day of the third month after the end of the taxpayer's tax year. Any final liability shall be remitted by the annual due date of the taxpayer's annual or final return, excluding any extension of time to file the return as provided under subsections (2) and (3). A taxpayer that elected to file a return for 3 years under section 813 whose tax liability under this part is less than or equal to $100.00 shall file an information return in accordance with section 711.
(2) The department, upon application of the taxpayer and for good cause shown, may extend the date for filing the annual return. Interest at the rate under section 23(2) of 1941 PA 122, MCL 205.23, shall be added to the amount of the tax unpaid for the period of the extension. The state treasurer shall require with the application payment of the estimated tax liability unpaid for the tax period covered by the extension.
(3) If a taxpayer is granted an extension of time within which to file the federal income tax return for any tax year, the filing of a copy of the request for extension together with a tentative return and payment of an estimated tax with the department by the due date provided in subsection (1) shall automatically extend the due date for the filing of an annual or final return under this part until the last day of the sixth month following the original due date of the return. Interest at the rate under section 23(2) of 1941 PA 122, MCL 205.23, shall be added to the amount of the tax unpaid for the period of the extension.