Michigan Business Tax filers must file Form 4 (PDF) to request an extension and must file it even if the Internal Revenue Service has approved a federal extension (Form 7004). If Form 4 is properly prepared meeting all listed conditions and filed timely, Michigan Department of Treasury will grant the taxpayer an extension to the last day of the eighth month beyond the original due date regardless of whether you are granted a federal extension. Do not send a copy of the federal extension to the Michigan Department of Treasury. Retain a copy for your records.

Filing for a Michigan tax extension will not provide you with additional time to pay any tax balance due, which must be paid by your original filing deadline or interest and other payment penalties may apply.

For additional information, please visit the State of Michigan Department of Treasury website.

Print and Mail:
Michigan State Tax Extension Form 4 (PDF)

Mail to:
Michigan Department of Treasury
PO Box 30774
Lansing, MI  48909-8274