The Michigan Department of Treasury has been made aware that some "Reminder of Tax Due" letters sent to taxpayers contain an incorrect toll-free (1-800) TTY number, which may connect callers to a potential scam. Taxpayers with questions regarding unpaid individual income taxes are asked to contact the Treasury directly at 517-636-4486. We apologize for any confusion or concern this may have caused.
Filing Requirements 4. When are CIT Annual Returns due?
CIT Annual Returns must be filed - and final liability remitted - by the last day of the 4th month after the end of the taxpayer's tax year. Taxpayers (other than Insurance Companies or Financial Organizations) are not required to file a return or pay the tax if their apportioned gross receipts are less than $350,000. The filing threshold is annualized for tax years of less than 12 months. In addition, any taxpayer whose tax liability is $100 or less does not need to file a return or pay the tax.