These deadlines are established by State law and are not determined by the local Board or the Treasurers Office.
Summer Property Tax Bill Timeline
Tax bills are mailed by July 1 of each year.
Tax bills are due September 14 by 5 p.m. of that year. Postmarks are not accepted.
After 5 p.m. on September 14 interest will be added at the rate of 1% each month or fraction of the month until paid in full.
March 1: Outstanding real property tax amounts will be sent to Ingham County Treasurer as delinquent for continued collection efforts.
Winter Property Tax Bill Timeline
Tax bills are mailed by December 1 of each year.
Tax bills are due February 14 by 5 p.m. of the following year. Postmarks are not accepted.
Any outstanding amount on February 15 will receive a one time 3% penalty and 1% interest fee.
March 1: Outstanding real property tax amounts will be sent to Ingham County Treasurer as delinquent for continued collection efforts.
Beginning March 1 of each year, all unpaid taxes (summer and winter) including additional penalties and interest must be paid to: Ingham County Treasurer P.O. Box 215 Mason, MI 48854 Phone: 517-676-7220