Assessing Office

The Assessing Department is responsible for the inventory of all property within Ada Township and the valuation of all of its taxable property. The Assessing Office maintains records of current ownership, assessed and taxable values, property characteristics and market data. The Assessing Department follows the requirements of the General Property Tax Law of the State of Michigan.

Please feel free to stop in or call (616) 676-9191 ext. 7341 if you have any questions about your property. The assessing system is quite complex, and we are always willing to help our taxpayers understand how the system works.

Property/Assessment Search:

If you would like to review your properties' assessment information, please click here.


  • True Cash Value: The estimated market value of your property.
  • Assessed Value: One half of the true cash value. The Assessor is not permitted by State Law to set your new assessment at one-half of your purchase price. Annual changes of assessment are based on sales in the neighborhood. Your neighborhood rarely consists solely of the homes located on your street. It is your responsibility as a taxpayer to review your Property Record Card periodically to be sure you agree with all the information that is currently of record.
  • Taxable Value: The value capped by Proposal A that is multiplied by the millage rate to calculate your tax bill. Your taxable value can never exceed your assessed value.
  • Principal Residence Exemption: Residents who own and occupy a home as their principal residence may qualify for an 18 mill reduction in property taxes on the principal residence and any contiguous vacant land. Principal Residence Exemptions that are in effect January 1st of each year will stay in effect for the calendar year. The JUNE 1 and NOVEMBER 1 filing deadline for Principal Residence Exemption applies to new applications-only. You do not need to apply each year.
  • Property Record Card: Contains owner name and address, legal description, sales history, assessment history, picture of home, building sketch with square footage and other value-enhancing amenities. To view a copy of your property record visit

Field Review Notice

The Assessor is required to appraise, for tax purposes, all real and personal property within the Township. Michigan Statute requires that all property be evaluated annually based on current market conditions. This requires an inspection of each property in the Township.

Representatives of the Ada Township Assessing Department will be conducting a review of properties. This review will include checking the exterior measurements of all buildings and property improvements and taking current digital photographs.

The purpose of this review is to be certain that Ada Township's information regarding your property is complete and accurate. Our department follows the State of Michigan's recommendation that 20% of a governmental unit be visited and inspected each year.