Another change brought by Proposal A is the requirement to file a Property Transfer Affidavit with the local assessor when a property transfers ownership. Closing agents (attorneys, real estate offices, title companies, etc.) have these forms and will provide them to you at closing. Be sure to file these with the assessor within the 45 days to avoid a penalty.
These forms are also available at the Michigan Department of Treasury website.

WHY DOES THE ASSESSED VALUE CHANGE FROM YEAR TO YEAR?

The assessed value must reflect 50% of market value. As market values change, so does your assessment. For instance, if you add a garage to your home, the assessed value would increase.

However, should your property be permanently damaged by fire, the assessed value would decrease. Property owners have a responsibility for reporting any changes to their property that would affect values. If you obtained a building permit, our office will be notified by the Building Inspector's Office.