Taxable Values can be appealed annually at the March Board of Review. Property owners are provided a Notice of Assessment, Taxable Valuation and Property Classification every February via first class US Postal service. While the form indicates that “THIS IS NOT A TAX BILL”, it is an important document to review annually, as the information contained may impact your upcoming tax bill. Property owners in Michigan are given an opportunity to appeal their assessments BEFORE their tax bills are even issued for the year.