Assessment Report

Assessment Report

The economic climate in Michigan has caused a downturn in property values in the past few years that have affected the City of Royal Oak. Annual figures set by City Assessor James M. Geiermann and approved by the State Tax Commission show that all values for commercial, industrial and residential properties are very active.  Royal Oak’s total tax base or taxable value improved to $3,677,757,220 for an increase of $298,187,220 or 8.82%.

Royal Oak Taxable Values






Assessed Value

Value determined by the City Assessor, based on real estate sales studies and should represent 50% of market value.

State Equalized Value

The final value figured by multiplying the assessed value by an applicable equalization factor. The City of Royal Oak’s tentative equalization factor is 1.00. This means that assessed valuation and equalized valuation are the same.

Capped Value

The prior year’s taxable value minus any losses (a garage demolition) times the Inflation Rate Multiplier or 5%, whichever is less, plus any new construction (a new garage).

Taxable Value

The value on which property taxes will be computed. This will be the assessed value or the capped value, whichever value is less.

The percentage increase in overall value this year (8.82%) in contrast to 6.84% in 2022 reflects a continued vibrant market in Royal Oak equal in comparison to Oakland County as a whole.

Since the enactment of Proposal A in 1994, taxable value has been the base for figuring property taxes in Michigan. (See the adjoining box for a history of taxable values).

The 2023 City tax rate is 17.6187 mills (per $1,000 of taxable value). The rate includes 6.8118 mills for operation, 3.6615 for Police, Fire, EMS, 2.3026 for roads, .5723 for drain,  1.0000 for library bonds, 2.3571 for refuse and recycling, .0134 for publicity tax, .7000 for parks, forestry, recreation, playgrounds & animal shelter, and .2000 for senior services.

The State Constitution requires that properties be assessed at 50% of their true cash value. In 1994, Proposal A provided for a limitation on increases relative to property taxes. The intention of this provision was to curb runaway inflation. The limitation was accomplished through a process that restricts increases to the previous year’s taxable value by the rate of inflation or 5%, whichever is less. The 2023 Inflation Rate Multiplier (IRM) is higher than 2022 at 1.05%.

When a property sells (transfers), the Taxable Value will be uncapped to its State Equalized Value in the next tax year and the capping process begins anew.

Frequently Asked Question

A question most frequently asked is, “If a property has an assessed value of $100,000 (meaning a true cash value of $200,000) and I purchase said property for $300,000, is my new assessed and taxable value going to be half the sale price?”

This example describes the practice of “following sales”. As described, the example is both unconstitutional and illegal. In explanation, for the purpose of taxation, properties are appraised on a mass basis. Mass appraisal analysis combines a cost approach for every property that is modified by actual sales that occur over a specific period of time.

Buildings are appraised according to their attributes (story height, square footage, etc.) and grouped as neighborhoods. A neighborhood is a group of properties that enjoy and/or suffer from the same influences. Each neighborhood is reviewed annually and adjusted from sales that have occurred over a one-year period. Each neighborhood sale is reviewed to determine if it is an arms-length transaction that is representative of normal market activity. Each representative sale within the neighborhood is compared to the previous assessed value to see if the neighborhood warrants any adjustment. The Assessed Value of a sale is not, and cannot be, automatically adjusted to 50% of the sale price.