House Bill 5998 would amend Michigan’s General Property Tax Act to revise how assessors determine “true cash value” for property tax purposes. The bill keeps the general rule that true cash value means the usual selling price, but it adds and clarifies several valuation rules, including how assessors should treat certain sales data, financing costs, personal property included in a sale, survey costs, and agricultural property sales. It also preserves existing rules for nonprofit housing transfers and standard tools, and it makes the bill effective 180 days after enactment.
A major feature of the bill is a new assessment protection for owner-occupied homes. For principal residences, assessors would be prohibited from counting value increases caused by remodeling or renovation until the property is sold, so long as the work is not ordinary maintenance. The exclusion would be capped at $100,000, apply only to remodeling completed on or after January 1, 2027, and be limited to one qualifying remodeling or renovation per property owner per property. The bill also continues the current rule that normal repairs, replacements, and maintenance on residential property are not to be counted in assessed value until sale, and it specifically lists items such as roof repair, rewiring, furnace replacement, and whole-home generators as normal maintenance.
The bill’s impact on state law would be to narrow what assessors may consider when valuing property, especially for residential taxpayers, while also standardizing how sales studies and assessment data are cleaned and used by local assessors, county equalization departments, and the State Tax Commission. It would affect the General Property Tax Act by adding new statutory definitions and assessment exclusions, and it would likely reduce taxable value growth for some homeowners who undertake major renovations before selling. It also reinforces special valuation treatment for charitable nonprofit housing transfers and agricultural property sales, which could affect local tax rolls and assessment practices.
There was no recorded committee transcript or vote history provided, so the overall sentiment cannot be measured from debate or roll call data. Based on the bill’s text, the measure appears designed to provide taxpayer relief and limit assessment increases tied to home improvements, which suggests a generally pro-homeowner policy direction. At the same time, the bill would constrain assessors and could reduce local property tax revenue in some cases, particularly where major renovations would otherwise raise taxable value.
The main points of contention likely concern the scope and fairness of the new renovation exclusion. Supporters may view it as protecting homeowners from being taxed on improvements they make to their own homes before a sale, while critics may argue it creates complexity, invites disputes over what counts as remodeling versus maintenance, and could reduce local government revenue. Additional potential issues include the $100,000 cap, the one-time-per-owner limitation, and the delayed effective date for the principal-residence provision, all of which suggest the bill tries to balance taxpayer relief with administrative and fiscal concerns.
HB5998 would amend the General Property Tax Act, primarily MCL 211.27, by changing how assessors determine true cash value and what sales data may be used in assessments and equalization studies. It would add a new exclusion for value increases from remodeling or renovation of principal residences, preserve and clarify exclusions for normal maintenance on residential property, and continue special valuation rules for nonprofit housing transfers, agricultural property sales, and standard tools. The bill would affect city and township assessors, county equalization departments, the State Tax Commission, homeowners, nonprofit housing organizations, and local taxing units that may experience reduced taxable value and revenue.
No committee testimony or votes were provided, so there is no direct recorded sentiment from legislative debate. The bill’s structure suggests a favorable view toward homeowner tax relief and assessment fairness, especially for people who improve their homes before selling. At the same time, the measure would likely draw concern from local governments and assessors because it could narrow the tax base and add complexity to valuation procedures.
The likely points of contention are whether major remodeling should be excluded from taxable value before a sale, how to distinguish remodeling from ordinary maintenance, and whether the $100,000 cap and one-time limitation are appropriate. Local governments may object to the potential loss of property tax revenue and the administrative burden of applying the new rules, while homeowner advocates would likely support the bill as preventing tax increases tied to improvements made for personal use rather than market speculation.