What every homeowner and real estate agent should know

Many Michigan homeowners are surprised to learn that rising home values don’t automatically mean their property taxes will spike. That’s because, while you own your home, your taxable value is capped and can only increase gradually.

But that protection doesn’t transfer to a new owner. When a home is sold, the cap is lifted, and the property’s taxable value resets the following year—often leading to a noticeable increase in property taxes.

For Buyers:

Buyers often look at the seller’s current tax bill and assume their future costs will be similar, but in Michigan, that’s almost never the case. Once the property transfers, the taxable value is uncapped and reset, beginning a new capped tax period going forward.

For Homeowners:

Homeowners often don’t fully understand how their tax protection works over time. While their taxable value is capped each year, that protection only lasts as long as they own the property—once it transfers, the cap is removed and resets for the new owner

To make informed decisions—and avoid surprises—it’s important to understand how Michigan’s property tax system is structured, how values are calculated, and what triggers changes. Here’s a breakdown of the key concepts every homeowner and real estate professional should know.

Michigan Property Tax Basics

Making sense of Michigan’s property taxes begins with learning about a few key terms:

• True Cash Value (TCV) – This is your home’s estimated market value, or what it could sell for in a typical transaction.
• Assessed Value (AV) – Set at 50% of the market value of your home (as of Dec. 31 of the previous year), this is determined by the local assessor each year.
• State Equalized Value (SEV) – The value after both county and state equalization have taken place, also representing 50% of the market value of the property. This adjusted assessed value ensures consistency and fairness statewide (and usually matches AV).
• Taxable Value (TV) – The calculation that your property taxes are based upon.

It’s important to note that AV and SEV move with the market, meaning they can rise or fall based on home values. Taxable value is capped, so it typically does not increase at the same rate as market value.

In addition, Michigan’s property tax system includes a key protection or “cap” for homeowners known as Proposal A. This states that annual increases in taxable value are limited to the rate of inflation (CPI) or 5%, whichever is lower.

This cap applies as long as the property ownership does not change. Even if your home’s market value jumps significantly in a strong market, your taxable value (property tax bill) can only increase gradually.

Property tax is computed by multiplying the taxable value by the millage rate and dividing by 1,000. Take, for example, a home with a taxable value of $132,500 in a city with homestead millage rates of 51.4691 (summer) and 1.4972 (winter). Here’s how property taxes would be estimated:

• Summer: $132,500 x 51.4691 / 1,000 = $6,820.00
• Winter: $132,500 x 1.4972 / 1,000 = $198.00

At any time, you can use the Michigan Department of Treasury’s online Property Tax Estimator tool to estimate your property taxes and compare millage rates by selecting your county, local unit of government, and school district.

What Happens When a Home Sells

One of the key aspects of Michigan property taxes comes into play when a property is sold. In the following tax year, the taxable value resets or “uncaps.” Specifically, it’s adjusted to match the SEV, which reflects current market conditions.

That means a newly purchased home may have a significantly higher taxable value than it did under the previous owner, so new buyers often pay higher property taxes than neighbors who have owned similar homes for years.

Real estate agents can help prevent surprises and prepare their buyers for potential tax increases after closing by advising against relying solely on the seller’s current tax bill when estimating future costs. The home’s SEV and projected taxable value should present a more accurate picture.

What Actually Increases Your Property Taxes

As you can see, rising market values alone do not increase your property taxes, although transfer of ownership does. Uncapping is often the largest jump a property tax bill will experience.

Property improvements and additions, or projects that add value to your home, can also increase your taxable value. Examples include:

• Adding a deck or garage
• Finishing a basement
• Building an addition

However, routine maintenance and repairs do not trigger an increase in taxable value, even though they help maintain your home’s condition. This includes:

• Replacing a roof
• Installing new windows
• Updating a furnace or HVAC system

What about refinancing your mortgage? Generally, refinancing does not increase your home’s taxable value or property taxes, since it is a financial transaction and not a change in ownership.

The Property Assessment Process

By now, you may be wondering how your home’s value is determined for tax purposes. Behind the scenes, local assessors follow a process designed to ensure fairness and consistency across properties.

Assessors are responsible for evaluating every property in their jurisdiction. Their work, which helps establish a home’s AV and SEV, typically includes:

• Discovering properties
• Classifying them as residential, commercial, or agricultural
• Estimating their market value using comparable sales, property characteristics, and neighborhood trends

Importantly, Michigan law includes a safeguard for homeowners: Assessors are not allowed to “chase a sale.” In other words, they cannot simply use your purchase price as your new assessed value. This helps prevent sudden spikes in assessed values based on one transaction.

Appealing Your Property Taxes: Know Your Rights

There may be times when you believe your property has been over-assessed. In that case, Michigan law allows you to appeal the assessment. Here are the steps involved in Michigan’s standard appeal process:

1. Review your assessment notice – This typically arrives early in the year and outlines your home’s AV, SEV, and taxable value. Be sure to check for accuracy in property details and compare with recent comparable sales.
2. Contact your local assessor – Ask how your property was valued and what comps were used. Often, issues can be clarified or resolved informally.
3. Appeal to the March Board of Review – This is a local panel that meets each year in Michigan to hear property tax appeals and correct assessment issues. You’ll want to present evidence such as comparable sales, appraisals, or documentation of property condition.
4. Escalate to the Michigan Tax Tribunal, if needed – If you disagree with the Board of Review’s decision, you can take your case to the state level. For residential properties, the deadline to file with the tribunal is July 31 of the same year.

If your assessment doesn’t reflect true market conditions or contains inaccuracies, a successful appeal can lead to meaningful tax savings year after year.

Tax Relief Opportunities in Michigan

For eligible homeowners, knowing what programs are available to relieve the tax burden can also lead to significant savings. Such programs include:

• Principal Residence Exemption (PRE) – One of the most common and valuable tax benefits for homeowners, the PRE, or homestead exemption, applies to your primary residence and exempts you from paying local school operating taxes. For most homeowners, this can reduce annual property taxes by thousands of dollars. It must be filed with your local assessor, typically at the time of purchase.
• Neighborhood Enterprise Zone (NEZ) – This program is available in select communities across Michigan, particularly in areas encouraging redevelopment. It offers a reduced property tax rate for qualified properties and often applies to new construction or rehabilitated homes (they must be owner-occupied). In Detroit, NEZ properties can see roughly a 15 to 20% reduction in property taxes compared to standard rates.
• HOPE/Poverty Exemption Programs – Michigan offers additional tax relief options for homeowners facing financial hardship. Based on household income and financial eligibility, these programs must be applied for annually through your local municipality and may require documentation such as income statements and tax returns.

Vanguard Title Helps You Make Sense of Property Taxes

Whether you’re buying, selling, or advising clients, having a clear grasp of how property taxes work can help you make more informed and confident decisions. At Vanguard Title, we’re here to support a smooth and informed closing experience. While property taxes are ultimately determined by local assessors, our team helps ensure the information used at closing is accurate and clearly communicated. We work closely with buyers, sellers, agents, and lenders to review tax details, answer questions, and help avoid surprises at the closing table

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