The Hidden Property Tax Trap in Michigan: How Proposal A and Uncapping Affect Livingston County Homeowners

If you've ever looked at two nearly identical homes in Livingston County and wondered why one owner pays significantly less in property taxes than the other, you're not alone. Michigan's property tax system is unlike most states, and one of its most misunderstood features is what's commonly called the "pop-up tax."

Whether you're buying your first home in Brighton, selling a house in Howell, or relocating to Hartland, Pinckney, or South Lyon, understanding Proposal A and taxable value uncapping can help you avoid costly surprises.

At Pat Lotz Real Estate Group, we believe informed buyers and sellers make better real estate decisions. Here's what every Michigan homeowner should know.

The term "pop-up tax" refers to what happens when a home changes ownership.

Many buyers estimate their future property taxes based on the seller's current tax bill. Unfortunately, that's often inaccurate because Michigan's tax laws work differently than most people expect.

After a home sells, its taxable value is "uncapped" and reset closer to its current assessed value. As a result, many new homeowners experience a noticeable increase in their property taxes beginning the year after they purchase the home.

This often catches buyers completely off guard.

Michigan voters approved Proposal A in 1994 to help protect homeowners from rapidly increasing property taxes.

Under Proposal A, a home's taxable value can only increase each year by the rate of inflation or 5%, whichever is lower, regardless of how quickly the home's market value rises.

This means someone who has owned their home for 20 years may have a taxable value that's far lower than today's market value.

While this provides long-term tax stability for existing homeowners, it also creates large differences between longtime owners and new buyers.

When ownership transfers, the taxable value cap is removed.

The following year, the property's taxable value is reset based on its current assessed value.

For buyers purchasing in today's market, this often means:

This is why it's critical to estimate future taxes before making an offer—not simply rely on what the current owner pays.

Communities throughout Livingston County have experienced strong home appreciation over the past several years.

Areas including:

have all seen home values increase substantially.

As home prices rise while longtime owners continue benefiting from capped taxable values, the gap between existing homeowners and new buyers continues to grow.

Today, two neighboring homes with nearly identical market values may have dramatically different annual tax bills simply because one owner purchased decades earlier.

In 2026, Michigan lawmakers began discussing legislation that could significantly change this system.

Bills passed by the Michigan House propose ending taxable value uncapping beginning in 2027, pending approval through a statewide constitutional vote.

If approved, homeowners would no longer see their taxable value reset when purchasing a home.

While nothing has changed yet, this proposal could reshape Michigan real estate for years to come.

For buyers, eliminating uncapping could provide more predictable housing costs.

Instead of facing a surprise tax increase after closing, future property taxes would remain more consistent.

This may help buyers qualify for homes more confidently while making long-term budgeting easier.

Many longtime homeowners hesitate to move because purchasing another home could trigger significantly higher property taxes.

Some refer to this as the "golden handcuffs" effect.

If uncapping were eliminated, more homeowners may feel comfortable downsizing, relocating, or moving closer to family without worrying about losing their favorable taxable value.

Changes to Michigan's tax system could also influence buyer behavior.

Some buyers may wait to see whether the law changes before purchasing, while others may decide to move sooner rather than later.

As with any proposed legislation, market reactions can vary, making it important to work with a local real estate professional who understands how these policy changes affect Livingston County.

While many homeowners support making property taxes more predictable, opponents point out that ending uncapping could reduce funding for local governments, schools, libraries, and public safety.

Early estimates suggest statewide revenue reductions could total hundreds of millions of dollars during the first year if no replacement funding is provided.

Because of these concerns, the proposal continues to generate significant discussion throughout Michigan.

The most important thing is not to make decisions based on outdated tax information.

If you're buying a home in Livingston County, ask for an estimate of what your future property taxes could be after the taxable value resets.

If you're selling, understanding how taxes affect affordability can help you better prepare buyers and avoid surprises during the transaction.

Most importantly, stay informed as Michigan lawmakers continue debating possible changes.

Property taxes are just one piece of the home buying and selling process, but they can have a major impact on your monthly payment and long-term financial planning.

If you're considering buying or selling a home in Brighton, Howell, Hartland, Pinckney, South Lyon, Fowlerville, or anywhere in Livingston County, Pat Lotz Real Estate Group is here to help you understand every aspect of today's market—including Michigan's unique property tax system.

Have questions about your home's value or what your future taxes might look like?

Contact Pat Lotz Real Estate Group today at (734) 637-3668 to discuss your real estate goals with a trusted Livingston County real estate expert.