Homeowners across the country are opening their latest property tax assessments and doing a double take.
Even in markets where home prices have cooled, many counties are still playing catch-up, reassessing homes at values that reflect the pandemic-era price spike.
In parts of Texas, Florida, and Georgia, some bills climbed by double-digit percentages in a single year.
The result: a bigger escrow shortage, a higher monthly mortgage payment, and a nagging feeling that the number on the page doesn't match what your house is actually worth today.
It's an estimate, and in most states you have a legal right to challenge it.
Counties rely on mass appraisals, meaning they value thousands of homes with broad formulas instead of walking through yours.
That leaves real room for error, from wrong square footage to outdated bedroom counts to a neighbor's finished basement getting counted twice.
Start by pulling your property's record card, usually free on your county assessor's website.
Check the basics: square footage, lot size, number of bedrooms and bathrooms, year built, and any features you don't actually have.
A surprising number of successful appeals hinge on something as simple as a screened porch that was removed years ago or a garage listed as finished when it isn't.
You want three to five recent sales of similar homes in your neighborhood, ideally within the past year.
Look for homes that sold for less than your assessed value.
Zillow and Redfin estimates aren't enough on their own, but county sales records are.
Your assessor's office can point you to them.
Many jurisdictions give you just 30 to 90 days from the notice date to file a formal appeal, and the window often closes quietly.
Miss it, and you're stuck with the number for another year.
Set a calendar reminder the day your notice arrives.
Filing is usually cheaper than people expect.
Some counties charge nothing, others a modest fee.
You can represent yourself, and many homeowners win without hiring anyone.
If you do hire a service, read the fine print carefully, since some take a cut of your savings and lock you into a multi-year contract.
A lower assessed value can shrink your tax bill, ease your escrow shortage, and trim your monthly payment the next time your lender recalculates.
In a handful of states, you can even appeal past years and get a refund.
One caveat worth repeating: an appeal isn't a sure thing, and it won't work if your home is genuinely priced in line with the market.
But it costs little to check, and the downside is usually just your time.
Our take: treat your assessment notice like a bill you're allowed to question, not a bill you have to accept.
Counties count on most people ignoring it.
Final Thoughts
The ones who bother to read the fine print are often the ones who keep a few hundred dollars a year in their pocket.