Homeowners across the country are opening their property tax assessment notices this month, and a lot of them are seeing numbers that don't match what they expected.
County assessors in states like Texas, Florida, Ohio, and Georgia have been repricing homes based on sales data from the past two years — a stretch when home values climbed fast in many markets.
The result is that some homeowners are staring at assessed values 15% to 40% higher than their last notice, even if they haven't touched their house or sold anything.
And because property taxes are calculated by multiplying that assessed value by your local tax rate, a bigger number on the page usually means a bigger bill next year.
Here's the part that catches people off guard: the assessment is not your tax bill.
The bill comes later, once local governments set their budgets and tax rates.
So a higher assessment doesn't automatically mean a dollar-for-dollar tax increase.
If your city or county lowers its rate, the two can partly cancel out.
But in plenty of places, that isn't happening this year.
Many counties only reassess every two to three years, so the spike you're seeing now reflects the housing boom that already cooled off.
That timing mismatch is frustrating for anyone who bought a home near the top of the market and is now watching prices flatten or dip while their tax basis climbs.
The good news is that assessments are one of the few things in personal finance you can formally argue with, and a decent share of appeals succeed.
Nationally, somewhere around a third of homeowners who file a formal appeal get some kind of reduction, though the odds vary a lot by county.
How to push back without paying anyone: Start by pulling your notice and finding the deadline.
It's often 30 to 90 days from the mailing date, and missing it usually locks you out for the year.
Look up comparable sales — "comps" — in your neighborhood.
Your county assessor's website usually has a search tool.
Find three to five homes similar to yours in size, age, and condition that sold recently for less than your assessed value.
Check your property record card for errors.
Square footage, bedroom count, and lot size get entered wrong more often than you'd think.
An extra 300 square feet that doesn't exist is free money off your assessment.
If the numbers don't add up, file the appeal.
Many counties let you do it online, and you can represent yourself.
Bring photos of needed repairs, a recent appraisal, or a contractor's estimate for work that wasn't done.
Watch out for mailers and calls from companies offering to "fight your assessment" for an upfront fee or a cut of your savings.
Some are legitimate, but you can file on your own for free in most jurisdictions.
Never pay a stranger who contacts you first and pressures you to sign something quickly.
One more thing worth checking: exemptions.
Veterans, seniors, and disabled homeowners qualify for breaks in many states, and some people never claim them.
Homestead exemptions can also cap how much your assessed value rises each year in places like Florida and Texas — but only if you've filed the paperwork.
Our take: an assessment notice is a starting offer, not a final verdict, and counties count on most people shrugging and paying.
Spend an hour with your county's website and a few comps.
Final Thoughts
The worst case is you lose the appeal and you're exactly where you started.