Housing Prices Down 6 Percent. Your Property Tax Bill Probably Won’t Follow

On Episode 415 of the Retire SMART Podcast, “Beefing” with Housing Prices, the host flagged a frustration showing up in mailboxes across the country. Median sales prices are down 6% year over year and nearly 15% from their peak just a few years ago, yet property tax assessments keep climbing. As the host put it: “Rarely, if ever, we see property appraisers actually take action when we get negative price action in home prices.”

The stakes are concrete. If your home’s market value drops $40,000 but your assessed value holds steady or rises, you are paying tax on a phantom valuation. On a typical 1.1% effective tax rate, that gap costs a homeowner several hundred dollars a year, every year, until somebody forces a correction. Nobody is coming to force that correction for you.

The verdict: the advice is right, and the math is worse than most people think

The host is correct, and the reason traces back to how assessments actually work. Counties run mass appraisals on cycles, often every one to three years, using rolling sales data that lags the market by 12 to 24 months. When prices fall, assessors are still digesting the prior peak. When prices rise, they catch up quickly because reassessment ratchets are usually capped on the upside, not the downside.

Layer inflation on top. The Consumer Price Index sits at around 332, up from roughly 321 a year ago. Local budgets, school funding formulas, and public-employee contracts are indexed to that rising cost base. Even if your home’s market value dipped, the millage rate can rise to keep revenue flat or growing. The assessor doesn’t cut your bill because the fire department’s payroll didn’t cut itself.

Run the numbers on a $500,000 home. Say the market drops 6%, putting the realistic sale value at $470,000. Your county still has you assessed at $500,000, and the mill levy rises 3% to fund the budget. Your tax bill goes up while your equity goes down. That is the disconnect the podcast is describing, and it is the default behavior of the system.

The mortgage rate backdrop makes this worse. With the 10-year Treasury almost 4.6% and near the top of its 12-month range, 30-year mortgages are back over 5%, a level that’s “only been above 5% for a handful of days in the last two decades.” Buyers can’t stretch, sellers cut prices to transact, and the market “clears” at lower numbers. But that clearing price is the sale price, not the assessed price. The two diverge, and homeowners eat the spread.

The variable that flips the outcome: your state’s assessment rules

Whether you have any recourse depends almost entirely on state law. Some states cap annual assessment increases (California’s Proposition 13 caps reassessment at 2% per year for existing owners). Others, like Florida, cap homesteaded property at 3% but reset to market on sale. In high-cost states like California (cost-of-living index around 111) and New York (around 108), those caps are why your neighbor pays half your tax bill on an identical house.

In uncapped states, your assessment can move with the market, in theory. In practice, assessors are slow on the way down and quick on the way up. If you live in Texas, Illinois, or New Jersey (cost-of-living index around 109), an appeal is often the only mechanism that gets your number adjusted. Sentiment data confirms how stretched households are: the University of Michigan Consumer Sentiment Index is almost 50, the lowest reading in the past year. Tax overpayments hit harder when budgets are already thin.

What to actually do this quarter

1. Pull your assessment notice and compare it to three recent sales within a half-mile. Use Zillow, Redfin, or county records. If your assessed value is more than 10% above comparable closed sales from the past six months, you have a case.
2. File a formal appeal before your deadline. Most counties give you 30 to 60 days from the notice date. Miss it, and you wait another full assessment cycle.
3. Bring evidence, not opinions. Photos of deferred maintenance, recent comparable sales, and a private appraisal (typically $400 to $600) all carry more weight than “the market is down.”
4. Check your homestead, senior, and veteran exemptions. Roughly a quarter of eligible homeowners never claim exemptions they qualify for. These reduce taxable value before the millage even applies.
5. Repeat next cycle. Assessors reset. If prices stay soft, the case for a lower number gets stronger each year you build a paper trail.

The market won’t cut your tax bill. You have to.