Home Values Dipped in 2025. Property Tax Bills Climbed Anyway.

Your property tax bill stopped listening to the market. In 2025 the average US single-family home lost value and the average tax bill went up anyway, pushing the effective tax rate to its highest level in five years. If you are deciding whether to hold out for a better price, that decoupling matters more than the price itself.

Bills follow budgets, not prices

Most owners assume the tax bill tracks the home's value in both directions. The most recent annual data says otherwise. Per ATTOM's 2025 Property Tax Analysis, released April 2026 and covering full-year 2025, the average single-family tax bill rose 3 percent while estimated home values fell 1.7 percent year over year to $494,231.

The aggregate numbers move the same way. Governments levied $396.8 billion in property taxes on more than 89.6 million single-family homes in 2025, up 3.7 percent from 2024. Bills up, values down: the effective rate for single-family homes hit 0.9 percent in 2025, up from 0.86 percent in 2024 and the highest since 2020, when it stood at 1.1 percent.

The mechanism is simple. Assessments and levies answer to local budgets, and local budgets do not shrink when the market softens. There is also a redistribution risk that never appears as a line item: when a jurisdiction grants large commercial abatements, the levy does not vanish, it shifts onto the parcels that remain, and those skew residential. That is interpretation, not a figure, but it explains how a bill can rise in a year your home did not.

The tax line is a rate hike your buyer already priced in

Property tax is not just your holding cost. It sits inside the monthly payment every buyer underwrites on your house, so a rising effective rate trims your buyer pool the same way a mortgage rate increase does.

Scale it against a typical home. Our July 2026 index puts the typical US value near $289,803 across more than 26,000 ZIP-level markets, up 3.0 percent from a year earlier. At the national 0.9 percent effective rate for 2025, that home carries roughly $2,600 a year in taxes, about $217 a month, deducted from a buyer's borrowing power before principal and interest. In a high-rate state the drag roughly doubles.

A five-to-one spread by state

ATTOM's state-level breakdown for 2025 puts Illinois at the top with a 1.84 percent effective rate, followed by New Jersey at 1.58 percent, Vermont at 1.40 percent, Connecticut at 1.36 percent, and Ohio at 1.32 percent. At Illinois rates, that same typical home carries roughly $440 a month in taxes alone. Hawaii posted the lowest rate at 0.33 percent, followed by Idaho at 0.39 percent, Wyoming at 0.40 percent, and Arizona and Alabama at 0.43 percent.

That is a spread of more than five to one on identical home values, a bigger swing than any recent mortgage rate move, and it compounds every year you hold. It also shows up in relative market performance; our city and state rankings are one way to see how high-tax and low-tax markets diverge.

What this does to the waiting game

Holding for a higher price used to feel free while appreciation ran in the background. The 2025 numbers say it is not. The tax bill is a rising, non-refundable carrying cost that climbed 3 percent in a year values eased 1.7 percent, and in high-rate states it is simultaneously eating the budget of the buyer you will eventually sell to. If your local math tips toward selling sooner, weigh the speed-versus-price tradeoffs honestly, including what selling fast actually costs.

The more immediate move costs nothing. Pull your current assessment, compare it to a defensible market value, and if the assessment is running ahead of a market that fell in 2025, file an appeal before your window closes. Our homeowner guides cover how to build that case. In a year when bills rose while values fell, the appeal is the one lever the levy leaves you.