At 7.4%, Your Property Tax Bill Is a Discount Buyers Already Took

Every $100 a month of property tax on your home erases about $14,000 of a buyer's borrowing power at today's mortgage rates. That is the number to hold onto, because it means a rising tax bill does not get paid by whoever owns the home when the bill arrives. It gets capitalized into a lower sale price and paid by the person who sells.

The 2025 numbers, dated honestly

The most recent annual read comes from ATTOM, whose 2025 Property Tax Analysis was released April 9, 2026. In 2025, $396.8 billion in property taxes hit more than 89.6 million single-family homes, up 3.7 percent from 2024. The average bill rose 3 percent to $4,427. The detail that matters more: the effective tax rate climbed to 0.9 percent, up from 0.86 percent in 2024 and the highest since 2020, while the average home value fell 1.7 percent to an estimated $494,231.

That is a six-month-old annual print, but tax rates reset slowly, so the direction holds as your baseline for a 2026 sale. The share of your home's value flowing to the assessor is rising, and the question for a seller is who absorbs it.

$100 of tax is $14,000 of price

Buyers at current rates do not shop a price. They shop a monthly payment, and taxes are escrowed into it, so every dollar of annual property tax is a dollar that cannot service the loan that buys your house.

Run it at today's rate. Per Freddie Mac, the 30-year fixed averaged 7.40 percent the week of October 8, 2026, up from 7.28 percent a week earlier and roughly 6.3 percent a year ago. At 7.40 percent, every $100 a month of property tax consumes about $14,000 of loan capacity. The 2025 average bill of $4,427 is $369 a month, which alone eats around $53,000 of what a payment-constrained buyer could otherwise borrow for the structure itself.

This is tax capitalization, and it is mechanical, not opinion. The higher the bill, the lower the price a given buyer can offer while writing the same monthly check. Our guides on pricing and taxes walk through the full payment math, but the short version is that the tax line works against your number before the first showing.

Illinois vs Hawaii: a $72,000 gap

Geography sets the size of the hit. ATTOM's 2025 data puts Illinois at a 1.84 percent effective rate and Hawaii at 0.33 percent. On a $400,000 home, that is roughly $613 a month in taxes in Illinois against $110 in Hawaii. At 7.40 percent, the $503 monthly gap equals about $72,000 of borrowing capacity. Two identical houses at the same list price, and the Illinois buyer can finance roughly $72,000 less than the Hawaii buyer on the same budget. The tax rate, not the listing, sets the ceiling on offers, which is why state-level spreads matter more than national averages in our city and state rankings.

There is a timing wrinkle. ATTOM's average value fell 1.7 percent in 2025 even as bills rose, meaning assessments are still chasing prices that already peaked. Our own tracking as of August 2026 showed the typical US home near $288,608 and still up 3.0 percent year over year across more than 26,000 ZIP-level markets. The typical home is appreciating modestly while ATTOM's pricier average slips, which says the effective-rate squeeze is concentrated at the top of the market, where values corrected first and tax bills have not followed down. The national market report tracks where that split is widening.

Price it before the buyer does

Two honest caveats. Capitalization bites hardest where buyers sit at their payment limit, which is most of the market at 7.40 percent but not cash buyers or equity-rich move-up buyers. And one year's 3 percent increase, about $130 on the average 2025 bill, trims a buyer's budget by only roughly $1,500, so a single year's hike does not sink a sale.

The level is the problem, not the increment. In a high-tax state, your effective rate is a standing discount on every financed offer, and at 7.40 percent it is larger than it was at 6.3 percent a year ago. You cannot negotiate it away and a renovation will not offset it. Pull your actual tax bill, multiply the monthly figure by 140, and subtract that from what a comparable low-tax listing can command. That is the adjustment the buyer's lender already made.