Most homeowners pay it, complain about it, and move on. That’s a mistake.
According to ATTOM’s latest data, the average U.S. single-family home generated a $4,427 property tax bill in 2025, up 3% from the year before. That number stings. But the real question isn’t whether your bill is high. It’s whether the value behind it is accurate.
Those are two different problems. Only one of them you can fight.
Start with the county record, not the bill
Your property tax appeal isn’t about telling the county your taxes feel too high. It’s about showing them they got the number wrong.
Pull up your county assessor’s website. Search your address. Look at what they think your home is worth and — more importantly — how they describe it.
Square footage. Finished basement. Condition. Bedroom count.
If any of those are wrong, your assessment could be inflated before comparable sales even enter the picture.
The expensive mistakes are boring ones
Nobody’s assessment gets blown up by a dramatic error. It’s usually something small.
A roof that needs replacing. A kitchen that hasn’t been touched since 2003. A lot next to a busy road. A county record that quietly lists your home as having a finished basement it doesn’t have.
County mass-appraisal systems process thousands of homes at once. They miss things. That’s not a conspiracy, it’s math.
Don’t sit on it
Every county runs its own filing calendar, and the windows can be shorter than people expect. Miss the deadline for this year’s assessment and you’re not affecting this year’s bill — you’re pushing any potential savings to the cycle after next.
Find your local deadline before you decide whether to file. That part matters regardless of how strong your case is.
What to do today
- Pull your property record on the county assessor’s site.
- Confirm the assessed value matches what your home would actually sell for.
- Check for factual errors: square footage, condition, finished spaces.
- Compare against recent nearby sales.
- Find the appeal deadline for your jurisdiction.
If the number looks wrong, you can file yourself or get help. LowerTheTax.com reviews assessments, checks the comps, and handles the filing with no upfront fee.
The bill might be set for now. The value behind it might not be.