The Story
Picture two identical houses on the same street off Green Oaks. Same builder, same year, same square footage, same roof. One owner pays about nine hundred dollars a year less in property tax than the other.
Nothing about the houses is different. One owner filed a piece of paper. The other never did.
This is the most ordinary financial story in Texas, and it repeats in every neighborhood in Arlington.
The Mechanism
Texas gives an exemption to people who live in the home they own — a residence homestead exemption. It does two separate things, and the second one is the part almost nobody talks about.
FIRST, it cuts the taxable value. The school-district portion of your bill is calculated after a large chunk of your home's value is removed from the equation. The Legislature has raised that amount more than once in recent years, so check the current figure. [VERIFY at tad.org]
SECOND — and this is the one that compounds — it caps how fast your assessed value can climb. With a homestead exemption in place, the appraised value used for your taxes can't rise more than 10% in a year, no matter what the market does. Without it, there is no cap at all.
In a market that ran as hard as Tarrant County's did, that cap is worth more over ten years than the exemption itself. It is a brake that only works if you installed it.
It costs nothing. It renews automatically. You file once.
The Opportunity That Comes To You
You already qualify or you don't — this one just sits there waiting to be claimed. If you own the home and live in it as your principal residence, it is yours for the asking. Two things people routinely get wrong:
- You can file the year you move in. The old rule that made you wait until January 1 is gone.
- You can file late. Texas allows a back-filed homestead exemption for up to two prior years, which means a refund, not just a smaller future bill.
Go to tad.org, search your address, and look at whether an exemption is showing. That check takes ninety seconds and it is the highest-value ninety seconds in this whole newsletter.
If you're over 65, or a disabled veteran, or a surviving spouse, there are additional exemptions stacked on top — including a ceiling that freezes the school-tax portion of your bill. Different form, same office.
The Opportunity You Create
Here's the part that isn't handed to you.
The exemption caps your assessed value. It does not tell the appraisal district what your house is actually worth. That second number is argued, every spring, by whoever shows up with evidence — and most people don't show up at all.
The homeowners who do best in Tarrant County are not the ones with the best houses. They are the ones with a file: dated photographs, condition notes, repair records, a documented roof age. They created that file on an ordinary Tuesday when nothing was happening, and it was waiting for them when something was.
Issue No. 2 is about exactly that — the letter TAD mails you every spring and what to do with it instead of recycling it.
And the offer I opened with: a free HomFax roof inspection at your home. Forty-five minutes. Every photograph timestamped and geotagged, matched to the NOAA hail record for your ZIP — which for this area includes June 1, 2025. You get a written condition report and you keep it, whether you ever file an insurance claim or not.
It is the first document in the file I just described, and it costs you nothing.