Dallas County Property Tax Protest: How to Do It Yourself
If your Dallas County appraisal notice shows a value that seems too high, you can protest it — free, on your own, without hiring a company. The Dallas Central Appraisal District/DCAD runs the process, and most homeowners can navigate it start to finish in a few hours. This guide covers who handles your protest, what grounds you can use, how to file, and what evidence actually works.
Who Handles Your Protest: DCAD and the ARB
DCAD sets your property's appraised value — the number your tax bill is based on. It is separate from the cities, school districts, and other taxing units that collect taxes; it only determines value. A successful protest lowers that appraised value, and every taxing unit adjusts your bill accordingly.
Hearings are decided by the Appraisal Review Board/ARB — an independent panel, not DCAD staff. The ARB's job is to weigh your evidence against DCAD's, not to defend the district's figure.
The Protest Deadline — Confirm It Before Anything Else
Under Texas law, the protest deadline is generally May 15 or 30 days after DCAD mailed your Notice of Appraised Value, whichever is later. Miss it and you lose your opportunity for that tax year — there is no grace period. Verify the current deadline at dcad.org before filing.
Grounds for Protest: Two Arguments Worth Making
You need a legal ground — a reason — to file. For most Dallas County homeowners, two grounds apply:
- Market value: DCAD's appraised value exceeds what your home would realistically sell for today. Support this with recent comparable sales — similar homes nearby that sold for less.
- Unequal appraisal (equity): Your home is assessed at a higher ratio to market value than comparable nearby properties. Texas law lets the uniformity argument succeed independently of any market-value dispute.
You can check both grounds on the same protest form — most homeowners do, and it costs nothing extra to argue both simultaneously.
How to File Your Protest With DCAD
DCAD accepts protests online via its e-file portal at dcad.org, by mail (Form 50-132), or in person. Online filing is fastest and generates a confirmation. Be explicit about the grounds you are protesting: market value, unequal appraisal, or both. You do not need to submit evidence at filing; bring it to the hearing.
After filing, DCAD may send an informal settlement offer before your ARB hearing — many protests resolve here. If you reject it or don't receive one, your case moves to a formal ARB hearing (usually 15–30 minutes) where both sides present evidence and the panel decides.
Dallas County by the Numbers: What DCAD Values and What the County Charges
The figures below come from the Texas Comptroller's 2025 County Report of Property Value (data version January 28, 2026) and put your own notice into context.
| Measure | Dallas County | What it means |
|---|---|---|
| Total market value | $600.7 billion | Total value placed on property here before any exemption is applied. |
| Taxable value (General / Road & Bridge) | $449.3 billion | What is left once exemptions — the homestead exemption above all — come off. |
| County tax rate, 2025 | $0.21550 per $100 | The county share only. School district, city and special districts charge separately on the same value. |
| County levy | $0.968 billion | Total collected by the county at that rate. |
What this means for your bill. On $300,000 of taxable value the county line alone runs about $646 a year ($300,000 ÷ 100 × $0.21550). Take 10% off the appraised value and that line drops by roughly $65 — and the identical reduction then applies to every other rate charged on the same value, which is where the bulk of any saving comes from. Dallas carries the second-largest tax base in Texas, so even a modest percentage error translates into real money. Your own rates appear on your tax bill.
Evidence That Moves the ARB
Bring printed copies of everything — the ARB panel will not scroll through your phone. The most persuasive evidence:
- Recent comparable sales (comps): 3–5 homes in your neighborhood with similar square footage, lot size, age, and condition that sold within the past 12 months for less than DCAD's appraised value.
- Appraised value per square foot for neighboring properties from DCAD's public records — useful for an unequal-appraisal argument if your per-square-foot figure is higher than nearby homes.
- Photos or repair estimates documenting condition issues DCAD may not have accounted for — foundation problems, roof damage, deferred maintenance.
- A recent independent appraisal, if you have one (from a refinance, for example) — it carries real weight with the ARB.
A reduction is not guaranteed — it depends on how well your evidence aligns with the ARB's standards. Strong, current comps are the most reliable path.
Questions Dallas County Homeowners Ask
Does filing cost anything?
Nothing. Filing with DCAD is free. A cost only arises if you hire a protest firm, which normally keeps part of the first-year saving.
Market value or unequal appraisal?
Choose both where you can. One argues the figure is too high outright, the other that neighbours with similar homes are carried lower per square foot — and that second route wins cases in Texas by itself.
What happens if I lose?
The appraised value stands as it was. You have spent your time, not money — filing itself costs nothing.
When exactly is the deadline?
May 15, or 30 days after DCAD mailed your Notice of Appraised Value — whichever is later. The date on the notice governs; verify it at dcad.org.
Do I have to appear before the ARB?
Frequently no — DCAD tends to make an informal offer first, which settles a large share of cases. Decline and a short formal hearing follows.