The Harris County Homeowner Playbook

1. How to use this site

Three steps: find your parcel, read your pin, read your report.

Finding your parcel

On the map, type your address or 13-digit HCAD account number in the search box at the top. Autocomplete shows matches; tap one to fly the map to the pin. You can also pan and zoom freely — the whole county fits on one screen at the default zoom.

Search by owner name is intentionally not supported — HCAD already publishes that search at hcad.org; this site keeps the interaction address-first.

Reading a pin

Each pin's color reports how the parcel's 2026 HCAD appraisal compares, on a per-square-foot basis, to the median of 5 comparable neighbors (same HCAD neighborhood code, same grade, ±15% square footage, ±10 years of age).

• Strong case — more than 7% over the per-sqft median. §41.43(b)(3) reduction likely.
• Consider filing — 2–7% over. A reduction is possible; panel may push back on specific comps.
• Skip — within the noise band (5% under to 2% over). Not worth filing.
• Don't file — more than 5% under the median. The ARB has authority to raise appraisals; filing here is risk-only.
• No comps — fewer than 5 neighbors matched the filters. Unusually old, new, large, or odd-grade homes. Review by hand.
  How comps are chosen. For each parcel, the tool searches HCAD for homes that match four filters — same neighborhood code, same grade, living area within ±15%, year built within ±10. The 5 geographically closest matches become your comps. “No comps” means fewer than 5 properties cleared all four filters.

Extra badges:

• Orange ring — the home is homestead-exempt and HCAD's 2026 appraisal jumped more than 10% over 2025, triggering a possible Tex. Tax Code §23.23 cap claim.
• "methods differ" tag — the per-sqft test and the raw-dollar test land on opposite sides of the file/skip line. Read the report's methodology note before deciding.

Reading a report

Tap any pin and hit View report. The report opens with a big FILE or DON'T FILE verdict banner, then:

• Page 1 — Your case. Your parcel's facts, the 5 comps that drove the verdict (on both per-sqft and raw-dollar bases), and the bottom-line math: median $/sqft → fair value → HCAD appraisal → over-assessment.
• Page 2 — Hearing script. Your personalized “what to say” transcript for the ARB panel, with your specific numbers filled in. The generic filing steps, rebuttals, and what-not-to-argue list live in the Playbook (here) so the report itself stays focused on what only it can do: speak in your voice with your numbers.

The report is a preparation tool, not evidence — the homeowner builds their actual evidence by pulling each comp's record from hcad.org and writing their own one-page statement. See How to file an appeal below for the full packet-building workflow. The report prints cleanly as a worksheet; every report has a shareable URL (report.html?a=<your-account>) so you can text it to a neighbor.

2. How to file an appeal

One deadline, three ways to file, one decision point after you file.

Three ways to file

1. HCAD iFile (online). Log in at owners.hcad.org with the iFile number printed on your Notice of Appraised Value, then follow HCAD's protest wizard. It walks you screen-by-screen through verifying your account, exemption status, the iSettle opt-in (see below), your protest grounds, Opinion of Market Value, and document upload. Read each screen carefully — the wizard is self-explanatory once you're logged in. Fastest path; what most homeowners use.
2. Mail a written protest. A signed letter citing your HCAD account number, the protest grounds, and your contact info — postmarked by your iFile-dashboard deadline (May 18 for most homeowners this cycle). HCAD's mailing address is on your Notice.
3. In person at HCAD's office. 13013 Northwest Fwy, Houston TX 77040. Bring your evidence packet (see below) and a walk-in protest form; a clerk can help you file. Slowest and requires a drive up the Beltway; only worth it if you're there anyway or want the in-person handoff.

Building your evidence packet

Important: the report on this site is a preparation tool, not official evidence. The ARB panel wants records from authoritative sources — HCAD's own database, plus any photos, permits, or estimates you have. The report tells you which comps to pull and how the math works; you assemble the actual packet from HCAD's website and your own files.

Three things go into your packet:

1. HCAD's record for each of your 5 comps. Look up each comp on hcad.org's Property Search by account number, then save or print the results page (which shows the 2026 appraised value, sqft, grade, year built, and neighborhood code). Verify each comp matches your home's filter criteria; swap any that don't. These printouts are the authoritative comparable-property evidence the ARB recognizes.
2. Your own one-page written statement summarizing: your HCAD account, the 5 comps, the median $/sqft, your implied fair value (median $/sqft × your sqft), the gap between that and HCAD's appraisal, a one-sentence §41.43(b)(3) ask (“I request my 2026 appraised value be reduced to $X”), and the §23.23 cap math if your report flagged a cap claim. Sign and date it. This statement is what the statute expects from you.
3. Anything else that hurts your value — photos of deferred maintenance, flood or storm damage, failing systems, foundation issues; contractor estimates; recent below-appraisal closing documents; permit records (or the absence of permits, relevant to the §23.23 cap new-improvement carve-out).

Upload all three when HCAD's wizard prompts you. Don't upload the report from this site — it's your prep tool, not part of your submission.

iSettle vs. the ARB hearing

During the iFile wizard, HCAD asks whether you'd like to opt into iSettle — an electronic process that, in HCAD's words, “takes the place of an informal meeting with an appraiser.” Choosing Yes requires you to enter an Opinion of Market Value on the same screen; choosing No skips the electronic-settlement step and your protest goes to the formal ARB hearing path once filed.

Use the report's fair value (median $/sqft × your sqft) as your Opinion of Market Value. After submitting, HCAD's appraisal staff reviews your file electronically and either makes a settlement offer or declines. Two rules of thumb when an offer arrives:

• If HCAD's offer matches or beats your fair value, accept it. Your case closes without a formal hearing.
• If the offer is materially short of your fair value, reject it and proceed to the formal ARB hearing. Formal panels often produce larger reductions than the informal offer.

What to say at the hearing

Your report's Page 2 has the personalized hearing script with your specific numbers. At a high level, every §41.43(b)(3) hearing follows the same arc:

1. State the claim. "I'm protesting under unequal appraisal — my appraisal exceeds the median of comparable properties."
2. Introduce the comps. "Here are 5 comps from my HCAD neighborhood code, same grade, within ±15% square footage and ±10 years of age. Their median $/sqft is X."
3. Apply the math. "Multiplied by my square footage, that implies a fair value of $Y. HCAD appraised me at $Z — a gap of W%."
4. Ask for the remedy. "Under §41.43(b)(3), I'm asking the Board to lower my appraisal to $Y."

What NOT to argue

These arguments are common and mostly fail at ARB panels:

• "My taxes went up." The ARB reviews appraisal, not tax. Tax is set by your taxing units (your city, ISD, MUD, hospital district, etc.) when they vote their annual rates.
• "I can't afford it." Not a statutory ground. Sympathetic but irrelevant to the panel's standard.
• "My neighbor's appraisal is lower." Close, but comps need to be appropriately adjusted — same neighborhood code, grade, and size-and-age band. One low-appraised neighbor isn't a median; 5 are.
• "The market crashed / mortgage rates are up." Not relevant to a §41.43(b)(3) unequal-appraisal claim. Could be relevant to a §23.01 market-value protest, which is a different ground this tool doesn't cover.

§23.23 Homestead Cap — a separate ground

If your report shows an orange ring, your parcel may have a Tex. Tax Code §23.23 claim independent of the per-sqft test. The cap limits a homestead's appraised value to prior-year appraised value × 1.10 + the value of new improvements. If HCAD blew past that ceiling, you can ask the ARB to enforce the cap — even if your per-sqft comparison comes out green or purple. Your report walks through the math and the exact language to use.

3. How to validate & track your appeal on HCAD

After you file, HCAD is the source of truth. Here's how to follow your protest through to its outcome.

Finding your parcel on hcad.org

Go to hcad.org and use their Property Search tool — by address, account number, or owner name. Your parcel's page shows the same 2026 appraised value this tool uses, plus HCAD's authoritative record of your exemptions, prior-year values, and ownership. Always cross-reference before filing.

Confirming your protest was received

After filing, HCAD sends a Notice of Protest Received to your mailing address (or email, if you opted in through iFile). Keep it — it's your proof of timely filing. If you don't get one within ~2 weeks of filing, call HCAD's customer service line to verify.

Finding your hearing date

ARB hearings in Harris County run from May through October each year. HCAD mails a Notice of Hearing at least 15 days in advance with your date, time, and whether it's a formal (in-person) or informal (by phone or online) hearing. If you didn't receive one and you're past the filing deadline, check your iFile account's Messages tab.

Reading the release letter

After your hearing, HCAD sends an ARB Order Determining Protest. Look for two numbers:

• Initial Appraised Value — what HCAD originally posted on your 2026 Notice.
• Final Appraised Value — what your 2026 appraisal is now, after the hearing. This is the number your taxes will be calculated on.

If Final < Initial, you won a reduction. If Final == Initial, the panel denied your protest (appraisal stays). If Final > Initial, the panel raised your appraisal (rare, but statutorily possible). Historical rates are on the Appeals & History page.

If you disagree with the ARB outcome

You have a narrow escalation path under Tex. Tax Code Chapter 42: judicial review in Harris County district court. §42.26(a)(3) is the provision most relevant to this tool — it statutorily prohibits HCAD from presenting market-value rebuttal to a median-of-comps showing in court. You must file suit within 60 days of the ARB order. For anything more than a small amount, this step requires a property tax attorney.

Glossary

Appraised value

HCAD's number used to calculate your property tax. After the §23.23 cap on a homestead, this may be lower than market value.

Market value

HCAD's estimate of what your home would sell for. The starting point for appraised value, before exemptions and caps.

Grade

HCAD's internal quality/construction rating (A, B, C, D, E, F with + / − modifiers). Comps must share your grade to be valid.

Neighborhood code

HCAD's internal grouping of similar homes for mass-appraisal purposes. Not a real-world neighborhood name — it's a 3-digit code HCAD's model uses to set baseline values.

Per-sqft ($/sqft)

Appraised value divided by living-area square footage. The uniformity metric HCAD itself uses internally and the Texas Comptroller's Property Value Study audits against.

Unequal appraisal

The ground codified at §41.43(b)(3): your appraisal is higher than the median of a reasonable number of appropriately-adjusted comparables.

iFile / iSettle

HCAD's online portals. iFile is where you file your protest and attach supporting documents; iSettle is HCAD's informal-offer system that can resolve your case without a formal ARB hearing.

ARB (Appraisal Review Board)

The independent panel that hears protests at HCAD. Three lay members per panel, appointed by the local administrative judge. Their orders can be appealed to district court under Chapter 42.

Formal vs. informal hearing

Informal = by phone or online with a single HCAD staff appraiser (usually an iSettle offer); Formal = in-person (or scheduled Zoom) with a three-member ARB panel. Formal hearings produce the binding order.

FAQ