Harris County Property Tax Protest FAQ

The Appraisal Review Board (ARB) is an independent panel of Harris County citizens that hears property tax value disputes. After you file a protest, you first go through an informal negotiation with HCAD — usually through iSettle or a phone call with an appraiser. If that doesn't produce a settlement you're willing to accept, your case automatically advances to a formal ARB hearing.

At the hearing, you and HCAD each present evidence to a three-member panel. HCAD goes first, then you present your case. The panel may ask questions, then deliberates and issues a binding ruling on your assessed value — either immediately or within a few days by mail.

iSettle is HCAD's online settlement tool, available through the iFile portal at hcad.org, that lets you review and accept a proposed reduction without ever going to a formal hearing. It typically offers a modest reduction based on a quick review of your property data and comparable sales.

Whether to accept depends on how significant the offer is relative to your evidence. If your equity analysis shows you're substantially over-assessed compared to similar properties, rejecting iSettle and proceeding to the ARB often produces a better result. If the offer already reflects most of the gap, accepting saves time and carries no risk of a worse outcome.

You can absolutely represent yourself. Texas law gives every property owner the right to protest and appear at their ARB hearing without hiring an agent. Tax agents typically charge a contingency fee of 25–40% of your first-year savings, so self-representation keeps the full reduction in your pocket.

The main advantage of an agent is experience with the hearing format and existing relationships with HCAD appraisers. But a well-prepared homeowner with solid equity comparable data — like the analysis ProtestEdge provides — can be just as effective. The ARB responds to evidence, not credentials.

The most persuasive evidence for a residential protest is an equity comparison — a side-by-side showing that similar homes in your neighborhood are assessed at lower values than yours. This directly argues that HCAD has applied its standards unequally, which is the strongest legal basis for a reduction under Texas Tax Code §41.43.

Supplemental evidence includes: documented CAMA data errors (incorrect square footage, bedroom count, year built, or condition rating), written contractor estimates for deferred maintenance or significant damage, and any comparable sales below your noticed market value. Organize everything as clearly labeled, numbered exhibits so the panel can follow along while you speak.

Print five copies total: one for each of the three ARB panel members, one for the HCAD appraiser who will be presenting the district's case, and one for yourself to refer to as you speak.

Arriving without enough copies slows your presentation and makes a poor impression on the panel. Bundle each set with a binder clip and hand them out at the start of your presentation before you say anything else.

Yes — HCAD allows one postponement per protest. Log in to your iFile account at hcad.org and submit the request at least two business days before your scheduled date. You'll be assigned a new hearing date, though it may be several weeks later during peak season.

Act as early as possible if a conflict comes up. The window to reschedule is fixed, and options narrow significantly the closer you get to the hearing date.

If you miss your scheduled ARB hearing without requesting a postponement in advance, your protest is typically dismissed and your assessed value stands as noticed. You won't receive a reduction for that tax year.

In cases involving a documented emergency — hospitalization, natural disaster — you may be able to request reinstatement, but there is no guarantee HCAD will grant it. Treat your hearing date as a hard deadline.

Protest season opens in April when HCAD mails notices. The filing deadline is typically May 15 (or 30 days after your notice date, whichever is later). iSettle offers and informal settlement calls happen through May and June. If you proceed to an ARB hearing, most residential cases are scheduled between June and August.

Final certified values are typically released in October or November. Your reduced assessed value is reflected in the tax bill you receive in January of the following year. From start to finish, the whole process runs about six to eight months.

Your ProtestEdge report is a formatted equity analysis comparing your property to similar homes in your neighborhood that are assessed at lower values — with HCAD account numbers, square footage, year built, and side-by-side assessed values included for each comparable. It's structured specifically to serve as an ARB exhibit.

At your hearing, present it as your primary exhibit: hand a printed copy to each panel member and the HCAD appraiser before you begin, then walk through the comparables in order. The panel responds to structured, data-driven presentations — this format is designed to do exactly that.

The ARB can theoretically increase your value if HCAD presents compelling evidence that your property is significantly under-assessed — but this is rare in practice, especially for equity-based protests. Under Texas Tax Code §41.43, once you've filed a protest, the burden of proof is on HCAD to demonstrate their value is correct.

If you're concerned about a counter-increase, stick to an unequal appraisal argument (equity comparables) rather than a pure market value argument. The ARB is legally prohibited from raising your assessed value above the noticed amount on an unequal appraisal protest.