How to Protest Your Harris County Property Appraisal

Appraisal notices from the Harris Central Appraisal District arrive in spring, and the protest deadline is short: generally May 15, or 30 days after the notice was mailed, whichever is later. Many homeowners never file because it feels like paperwork with no payoff. Some of them are right. Others leave real money behind, and the difference comes down to evidence.

First, decide whether a protest is worth your time

The appraisal district values your home as of January 1 using mass appraisal. It is not looking at your kitchen or your foundation. A protest has a chance when the appraised value is above what comparable homes actually sold for, or when your home has condition issues the district cannot see. If your value rose in line with your neighbors' and the number matches recent sales, a protest is unlikely to move it.

What evidence actually moves the number

• Recent sales of similar homes in your subdivision or immediate area, similar in size, age, and condition, closing before January 1.
• Documented condition problems: repair estimates for foundation, roof, or flood damage, with photos and dates.
• Errors in the district's record: wrong square footage, a pool you do not have, a bedroom count that is off. These are the easiest wins.

How the process works

You file your protest online or in writing before the deadline. The district typically offers an informal review first, where staff may agree to a lower value after looking at your evidence. If you do not reach agreement, your case goes to the Appraisal Review Board, a panel of local residents, for a hearing. You present your comparables and documentation, the district presents its case, and the board decides. You can represent yourself, and many homeowners do.

Things I tell clients to keep in mind

Homestead properties have a cap on how much the taxable value can rise in a year, so your savings from a protest may be smaller than the headline value drop suggests. Also, a lower appraised value helps your tax bill, but it does not change what your home is worth on the market. Keep your evidence accurate and calm. A tidy folder of three or four strong comparables does more than a long argument.