Mattox, Terrell & Lammert, LLC

Our Company, Mattox, Terrell & Lammert, is a property tax firm dedicated to customer service. We have found that the best consultant is the most informed one, and the best way to become informed is to get to know the clients and properties represented. We do our homework, and it shows in the tax savings achieved. We feel that each client’s needs must be met by a customized approach for each property. When you work with Mattox, Terrell & Lammert, we listen to those needs and develop a program to fit them exactly. With us, you are going to get exactly what we outline in our proposal to you, our word is our bond.

Integrity, Commitment, Result

Negotiating property tax assessments can be better described as an “art” instead of a science. There is no magic to what we do; effort is the driving force. Quite often, effort is the only difference between the person who strives for success and the person who attains it. The secret to success in the property tax business lies in knowing more about the property than the taxing authorities do. At Mattox, Terrell & Lammert, we are familiar with every aspect of the tax problems you face and offer time tested, proven methods of solution.

Our integrity is unsurpassed among government tax authorities; they know we won’t waste their time. Because property tax officials are increasingly scrutinized by outside agencies, they expect well-documented, hard evidence to substantiate any proposed value changes. With full documentation of our position in hand, we are prepared to negotiate and follow the administrative appeal process as far as necessary to obtain the desired outcome.

Property taxes are the largest single expense item, exclusive of debt service, on a commercial property’s profit and loss statement. This fact is compounded by complicated bureaucratic procedures and heavy case loads which increase the likelihood of an inaccurate assessment. It makes good business sense to constantly monitor and control property taxes on an annual and ongoing basis. Mattox, Terrell & Lammert manage real and personal property taxes with the strongest commitment to service.

Gene Mattox


Clint Terrell


Charles Lammert


Brian Wolford


Our Services

Real Estate and Personal Property Renditions and Appeals

Portfolio Tax Administration

Assistance in Litigation, Mediation & Binding Arbitration

Apply for Qualifying Exemptions

Calendar of Important Dates To Remember

  • January 1

    Date determining current year taxable value and exemption status.

  • January 31

    Last day for mailing or paying prior year tax bills.
    Deadline to file prior year’s 25.25(d) or 25.25(h) corrections.
    Prior Tax Year’s taxes must be paid or the 25.25 is not valid.

  • March

    Most Notices of Value have been sent to property owners.

  • April 15

    Deadline for filing Personal Property renditions.

  • April 30

    Deadline for filing exemptions.

  • May 15

    Deadline for filing property tax protests. (Or 30 days after delivery of Notice of Appraised Value.)

  • June – September

    Period when majority of appeal hearings are conducted.

  • October – November

    Majority of tax offices mail tax bills that must be paid by January 31 of the following year.

Mattox, Terrell & Lammert

1614 Avenue B
Katy, Texas 77493

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