A new Texas Property Tax Savings Calculator gives commercial and residential property owners a way to estimate the dollar value of a successful tax protest before filing. The tool, available at The Ambrose Group, launches as appraisal notices for 2026 begin arriving in Harris, Dallas, Travis, Bexar, and Tarrant counties.
The calculator addresses a common gap in Texas tax planning. Most online tools tell property owners what they will owe. The Ambrose Group's calculator shows how much they could recover if the assessment is overstated. Inputs include current assessed value, property type, county, and the percentage reduction commonly achieved through formal protest. The output is a year-one savings estimate and a multi-year projection across a typical hold period.
David M. Ambrose, MAI, president of The Ambrose Group, explained the rationale behind the launch. “Texas property owners often discover too late that protest decisions are time-bound. The calculator turns an abstract decision into a number on the screen. When that number is meaningful, the next step becomes obvious.”
Texas counties began mailing 2026 appraisal notices in April. The state's protest deadline is May 15, 2026, or 30 days from the date the notice was issued, whichever falls later. Owners who miss the window forfeit any opportunity to challenge the assessment for the current tax year.
The calculator was developed with the firm's commercial portfolio in mind, where overassessments commonly range from 10 to 40 percent above fair market value. A $1.5 million commercial property assessed at 12 percent above market and taxed at the state's average effective commercial rate carries roughly $4,500 in annual overpayment. Over a 7-year hold, that figure exceeds $30,000 before accounting for compounding tax increases.
The Ambrose Group has applied the underlying methodology at scale. The firm averages an 18 percent reduction in arbitration cases and an additional 15 percent in litigation, with results documented across thousands of Texas commercial and residential accounts. Texas remains one of the highest-burden property-tax states in the country, with no state income tax to offset the burden on real estate.
The calculator is free, requires no registration, and is mobile-optimized for use during the period when notices are typically reviewed. Output figures are planning estimates and do not constitute a formal valuation. Owners who decide to pursue a protest can connect directly with a property tax consultant from The Ambrose Group for case-specific analysis, evidence development, and representation before the Appraisal Review Board.
The Ambrose Group has served Texas property owners since 1994 from offices in Houston, Dallas, San Antonio, and Lubbock. The firm's team includes MAI, SRA, and AI-GRS-designated appraisers and an in-house construction engineer. Services span commercial and residential appraisal, property tax consulting, cost segregation studies, real estate brokerage, and litigation support. The firm is licensed in all 50 states, with primary market concentration across Texas.
The Texas Property Tax Savings Calculator is the second tool launched on The Ambrose Group platform this year, following the cost segregation calculator released earlier in the cycle. Both are part of an effort to give property owners decision-grade math before they engage professional services.
Content strategy support is provided by marketing automation firm ASTOUNDZ.