Property Tax Assessment Protest Savings Calculator
Calculate how much money you save by protesting your county property tax appraisal (Texas CAD, Florida TRIM). Compare doing it yourself (DIY) versus hiring a contingency-based tax agent.
11. County Notice of Appraised Value
The newly proposed market value on your spring appraisal notice.
Realistic market value substantiated by comparable neighborhood comps or needed repair estimates.
22. Exemptions & Combined Tax Mil Rate
✓ Texas expanded school ISD homestead exemption to $100,000 under SB 2.
Combined millage rate for School District (ISD), County, City, and MUD/Hospital (typically 1.8%–2.6% in TX).
Most property tax reduction agencies charge 35%–50% of the first-year tax savings as their fee.
Protest Tax Savings Breakdown
Deadlines & Winning Protest Grounds
Statutory Filing Deadline: 15 de Maio (ou 30 dias após o aviso)Demonstrate that similar neighboring properties in your subdivision are assessed at lower median dollar-per-square-foot rates.
Submit photographic proof and independent contractor repair bids for roof damage, foundation settling, aging HVAC, or outdated interior finishes.
How it works
1
Select your jurisdiction (Texas, Florida, Georgia, California, or Custom) to load regional tax millage defaults and deadlines.
2
Enter the proposed market value from your county appraisal notice.
3
Input your targeted realistic market value supported by comparable sales or needed repair estimates.
4
Specify whether you have an active primary residence homestead exemption and your combined property tax rate.
5
Review your gross annual tax savings, monthly mortgage escrow relief, and compare DIY savings versus hiring a tax protest agent.
Frequently asked questions
What is a Property Tax Protest?
A property tax protest is a formal legal appeal submitted to your County Appraisal District (CAD) and Appraisal Review Board (ARB) challenging the government's proposed valuation of your property as either excessive or unequally appraised compared to neighboring homes.
What are the most effective strategies to win a property tax protest?
The two primary legal avenues are: (1) Unequal Appraisal (Equity Appeal), proving that the county assessed comparable homes in your immediate subdivision at a lower dollar-per-square-foot rate; and (2) Deferred Maintenance & Physical Condition, submitting documented contractor bids for foundation leveling, roof replacement, plumbing repairs, or water damage that lower actual fair market value.
What is the property tax protest deadline in Texas?
In Texas, the statutory deadline is May 15 (or 30 days after the date the appraisal district mailed your Notice of Appraised Value, whichever is later). Missing this deadline forfeits your protest rights for the tax year.
How does a successful protest lower my monthly mortgage payment?
Most mortgage servicers collect property taxes each month through an escrow impound account. If your annual property taxes are lowered by $1,800, your servicer conducts an annual escrow analysis and decreases your required monthly mortgage escrow payment by $150/month.
Should I protest on my own (DIY) or hire a contingency tax protest firm?
Third-party reduction firms charge 35% to 50% of the first-year tax savings as their contingency fee. Filing yourself online directly via your county's e-file portal takes under an hour using basic photos and comps, allowing you to keep 100% of the savings.
Is this tool free?
Yes. The site is supported by ads, so you never pay or need to create an account.
Does it work on mobile?
Yes. The page adapts to your screen and does not require installing any app.