Property Tax Assessment Appeal Savings Estimator

See how much you could save by appealing a property tax assessment that sits above true market value. Combine the assessed amount, supportable value, tax rate, appeal costs, and win probability to project annual savings, payback timing, and long-term net gains.

Assessed market value on your most recent property tax statement.
Supportable market value based on comparable sales or an appraisal.
Total tax rate in your jurisdiction expressed as a percentage of assessed value.
Estimated appraisal, filing, and representation fees required to pursue the appeal.
Discount savings if your evidence is less certain. Leave blank to assume a 100% success rate.
Number of years to project savings before reassessment. Leave blank to use five years.

For planning purposes only. Consult your local assessor rules or a property tax attorney for guidance.

Examples

  • Assessed $540,000 vs. market $470,000, tax rate 1.80%, appeal cost $900 ⇒ Annual savings (gross): $1,260.00 | Probability-adjusted annual savings: $1,260.00 | Payback: 8.6 months | 5-year net savings after costs: $5,400.00
  • Assessed $685,000 vs. market $610,000, tax rate 2.10%, appeal cost $1,150, success probability 70%, 6-year horizon ⇒ Annual savings (gross): $1,575.00 | Probability-adjusted annual savings: $1,102.50 | Payback: 12.5 months | 6-year net savings after costs: $5,465.00

FAQ

What if the assessor increases my value during review?

If you believe a reassessment could raise the value, run the calculator with a smaller reduction or even an increase to see potential downside before filing.

Do homestead exemptions affect the result?

Yes. Apply exemptions to both the current and proposed market value before entering amounts so the tax rate applies to the taxable portion only.

How often can I file an appeal?

Many counties allow appeals annually. Confirm your jurisdiction's rules and rerun the calculator whenever new assessments arrive.

What probability should I choose?

Base it on the quality of your evidence. Compelling appraisals or comparable sales may justify 80–100%, while limited documentation might warrant a 50–60% probability to stay conservative.

Additional Information

  • Gross annual savings show the full tax delta; the probability-adjusted value reflects your confidence level in winning.
  • Update the savings horizon if your area reassesses more or less frequently than every five years.
  • Use conservative market value estimates backed by comparable sales to strengthen your appeal.
  • Appeal timelines vary; confirm filing windows and add expected legal costs to the appeal cost input if needed.

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