Protest Savings Calculator

Compare your noticed (appraised) value to a target value supported by comparable sales or an unequal-appraisal argument, and see the estimated dollar savings, broken down by taxing unit.

Short answer: savings = sum over your taxing units of (taxable noticed value − taxable target value) / 100 × unit rate. Select your actual taxing units below, or enter one combined rate if you already know it — never a guessed, single blended "county rate."

Protest deadline: generally May 15, or 30 days after the appraisal district mails your notice (the Comptroller says the count starts from the mailing date, not when it arrives), whichever is later (Tax Code §41.44). Confirm your exact deadline on your notice, and file at the Texas Comptroller's property tax protest page.

JavaScript required. This calculator runs entirely in your browser and needs JavaScript enabled. For static rate tables you can read without JavaScript, see your county page.

Build your estimate

Rate source

Pick my taxing units

Enter a combined rate I already know

Taxing units

County

City

If you live outside any city limits, choose "Unincorporated / no city."

School district (ISD)

Search special districts

MUDs, ESDs, and similar districts depend on your exact address. None are selected by default — verify yours on your appraisal district's site.

Select a county first.

Property values

Noticed (appraised) value this year ($)

Target value after protest ($)

Support this with comparable sales or an unequal-appraisal comparison — see the prep checklist below.

Do you have a residence homestead exemption on this property?

Yes

Are you age 65+ or disabled?

Yes

Only affects the units-picker mode, where it adds the school homestead exemption automatically.

Per-unit savings
Taxing unit	Rate / $100	Noticed tax	Target tax	Savings

Protest prep checklist

Educational self-help checklist only — not a script to read verbatim, and not representation. You present your own evidence to your appraisal district or review board.

Comparable sales: recent sales of similar homes nearby (size, age, condition, lot), priced below your noticed value.
Condition photos: document deferred maintenance, foundation issues, or damage that would lower a buyer's offer.
Unequal appraisal: a sample of comparable properties appraised at a lower value per square foot than yours, as allowed under Tax Code §41.43(b)(3).
Your appraisal district's own record card: check it for factual errors in square footage, room count, or condition.
File on time: generally by May 15 or 30 days after your notice is mailed, whichever is later.

See the full formulas and sources on the methodology page.