Harris County, Texas · April 2027 pilot

A clearer way to reviewproperty assessments.

TaxTally is preparing for a limited Harris County pilot around the April 2027 assessment-notice cycle. We are not currently accepting appeals or cases, collecting authorizations, charging fees, or representing homeowners.

Pre-launch research in progress

This site is informational only. It does not provide legal or tax advice, and no action is requested from homeowners today.

TaxTally methodology

Local records.
Relevant comparisons.
Measured review.

Our research combines public assessment information with recent nearby sales to identify assessments that may be worth reviewing.

Pilot focus

Harris County, Texas

Preparing for the 2027 assessment-notice cycle.

A research-first approach

What we are building.

County assessments are created at scale. A careful review may require looking beyond a single number to the property record, nearby sales, and the rules that govern a particular jurisdiction.

A disciplined comparison, not a generic estimate.

The planned review process starts with publicly available assessment data, parcel characteristics, and recent sales that appear relevant by location and property type. The purpose is to surface questions for further review—not to predict an outcome or state a savings amount.

Working principle

Evidence should be clear enough to examine, not just persuasive enough to market.

Documentation before conclusions

Planned process

How it will work.

The future pilot is being designed around a small number of accountable steps.

  1. 01

    Study the public record

    TaxTally plans to organize assessment information and potentially relevant sales data for a defined jurisdiction.

  2. 02

    Apply documented review criteria

    The model will be tested against evidence standards and operational checks before it is used for any client-facing work.

  3. 03

    Open only after compliance controls are ready

    Any future homeowner process would begin only after authorization, registration, and filing controls have been validated.

Why timing matters

Assessment and protest timelines recur each year.

Exact dates, notices, and procedures vary by jurisdiction and can change. Homeowners should consult official county and tax authority resources for current requirements.

Deliberate, not rushed

The 2027 cycle gives us time to validate the details.

TaxTally is using the period before the Harris County assessment-notice cycle to test its research methods and operating controls. That work matters because filing windows are time-sensitive, while the evidence behind a review should be considered with care.

Before launch

What we are validating.

A credible pilot requires more than a useful model. These are the controls TaxTally is validating before any public case process exists.

01

Authorization and registration

Confirming the appropriate authorization process and applicable registration requirements before any homeowner representation is considered.

02

Filing controls

Designing date-aware operating controls so a future pilot can respect jurisdiction-specific notice and protest windows.

03

Evidence standards

Testing whether public assessment records and comparable sales support a consistent, documented review process.