Prop 4 Raised Your Homestead Exemption to $100,000. Your Appraised Value Is Still the Number That Matters.

Texas voters approved 13 of 14 proposed constitutional amendments on November 7, 2023. The one with the clearest, most immediate impact on residential property-tax bills was Proposition 4, which made two structural changes: it raised the homestead exemption from school property taxes from $40,000 to $100,000, and it added voter-elected members to the boards of larger county appraisal districts. Both changes were widely reported as a win for homeowners. They are. But they address only one side of a two-sided equation.

How a Property-Tax Bill Is Actually Built

Every Texas homeowner's annual tax bill is the product of two numbers: a tax rate, set by taxing units — school districts, counties, cities, and special districts — and an appraised value, set by the local appraisal district. Under Texas Tax Code Section 26.04, taxing units must calculate and publish a no-new-revenue rate and a voter-approval rate, and they must hold elections before exceeding the voter-approval threshold. That is the rate side of the ledger, and it is largely governed by those statutory guardrails and by voters.

The appraised value side operates differently. Each year, the appraisal district assigns a value to your home. Under Texas Tax Code Section 25.19, the district must notify you of that value. If the district's number is too high — higher than what comparable homes are assessed at, or higher than what the market supports — that error compounds through every rate that is applied to it. A lower tax rate cannot fix an inflated appraisal. A larger exemption can partially offset one, but it cannot correct it.

A tax bill is a rate multiplied by a value. The rate is set by governments you can hold accountable only at the ballot box. The value is set by an appraisal district — and it is the one number in the system you can legally contest every single year.

What Proposition 4 Actually Changed

Proposition 4, as approved by Texas voters on November 7, 2023 and reported by the Texas Secretary of State's office, raised the homestead exemption from school property taxes from $40,000 to $100,000. It also made structural governance changes to larger county appraisal districts by adding voter-elected members to their boards.

The exemption increase is meaningful. Applied to a school district's tax rate, a $60,000 increase in the exemption amount reduces taxable value directly. For a homeowner in a district with a combined school rate of $1.00 per $100 of taxable value, that additional $60,000 in exempted value translates to $600 less in school taxes annually — before accounting for any other rates. That is real money.

The appraisal district board change is also significant in theory. Voter-elected members create a channel of democratic accountability that did not previously exist in the same form. Whether that accountability translates into more restrained appraisal practices over time is a question the data will answer across future appraisal cycles.

The Limit the Exemption Cannot Reach

The homestead exemption works as a deduction from appraised value before rates are applied. If your appraisal district assigns your home a value of $450,000, the $100,000 school exemption reduces the taxable base for school purposes to $350,000. That is better than a taxable base of $410,000 under the old $40,000 exemption. But it does nothing to address whether $450,000 was the right number in the first place.

If comparable homes in your neighborhood — same size, same age, similar condition — are appraised at $380,000, then your district has assigned your home a value that is out of line with its peers. Texas Tax Code Section 41.43(b)(3) gives every homeowner the right to challenge that disparity under the equal-and-uniform standard: if your appraisal exceeds the median appraisal of a set of comparable properties, you have grounds to seek a reduction. That right existed before Proposition 4 and exists in identical form after it.

The exemption increase reduced one source of tax exposure. It did not reduce the appraisal district's ability to set an aggressive — or simply incorrect — value on your home. Those are separate levers, and only one of them is in your hands.

The Governance Change: A Longer Game

Proposition 4's addition of voter-elected members to larger county appraisal district boards is worth watching over time. Appraisal district boards set policy, approve budgets, and hire chief appraisers. A board with democratic accountability to homeowners — rather than accountability solely to the taxing units that previously appointed all members — could, over successive appraisal cycles, adopt methodologies that produce more accurate and more consistent valuations.

But that is a structural reform with a long horizon. Appraisal cycles operate annually. Your notice of appraised value under Texas Tax Code Section 25.19 arrives each spring. Your protest deadline follows shortly after. Whatever direction appraisal district governance ultimately moves, the right to contest your current year's appraised value is available to you now, every year, regardless of who sits on the board.

What This Means for Your Next Protest Filing

If you qualified for the homestead exemption before Proposition 4, your school taxable value dropped by $60,000 automatically. If you have not yet filed for the homestead exemption — a gap that affects a larger share of Texas homeowners than most people expect, as detailed in our analysis at the TaxStand Insights desk — that is the first correction to make, because the exemption also triggers the appraisal cap under Texas Tax Code Section 23.23, which limits how much a homestead's appraised value can increase year over year.

Beyond the exemption, the question is whether your appraised value is accurate relative to comparable properties in your area. That is the protest question, and it is answered by evidence: sales data, appraisal records for similar homes, and the equal-and-uniform methodology available under Section 41.43(b)(3). For a detailed walkthrough of how that standard works in practice, see our guide to unequal appraisal in Texas.

Proposition 4 did real work. It reduced taxable values for homeowners across the state and opened a new democratic channel into appraisal district governance. What it did not do — what no legislative fix has ever done — is remove the appraisal district's annual discretion over the value assigned to your specific home. That discretion is the reason the protest process exists. It runs every year, and it is yours to use.