Texas Proposition 4: What the $18 Billion Property Tax Cut Actually Means for Houston Homeowners

Texas voters approved Proposition 4 this week with an overwhelming 83% in favor, and for homeowners across the state, the practical effect lands on your tax bill for this year — the one due in January. Here's what actually changed and what it means in real dollars.

The Headline Number: Homestead Exemption Triples

Proposition 4 raises the homestead exemption on school district taxes from $40,000 to $100,000. That's the portion of your home's appraised value that school districts can't tax at all. Homeowners 65 and older or disabled get an additional $10,000 on top of that, bringing their exemption to $110,000. This is on top of the increase from $25,000 to $40,000 that voters approved back in 2022 — the exemption has quadrupled in just two years.

Rate Compression, the Part Most People Miss

The exemption increase gets the headlines, but roughly $7.1 billion of the $18 billion package goes toward something called rate compression — the state sending money directly to school districts so they can lower their tax rates rather than relying entirely on local property tax revenue. This compresses school district tax rates by 10.7 cents per $100 of valuation for the 2023–2024 tax year. Combined with the exemption increase, this is what actually produces the bulk of most homeowners' savings.

What This Means in Real Dollars

For a home appraised at the state's median sale price of roughly $340,000, the combined effect of the higher exemption and rate compression works out to somewhere around $1,000 in savings this year compared to what the same homeowner would have paid under the old rules. State officials are projecting cumulative savings closer to $2,500 over the first two years as the compression continues to phase in. Actual savings vary by home value and district, so don't treat any of these figures as your exact number — check your own appraisal district's calculation once your 2023 statement arrives.

The Part That Applies Beyond Homeowners

Proposition 4 also caps annual taxable value growth at 20% for three years on commercial, rental, and other non-homestead properties valued under $5 million — properties that previously had no cap at all, unlike homesteads, which have carried a 10% cap for years. This cap is scheduled to expire in 2026 unless the Legislature and voters choose to extend it, so investors and landlords holding property in this category should track that date. The package also expands which small businesses are exempt from the state franchise tax entirely.

What to Actually Do Right Now

If you already have a homestead exemption filed with your county appraisal district, the new $100,000 exemption applies automatically — there's no additional paperwork required to receive the increase. If you've never filed a homestead exemption on your primary residence, this is the moment to do it; it's a simple form through your county appraisal district and it's the single most impactful thing most homeowners can do to lower their tax bill. And regardless of what this proposition delivers, an annual property tax protest is still worth doing — appraisal district value estimates and actual market value frequently diverge, and Proposition 4 doesn't change that.