The school tax freeze is the most powerful senior tax protection in Texas — but it only works if you understand exactly when it locks, what it covers, and what happens if you sell and move. Everything that matters, explained without jargon.
When a Texas homeowner turns 65 and files for the over-65 homestead exemption, the school district portion of their property tax is frozen at that year's amount. Not capped. Not indexed. Frozen.
It doesn't matter if your home's appraised value rises from $400,000 to $600,000 over the next decade. Your school tax bill stays at what it was the year you turned 65 and established the freeze. The appraisal can go up every year. The school tax cannot.
Texas Property Tax Code Section 11.26 governs this. It applies to all Texas school districts — NISD, Northside ISD, NEISD, SAISD, all of them.
The amount frozen is the school tax you actually owe in the first year you qualify — meaning the first January 1 when you are 65 or older and the property is your primary residence. If you turn 65 in March 2026, your freeze amount is based on your 2026 school tax bill.
If you bought a $400,000 home and your 2026 school tax (after the $200,000 combined exemption) is $2,700, that $2,700 is your ceiling. Forever.
If you establish the freeze and then die, your surviving spouse maintains the frozen ceiling — permanently — as long as they are at least 55 years old at the time of your death and continue living in the property as their primary residence.
This protection is commonly misunderstood. Many couples believe the freeze terminates when the qualifying spouse dies. It does not. The surviving spouse inherits it. This matters significantly for retirement planning when spouses are different ages.
If you sell your home and buy a new one in Texas, the freeze does not transfer automatically. You'd establish a new freeze at the new home's tax amount in your first qualifying year there.
However, there is a portability provision: if your new home's school tax ceiling would be lower than your old one, you can transfer the lower amount. If the new home's school tax is higher than your existing frozen ceiling, you keep the lower amount. This portability requires filing with the new school district within one year of moving.
Adding a room, finishing a garage, installing a pool — any improvement that increases the property's appraised value can permanently raise the frozen ceiling. The school tax may increase by an amount proportional to the improvement's value.
Routine maintenance and repairs don't trigger this. Only structural improvements that increase the appraised value. Budget accordingly if you plan significant renovations post-purchase.
School district tax is the largest single line item — typically 60–65% of a total Bexar County tax bill. The freeze covers that portion completely.
Bexar County, City of San Antonio, University Health (hospital district), and other taxing entities are not frozen. Those bills continue to reflect actual appraised value and will drift upward as appraisals rise. Your total tax bill will still increase over time, but more slowly than without the freeze.
The freeze does not apply automatically when you turn 65. You must file Form 50-114 (General Residential Homestead Exemption Application) with your county appraisal district, checking the over-65 box. The deadline is April 30 of the qualifying year.
Late applications are accepted but may reduce or delay the freeze benefit. File promptly in the calendar year you turn 65.
The school tax freeze is also available to homeowners with a qualifying disability (under Social Security disability definitions), regardless of age. If you receive disability benefits and own a Texas home as a primary residence, you may qualify for the same freeze mechanism without waiting until 65.
Many states offer senior property tax relief, but most are circuit breakers (income-based rebates), partial exemptions, or deferrals that must be repaid at sale. The Texas school tax freeze is structurally different:
To understand why the freeze matters more than the exemption itself, model what happens to school tax over time without vs. with the freeze.
| Year | Appraised Value (5%/yr growth) | School Tax — No Freeze (on $200K taxable base) | School Tax — With Freeze (locked at year 1) | Annual Savings |
|---|---|---|---|---|
| 1 | $400,000 | $2,700 | $2,700 | $0 |
| 3 | $441,000 | $3,294 | $2,700 | $594 |
| 5 | $485,000 | $3,874 | $2,700 | $1,174 |
| 8 | $554,000 | $4,804 | $2,700 | $2,104 |
| 10 | $610,000 | $5,535 | $2,700 | $2,835 |
| 15 | $778,000 | $7,668 | $2,700 | $4,968 |
| 20 | $993,000 | $10,689 | $2,700 | $7,989 |
| Cumulative savings over 20 years | ~$57,000 | |||
Assumes $400K home, 5% annual appraisal growth, 1.35% school tax rate, $200K combined exemption. Actual figures vary by school district and appraisal trajectory. The cumulative savings represent school tax only — county and city taxes not included.
Over 20 years, the school tax freeze saves a Bexar County 65+ homeowner approximately $57,000 on a $400,000 starting home — assuming 5% annual appraisal growth and flat school tax rates. If appraisals grow faster or school tax rates rise, the savings are larger. This is not a marginal benefit. It's structural.
Can I still protest my appraisal if my school tax is frozen?
Yes, and you should. Successfully lowering your appraised value can reduce the county, city, and hospital district portions of your bill (the unfrozen portions). It can also reduce the ceiling amount if the protest occurs in your qualifying year before the freeze is established.
What if I rent out part of my home?
Partial rental of a primary residence can affect the homestead exemption and, by extension, the freeze. The general rule: if you rent out more than 50% of the home or convert it to a non-primary-residence use, you lose the exemption and freeze. Renting a room to a family member or renting short-term occasionally typically doesn't affect it, but consult BCAD directly for your specific situation.
Does the freeze apply if I buy a home that already has a freeze on it from the previous owner?
No. The freeze is personal — it's tied to your age and residency, not the property. When you purchase the home, the previous owner's freeze terminates. You establish a new freeze in your first qualifying year at the property's tax amount that year. If you're already 65 at the time of purchase, the freeze begins with your first tax year at the property.
Can the state legislature eliminate the school tax freeze?
The freeze is now embedded in the Texas Constitution via the Proposition 11 amendment. Eliminating it would require another constitutional amendment passed by the legislature and approved by voters. This is a substantially higher bar than a standard legislative change — it provides more structural permanence than most state tax relief programs.
Does the freeze apply in Kendall County (Boerne/Esperanza)?
Yes — the school tax freeze applies statewide in Texas, including Kendall County school districts. However, the specific exemption amounts (general homestead, over-65 additional) differ between Bexar and Kendall counties, and Kendall County does not have the City of San Antonio municipal exemption. The freeze mechanism exists everywhere in Texas; the underlying exemption base it's freezing is different in each county.