Texas hands homeowners 65 and older the most generous senior tax toolkit of any no-income-tax state: $200,000 of value shielded from school taxes, a permanent dollar ceiling on the school portion of the bill, optional local freezes in some cities, and a full deferral option of last resort. It also leaves 35–45% of a typical bill — and 100% of every special district levy — completely unprotected. Most buyers learn the difference after closing. You are going to learn it now, with the actual dollar math at three DFW communities.
Every Texas homeowner’s primary residence gets $140,000 of value exempted from school district taxation — raised from $100,000 by Proposition 13 in November 2025, effective with the 2026 tax year. School district only: it does nothing to city, county, or special district lines.
Turn 65 (or qualify as disabled) and an additional $60,000 comes off the school-taxable value — raised from $10,000 by SB 2 in 2023. Combined with the homestead exemption: $200,000 of your home’s value pays no school district tax. Because school taxes are 55–65% of a typical DFW bill, this is the single biggest lever in the box.
The year you turn 65, the dollar amount of your school district taxes is capped at that year’s level, permanently. Appraisal doubles? The school line cannot exceed the ceiling (it can go down if rates fall; it cannot go up except for significant home improvements you add). This is the protection people mean when they say "my taxes are frozen" — and the most misunderstood, because it is the only statewide freeze, and it touches only the school line.
Move within Texas and the ceiling travels with you as a percentage: if your frozen amount was 40% of what your old school taxes would have been without the ceiling, your new home’s school taxes start at 40% of its would-be bill. Long-frozen downsizers carry startling discounts into new purchases — a fact worth real money in negotiation planning and almost never mentioned by listing agents.
Cities, counties, and college districts may adopt their own senior exemptions (commonly $5K–$50K) and may adopt their own tax ceilings — most DFW cities have not. Mansfield has: a city-level over-65 freeze plus a $50,000 city senior exemption, which is why both Mansfield Laderas get more of their bill frozen than nearly any address in the metro. When comparing communities, ask one question per taxing entity: does it offer a senior exemption, and has it adopted the ceiling?
Any over-65 homeowner can defer ALL property taxes on their homestead, indefinitely, at 5% annual interest. The deferred amount becomes a lien, due when the home sells or the estate settles. It is not a discount — it is a loan from the taxing units secured by your house — but as a tool for staying in a home through a cash-flow crisis, it exists, it is legal, and surprisingly few Texans know it.
Representative homes at three communities we cover in depth, using published rates and the 2026 exemption levels. Round numbers, before any optional local exemptions — your appraisal district’s figures govern.
| Robson Ranch (Denton) | Frisco Lakes (west Frisco) | Heritage Ranch (Fairview) | |
|---|---|---|---|
| Representative value | $425,000 | $525,000 | $500,000 |
| School-taxable value after $200K shield | $225,000 (53% of value exempt) | $325,000 (38% exempt) | $300,000 (40% exempt) |
| Approx. school tax at ~$1.10–$1.20/$100 | ~$2,500–$2,700, then frozen | ~$3,600–$3,900, then frozen | ~$3,300–$3,600, then frozen |
| Unfrozen remainder (city, county, college) | ~$2,800–$3,400/yr and floating | ~$3,600–$4,300/yr and floating | ~$3,200–$3,900/yr and floating |
| The headline | Over half the bill locks; Denton’s missing hospital district keeps the floating half modest | The freeze does its job; west Frisco appreciation works the unfrozen 45% hard | Favorable mix — low county rate under a school-dominated bill the toolkit fully attacks |
Pattern worth internalizing: the cheaper the home, the larger the share the flat $200K shield erases — 53% at Robson’s price point versus 31% on a $650K premium-corridor build. In Texas, senior tax relief is regressive in your favor.
MUD, MMD, PID, FWSD — whatever the acronym, the rule is identical: special district taxes are not school taxes. The $200K shield does not reduce them. The ceiling does not cap them. They ride your appraisal upward every year, forever, until the district’s bonds retire.
The dollar stakes in this market: Del Webb at Trinity Falls carries MUD levies near $1.00 per $100 — roughly $5,000 a year on a $500K home, every dollar of it outside the freeze. Elements at Viridian’s MMD pushes its published combined rate to ~$2.46 on top of full city taxes. A buyer who chose either community believing "my taxes freeze at 65" has protected the smaller half of the bill.
The defense is one page of paper: the lot’s taxing entity list from the appraisal district, requested before contract. Every community page on this site states what we found; the entity list confirms it for your exact lot.
Full district mechanics with worked comparisons: the Trinity Falls MUD breakdown and the Viridian MMD story.
One: exemptions are filed with the appraisal district that covers your home — and county lines do not follow city names, so a Frisco Lakes owner files with Denton CAD, not Collin. Two: the over-65 exemption applies effective January 1 of the year you turn 65, and you can file once you qualify — late filings can generally be applied retroactively up to two years, so missed money is often recoverable. Three: the ceiling is automatic with the exemption, but the transfer is not — moving requires requesting a tax ceiling certificate from your old district. Four: surviving spouses 55 or older generally retain the deceased spouse’s ceiling and exemption on the same home — a protection worth confirming in estate planning. Five: home improvements that add value (the casita, the pool) raise the ceiling by the improvement’s tax; ordinary maintenance does not. When in doubt, ask the appraisal district in writing — and keep the answer.
Collin County tax guide · Denton County tax guide · Tarrant County tax guide · all DFW communities
Exemption math, ceiling transfers, and the entity list on any lot in this market — from an agent who does this weekly, not annually.