If you signed closing paperwork on a 78746 home this month, or you're staring down a September closing date right now, look closely at the line that says "estimated annual property tax." That number is a placeholder. Not because your lender got sloppy and not because your appraisal is wrong. It's a placeholder because the entity that decides the biggest single piece of a Westlake tax bill, Eanes Independent School District, hasn't voted on its 2026 rate yet.
That isn't a small technicality if you're closing, refinancing, or trying to budget for the bill that lands in your mailbox in October. School district taxes typically make up the largest share of a Texas property tax bill, and in an Eanes ISD address that line is still open while other nearby districts have already locked theirs down for the year. Anyone working from a spring CMA, a listing sheet's tax estimate, or an escrow quote from three months ago is working with a number that was built on last year's rate, because this year's rate doesn't exist yet.
Here's the part that surprises people moving in from higher-tax states or comparing Westlake to other Austin zip codes: even with that uncertainty hanging over the fall, homes in the Eanes ISD footprint already sit near the bottom of the metro's effective tax rate ranking, not the top. Some of the highest home values in Central Texas carry one of the lightest tax burdens as a percentage of that value. The two facts, high appraised values and low effective rates, aren't a contradiction. They're the same mechanism working in your favor, and understanding it changes how you should think about your bill this fall.
The Calendar Behind the Number
Texas doesn't set property taxes with a single vote on a single day. Every taxing entity that touches your address, county, school district, community college, hospital district, and sometimes a city, runs its own certification and adoption process on its own timeline every summer. Some entities move fast. Others take until the legal deadline. For 2026, the pace has been uneven.
| Taxing Entity | Status as of late August 2026 | Why It Matters to a Westlake Bill |
|---|---|---|
| City of Austin | Adopted August 12: $0.579948 per $100, up from $0.524017 the year before, a 10.7 percent jump in the rate itself | Shows how much a single entity's rate can move in one cycle, even one that doesn't apply to most unincorporated Westlake addresses |
| Travis County | Published its no-new-revenue rate ($0.378179) and voter-approval rate ($0.386210) on August 5 | The county's actual adopted rate still needs a commissioners' vote before it's final |
| Leander ISD | Adopted August 17 | A neighboring Hill Country district, already locked for the year |
| Lake Travis ISD | Adopted August 19 | Same story, already final |
| Eanes ISD | Still moving through public hearings | This is the line that carries the most weight on a Westlake bill, and it's the one still open |
| Central Health, Austin Community College | Also pending | Smaller pieces of the total, same open timeline |
Texas law gives most entities until the end of September to finish adopting a rate. Eanes ISD is using that window. Your October bill will reflect whatever comes out of it, not whatever number was floating around in June.
If you want to watch the process directly rather than take a secondhand summary, the City of Austin's own tax rate page lays out exactly how a rate moves from certification to adoption, hearing notices and all. The mechanics are the same for every entity, just on a different calendar.
The Paradox: Highest Values, Lowest Effective Rate
Here's the piece that gets lost in the anxiety about rising appraisals. Eanes ISD's 2025 rate ran about $0.79 per $100 of assessed value, noticeably lower than the rate charged by Austin ISD next door. Because school taxes are the largest line on almost every bill in the state, that gap compounds. Combine a lower school rate with the fact that most established Westlake-area neighborhoods, West Lake Hills, Rollingwood, and Rob Roy among them, typically sit outside any Municipal Utility District, and you get a bill built almost entirely from standard county, school, and hospital district rates with none of the extra MUD layer that can stack $3,000 to $7,500 a year onto homes in some newer subdivisions elsewhere in the metro.
The result, based on comparisons across Austin-area markets, is that Westlake homes already carry one of the lowest effective property tax rates in the region, in the neighborhood of 1.78 percent of assessed value. That's lower than the typical rate inside Austin city limits and lower than most newer suburban developments carrying MUD debt. A high appraised value and a comparatively light rate aren't working against each other. The rate advantage is part of what the address is worth.
None of that means the dollar amount on a Westlake bill is small. A lower rate on a higher value can still produce a large annual payment. It means the rate itself isn't the burden people assume it is when they see a 78746 sale price for the first time.
What Changes If You're Closing This Fall
If you have a closing scheduled before Eanes ISD finalizes its rate, a few things are worth doing now rather than waiting for the October bill to arrive and cause a surprise.
- Ask your lender directly which rate their escrow estimate is built on. Most will use last year's certified rate as a placeholder, which means your first escrow analysis after the bill posts may adjust your monthly payment up or down.
- Confirm your homestead exemption is actually filed, not just submitted somewhere in a stack of closing paperwork. The state's school district homestead exemption rose to $140,000 for the 2025 and 2026 tax years, and it only applies if the paperwork is on file with the county, not just intended.
- If you're buying new construction, plan for a Year 2 increase. New builds are often assessed at a partial value during construction, then jump to full value once the county reappraises a finished home, and Eanes ISD's rate applies to whatever that full value turns out to be.
- If you're selling and quoting an estimated tax figure to a buyer, be clear that the number reflects last year's rate until Eanes ISD adopts a new one. A buyer who finds out later that the number moved will remember who told them it was final.
None of this requires waiting anxiously for October. It requires knowing which number in your paperwork is real right now and which one is still in motion.
Building Your 2027 File While the Ink Is Still Wet
The formal window to protest a 2026 appraisal already closed back in May, so if this year's number surprises you, there's no lever to pull on this year's bill. But there is a lever for next year, and the best time to build it is now, not next April when the appraisal notice arrives and the comparable sales you'd want to use are six months stale.
If you closed recently, or you're watching values move in Rob Roy or anywhere else across 78746, keep a running file of what's actually selling and for how much. County appraisers work from mass data. A well-documented set of recent, truly comparable sales, gathered while the market conditions that produced them are still fresh, is the single strongest piece of evidence in a protest. Waiting until the notice shows up in the mail means reconstructing a case for a market that may have already shifted.
This is also where the difference between a CMA built for a sale and one built for a protest matters. A pricing CMA is trying to answer what a buyer will pay today. A protest file is trying to answer what the county's number should have been on January 1. They use similar data but ask different questions, which is worth understanding whether you're preparing to sell this year or simply keeping your own valuation honest heading into 2027.
Quick Answers
When will I actually know my 2026 Eanes ISD rate? Somewhere before the end of September, based on the district's public hearing schedule. There's no fixed date published yet, which is exactly why anyone closing or budgeting in August and September is working with a placeholder number.
What happens if I close before Eanes ISD adopts its rate? Your closing disclosure and initial escrow setup will use an estimate, typically last year's rate. Once the real bill posts in October, expect your lender to run an escrow analysis and adjust your monthly payment to match the actual number.
Does the higher home value in Westlake mean a higher tax rate too? No. Appraised value and tax rate are separate variables. Eanes ISD's rate runs lower than Austin ISD's, and most established Westlake neighborhoods carry no MUD tax, which is part of why the area's effective rate sits near the bottom of the Austin metro even as home values sit near the top.
If you're weighing a purchase in 78746 this fall, or you're trying to figure out what your current Westlake home is actually worth against a market that keeps moving before the tax picture is even final, that's exactly the kind of number we sit down and work through with clients. You can read more on how a CMA differs from a county appraisal or how buyers are thinking about resale value in 78746 before they even close.
Ready for a clearer picture of where your Westlake home stands, taxes and all? Get your Home Valuation & Westlake Guide from Lux Austin Real Estate, and let's walk through the real numbers together, not the placeholders.
