Every spring, envelopes from the Williamson Central Appraisal District start landing in Liberty Hill mailboxes. This year the district sent out 285,118 of them across the county, mailed the week of March 31. Most homeowners open the notice, scan down to the rate, see it went down again, and set the paper aside. That instinct is exactly backwards, and it costs people money.
Here's what the rate line doesn't tell you: Liberty Hill ISD's proposed tax rate for the 2026-27 school year is $1.2298 per $100 of value, a decrease from the current year driven by a state-mandated compression of the district's maintenance and operations rate. On paper, that reads like relief. But because Williamson County appraised values have climbed so fast, the district's own truth-in-taxation calculation shows the median homestead's school tax bill is still projected to rise by roughly $205 a year, about $17 a month, even after the rate drops. The rate fell. The bill didn't.
That gap between what the rate line says and what the bill actually does is the thing worth understanding before you write an offer in Liberty Hill, and it plays out in more places than just the school district.
The math nobody circles on the notice
Rate compression happens because Texas law forces school districts to lower their maintenance and operations rate when property values rise fast enough. Liberty Hill ISD has hit that trigger repeatedly because it's one of the fastest-growing districts in the state. Williamson County's Chief Appraiser told commissioners in June that the total market value of property across the county reached $188.91 billion this year, a 76 percent jump over five years. When the denominator grows that much, the rate has to shrink just to raise the same revenue, let alone more.
So a falling rate isn't a sign the district is cutting costs. It's often a sign values are rising fast enough that the state requires the rate to bend. Superintendent Travis Motal framed the district's position plainly when the 2026-27 budget update went to the board on August 3, 2026:
"This proposed budget reflects our commitment to being responsible stewards of our community's investment while continuing to meet the needs of one of the fastest-growing school districts in Texas."
That budget also leans on a 2025 voter-approved tax ratification election. The district's rate had been $1.17 per $100 for 2024-25, and voters approved raising it to $1.24 to offset roughly $8 million in prior-year cuts and a $2 million deficit. The rate that's compressing now is compressing from a base that was raised by ballot just months earlier. None of that history shows up in a single line on a single year's notice.
Same community, five different tax years
Santa Rita Ranch, the master-planned community that spans the Liberty Hill and Georgetown line, makes the pattern easy to see because its combined rate has been published tax year over tax year. Read across five years and the trend is a steady decline, even as home values in the community kept climbing:
| Tax Year | Combined Rate |
|---|---|
| 2021 | 2.7048% |
| 2022 | 2.6373% |
| 2023 | 2.2571% |
| 2024 | 2.3793% |
| 2025 | 2.2171% |
A buyer comparing those five numbers might reasonably conclude that owning in Santa Rita Ranch has gotten cheaper every year. It hasn't. The rate has fallen roughly 18 percent from 2021 to 2025, over almost exactly the same stretch in which Williamson County's overall appraised value climbed 76 percent, from 2021 through 2026. The dollar amount on the bill is a product of both numbers multiplied together, and only one of them is shrinking.
One development, two school districts
There's a second layer to Santa Rita Ranch that catches buyers who assume "the community" means one tax profile. Sections of the neighborhood zoned Homestead and Saddleback fall under Liberty Hill ISD. The Tierra Rosa section, in the same community, is zoned to Georgetown ISD instead. Two households can buy homes a few streets apart, at similar price points, inside the same amenity system and HOA, and land on different school district tax rates because of which section they closed on.
This isn't unique to Santa Rita Ranch. It's a structural feature of how north Austin's newer master-planned communities got built, often straddling city and district lines because the land parcel came together before the political boundaries did. The lesson for a buyer isn't to avoid these communities. It's to ask which section, and which taxing entities attach to that specific lot, before assuming the marketing name tells you the tax story.
What the MUD line is actually funding
Municipal Utility Districts are the other piece buyers underestimate. When a developer builds in an area without existing city water, sewer, and drainage infrastructure, a MUD is formed to issue bonds and pay for that infrastructure, and the MUD tax on your bill is how those bonds get repaid. In new sections of Liberty Hill, that MUD line can represent a meaningful share of the total combined rate, sitting alongside the county, the ISD, and any emergency services or farm-to-market road district that also touches the parcel.
Texas law recognizes that these charges aren't obvious from a listing price alone. Since September 1, 2021, sellers of property inside a Public Improvement District have been required to deliver a formal notice disclosing that obligation to the buyer before a contract is signed, a rule Williamson County spells out on its own Public Improvement Districts page. MUD obligations carry a similar disclosure expectation. The paperwork exists specifically because the sale price and the tax bill can tell two very different stories, and the law wants buyers to see both before they're committed.
Reading your own notice instead of someone else's average
None of this means Liberty Hill is a bad tax environment relative to its neighbors. It means the county-wide or city-wide average you see in a market report is not your number. Your number depends on your section, your ISD, your MUD, and whether your exemptions are filed correctly. The appraisal district mails assessment notices every spring, and homeowners typically have until May 15, or 30 days after the notice arrives, whichever is later, to file a protest with the Williamson Central Appraisal District if the appraised value looks out of line with comparable homes nearby. That window closes fast, and it only matters if you actually open the envelope and check the value, not just the rate.
For buyers still shopping, the practical move is simple: before you write an offer, ask which specific taxing entities attach to that address, not just the school district's name on the listing. A five-minute look at the Williamson Central Appraisal District's property search will show every layer stacked on a specific parcel, which is the only way to know what you're actually signing up to pay.
FAQ
Does a falling MUD or ISD rate mean my property is being taxed less overall? Not necessarily. Your total bill is the rate multiplied by your home's appraised value. If the appraisal district raises your home's value faster than the rate falls, your bill can still increase, which is exactly what Liberty Hill ISD's own 2026-27 projections show for the median homestead.
If two homes in the same community have different MUD or ISD rates, does that mean one is a bad buy? Not automatically. It means the two homes carry different ongoing costs that should factor into your comparison the same way HOA dues or a homeowners insurance quote would. The right approach is comparing total carrying cost per home, not assuming a shared community name means shared taxes.
Do MUD taxes ever go away? MUD taxes are tied to the district's outstanding bonds. In theory, a MUD can retire its debt and reduce or eliminate its tax over time. In practice, most Central Texas MUDs continue for years as the district keeps building and financing new infrastructure, so buyers should treat the current rate as durable rather than temporary.
Reading a tax notice takes five minutes. Understanding what's actually driving the number underneath it is the kind of local detail that changes how you compare a home in Liberty Hill to one in Leander or Georgetown. If you're weighing that decision, Ealy & Company can walk through the specific taxing entities attached to any address you're considering. Inspire your next chapter. Schedule a consultation.
