A buyer under contract on a resale in Santa Rita Ranch pulls the title company's preliminary numbers a few days into the option period and finds a total tax rate that runs noticeably different from what the builder's model home sheet quoted back when the section first broke ground. Nothing went wrong. The rate on that original sheet was never wrong so much as it was frozen at a moment in time, and Santa Rita Ranch has kept moving since.
This is the part of buying or selling in a master-planned community that the list price never carries. Santa Rita Ranch spans eight neighborhoods and multiple villages under one community name, and the combined tax and HOA structure changes by section in ways that don't show up until someone actually pulls the current numbers for a specific lot.
What's actually stacked on top of the price
Every home in Santa Rita Ranch carries more than a county and school district tax line. Because the community was built on land that had no city utility service when development began, a Municipal Utility District was formed to issue bonds and fund the water, sewer, drainage, and often the roads that made the subdivision possible. Homeowners repay those bonds through the MUD tax, which shows up as its own line on the county bill alongside county, school, and any city assessment.
Santa Rita Ranch's own community FAQ puts the combined rate, including county, municipal, and MUD taxes, at approximately 2.5% to 3.1% of assessed value depending on section. That range is wide enough to matter. On a $500,000 home, the difference between 2.5% and 3.1% is roughly $3,000 a year, which is a real number to be off by when a buyer is qualifying for a loan or a seller is pricing a listing against expected carrying costs.
MUD taxes don't run forever. They last until the district's bonds are repaid, at which point the rate typically decreases or is eliminated. That means the rate quoted for a section built five years ago is not necessarily the rate that will apply to a resale in that same section today, and it's part of why relying on an old number sheet is a real risk rather than a rounding error.
Two sources, two ranges, and why that gap matters
Santa Rita Ranch's developer materials quote that 2.5% to 3.1% range. A separate review of the actual 2025 adopted rates, the most recent full tax year and the one that produced the bills due January 31, 2026, found effective rates closer to 2.22% to 2.58% depending on the specific neighborhood inside the community. That's a meaningfully tighter and lower band than the developer's own quote.
The gap isn't necessarily a contradiction. Builder and developer information sheets often reflect a section's original quoted rate, or a rate captured before improvements were added to the tax roll, rather than the rate currently in effect. Model home sales offices are also working from whatever sheet was printed for that phase of construction, which may or may not have been updated since.
The practical takeaway is that neither number should be treated as the final word for a specific address. The only rate that counts is the current adopted rate for that section and that lot, and it's verifiable directly through the Williamson County Appraisal District, which lists every taxing entity and rate tied to a parcel by address.
That verification matters more right now than it will in a few months. Taxing entities adopt their new rates each September and October, which means the 2026 rates are being finalized during this exact window. Anyone closing on a Santa Rita Ranch home this fall or winter should ask for the freshly adopted rate rather than a number pulled from last year's bill or an older builder sheet, since both could already be out of date by the time keys change hands.
The HOA layer changes by village, not just by section
Tax rate isn't the only line that varies inside Santa Rita Ranch. The community's HOA structure runs on a master assessment plus a village-specific overlay, and the dues are not the same across the community. According to the Santa Rita Ranch FAQ, current monthly assessments run as follows:
| Village | Monthly Assessment |
|---|---|
| Master (community-wide) | $116.00 |
| Regency | $195.00 |
| Mirabeau | $159.00 + Master |
| Augustine | $183.00 + Master |
| Ventana | $198.00 + Master |
These fees are managed through Goodwin & Co and typically cover maintenance of common areas and amenities, community events and programming, resident access to pools, parks, and trails, and security patrol in certain areas.
The spread between Mirabeau's combined $275 a month and Ventana's combined $314 a month is not large in isolation, but stacked on top of a tax rate that can already vary by half a point of assessed value, it means two homes priced identically on paper can carry genuinely different total monthly obligations depending purely on which village they sit in. That's not a story about one village being better than another. It's a story about the fact that "Santa Rita Ranch" on a listing sheet is really shorthand for several distinct fee structures, and the village name matters as much as the square footage when a buyer is running real numbers.
The PID line is negotiable, if you know to ask
Some sections layer a Public Improvement District assessment on top of the MUD tax. Unlike the MUD, which is generally treated as an ad valorem property tax, the capital portion of a PID assessment is not, which is a distinction worth raising with a tax professional rather than assuming either way.
What matters more at the negotiating table is that a PID balance can be paid off in a lump sum at any point, and that payoff is something both sides of a transaction can actually work with. A buyer can request a payoff quote from the PID administrator during the option period and negotiate it the same way they'd negotiate a repair item found on an inspection report. A seller can request that same payoff quote before listing and decide in advance whether clearing the balance is part of the pricing strategy or something left for the buyer to assume.
Treating the PID line as fixed and non-negotiable is the more common mistake. It behaves more like a repair credit than like a tax rate, and buyers and sellers who ask about it early tend to have more room to work with than those who discover it during underwriting.
What to actually pull before writing or accepting an offer
A few concrete steps cover most of what matters here.
For buyers, pull the property directly on the Williamson County Appraisal District portal by address, not by section name, and confirm the current adopted rate rather than relying on a builder sheet or a prior year's bill. If the listing sits in a PID, request a payoff quote during the option period and treat it as part of the negotiation.
For sellers, the same MUD notice form the state requires be delivered to a buyer before a sales contract is signed is worth reviewing before the home ever goes on the market. Knowing the current numbers ahead of time means pricing the home against reality rather than against whatever figure last appeared on a search portal.
For anyone buying resale specifically, the HOA resale certificate can be ordered directly through Goodwin & Co, and it will show the current dues, any special assessments, and the specific village overlay that applies to that address. That single document answers most of what a builder's original sales sheet can't.
None of this changes whether Santa Rita Ranch is a reasonable place to buy. It changes whether the monthly number a buyer or seller is working from is the one that will actually appear on the first tax bill after closing.
If you're comparing homes across Santa Rita Ranch's villages and want the current tax and HOA numbers pulled for a specific address before you write an offer or set a list price, The Niño Team can walk through the section-by-section math with you.
