Hays County is the Austin-San Antonio I-35 corridor’s fastest-growing county — and its property tax structure is the most complex and most consequential of any county in this guide series, with city-specific rate variations that can represent thousands of dollars annually on the same home value and MUD district overlays that add meaningfully to base rates in many newer master-planned developments. Most Hays County homeowners pay a combined effective rate of 1.5% to 2.4% of assessed value, depending on their specific taxing entities — school district, MUD, city, and county combinations. Hays County’s combined rate is among the highest of any county in the Austin-San Antonio corridor — significantly above Comal County’s ~1.21% and Guadalupe County’s ~1.69%, and comparable to or above Bexar County in-city rates in some Kyle and San Marcos addresses. For buyers evaluating 6 Creeks in Kyle, Plum Creek, San Marcos communities, or anywhere along the I-35 Hays County corridor, understanding the specific tax stack before making an offer is the most important financial due diligence step of the entire purchase process.
Brock Bremmer | Real Estate Agent | eXp Realty | San Antonio Metro Area
I-35 Corridor and Hays County Specialist
Also see: 6 Creeks Kyle Buyer’s Guide | Living in San Marcos | San Marcos vs New Braunfels
The Hays County Taxing Entity Stack — Why It’s Complex
Hays County’s rapid growth has produced a layered taxing entity structure that differs significantly by address:
- Hays County base rate: The county-wide levy applying to all properties. The county rate rose 14.3% in 2025 — verify current adopted rate at hayscad.com
- School district: Multiple districts serve Hays County — Hays CISD (Kyle, Buda, and surrounding areas), San Marcos CISD, Dripping Springs ISD, Wimberley ISD, and Austin ISD (small eastern border area). Hays CISD’s I&S rate of $0.4877 per $100 reflects significant bond debt from rapid district growth. Wimberley ISD homeowners pay roughly $647 less per year in school taxes than Hays CISD homeowners on the same home value
- City levy: City of Kyle, City of Buda, City of San Marcos, City of Wimberley, and others. Kyle’s 26.9% rate increase was the largest among Hays County cities in 2025, driven by infrastructure needs from rapid population growth. Buda’s rate remains less than half of San Marcos’s — the lowest city rate in the county. City/non-city distinction is highly consequential in Hays County
- MUD district assessments: Many newer Hays County subdivisions are served by MUDs that levy additional taxes on top of city, county, and school district rates — adding $0.20 to $0.50+ per $100 to the total rate. This is the most commonly overlooked variable in Hays County new construction — a MUD assessment can add 0.3%–0.8% to the effective rate, representing $1,050–$2,800 annually on a $350,000 home
Rate by City — The Hays County Tax Landscape
Effective rates in Hays County generally run between 1.85% and 2.20% — but many newer Hays County subdivisions include MUD districts that add to the base rate.
- Kyle (Hays CISD, city limits): Kyle’s total property tax rate is approximately 2.15% for Kyle homeowners. Kyle’s city rate increase of 26.9% was the largest among Hays County cities in 2025 — if you’re buying new construction in Kyle, you need the MUD-inclusive rate for your specific development, not just the city average. MUD-bearing Kyle developments can push effective rates to 2.3%–2.6%+
- Buda (Hays CISD, city limits): Buda’s rate remains less than half of San Marcos’s — the lowest city rate in the county. Buda consistently produces the most buyer-friendly city rate in Hays County — a meaningful financial advantage over Kyle for buyers whose work location doesn’t require Kyle proximity
- San Marcos (San Marcos CISD, city limits): San Marcos raised its city rate 8% in 2025. San Marcos CISD also carries its own levy — the combined effective rate in San Marcos typically runs 2.0%–2.3%. San Marcos CISD’s ~4/10 GreatSchools rating is the most significant demand variable in this sub-market
- Dripping Springs (Dripping Springs ISD): Dripping Springs ISD has held its I&S rate at $0.35 since 2016 — producing a more stable school district levy than Hays CISD’s growing bond debt. Combined rate typically runs 1.85%–2.1%. Dripping Springs ISD is highly rated and carries a premium in the western Hays County market
- Wimberley (Wimberley ISD): Wimberley ISD homeowners pay roughly $647 less per year in school taxes on the same home value than Hays CISD. Wimberley ISD’s lower levy reflects the district’s smaller size — combined rates typically 1.75%–2.0%. Popular with remote workers and Hill Country lifestyle buyers
- Unincorporated Hays County: County base + school district only — no city levy. Acreage and rural properties outside city limits avoid the city rate premium. Some unincorporated areas still carry MUD assessments if within a utility district boundary
The MUD District Warning — Hays County’s Most Overlooked Tax Variable
MUD districts are the most consequential and most commonly overlooked variable in Hays County new construction tax planning:
- What a MUD is: A Municipal Utility District is a special taxing district that funds water, wastewater, drainage, and sometimes road infrastructure for specific development areas. The developer creates the MUD, issues bonds to fund infrastructure, and the MUD levies a tax on all properties within its boundary to repay those bonds
- How much they add: MUD districts add $0.20 to $0.50+ per $100 of assessed value to the total rate — representing 0.2%–0.5%+ on top of the base combined rate. On a $400,000 home, a 0.4% MUD adds $1,600 annually to the tax bill
- How long they last: MUD bonds typically run 20–30 years. Newer developments carry the full MUD rate; older developments may have partially retired the bonds, reducing the MUD rate over time. Ask what the current MUD rate is and when it is projected to be retired
- 6 Creeks and Hays County master-planned communities: Some phases within 6 Creeks and other Kyle master-planned communities carry MUD assessments — the effective rate for MUD-bearing lots is meaningfully higher than the city-only rate. Kyle’s 26.9% city rate increase alone adds roughly $305 to the average homeowner’s annual bill — layer a MUD on top of that increase and the year-over-year tax increase on Kyle new construction can be substantial
- How to identify your MUD: Look up your specific address at hayscad.com — all taxing entities including MUD districts appear in the property’s entity list. If you see a MUD entity, call that MUD’s administration office to get the current rate and bond retirement timeline
Homestead Exemptions in Hays County
- Standard state homestead exemption: $140,000 reduction in school district taxable value (2026). File Form 50-114 at hayscad.com — deadline April 30, late applications through January 31 of following year. The 10% annual assessment cap applies immediately upon filing
- 10% cap protection: In a market where Kyle’s assessed values have risen sharply, the 10% homestead cap is one of the most financially valuable protections available to Hays County homeowners. File immediately after closing — every year of delay exposes you to uncapped assessment increases
- Over-65 exemptions: Additional exemptions and potential school district tax freeze available for homeowners 65 and older — verify specific amounts with your school district and hayscad.com
- Disabled veteran exemptions: Graduated 10%–100% VA disability exemptions — 100% disability exempts primary residence statewide
- Protest deadline: May 15 annually. Over 80% of all residential protests in Texas result in a lower value — in a fast-appreciation market like Kyle, annual protest is financially worthwhile
Annual Tax Bill Examples — Hays County
| Location | Home value | Est. effective rate | Annual bill (no exemption) | Annual bill (homestead est.) |
| Kyle (Hays CISD, city, no MUD) | $420,000 | ~2.15% | ~$9,030 | ~$6,300 (est.) |
| Kyle (Hays CISD, city, with MUD 0.4%) | $420,000 | ~2.55% | ~$10,710 | ~$7,980 (est.) |
| Buda (Hays CISD, city) | $380,000 | ~1.95% | ~$7,410 | ~$5,100 (est.) |
| San Marcos (SMCISD, city) | $290,000 | ~2.15% | ~$6,235 | ~$4,100 (est.) |
| Wimberley (Wimberley ISD) | $450,000 | ~1.85% | ~$8,325 | ~$6,100 (est.) |
Estimates — MUD assessments vary by specific development. Verify at hayscad.com for your address.
Hays County vs Comal County — The I-35 Corridor Tax Comparison
For buyers comparing Hays County (Kyle, Buda) against Comal County (New Braunfels, Bulverde), the tax rate difference is the most financially significant variable in the comparison:
- Kyle at 2.15% (no MUD) vs New Braunfels at ~1.21%: On a $400,000 home — Kyle produces $8,600 annually versus New Braunfels’s $4,840 annually. Annual difference of $3,760 ($313/month) at the same purchase price
- Kyle at 2.55% (with MUD) vs New Braunfels at ~1.21%: On a $400,000 home — Kyle MUD-bearing produces $10,200 annually versus $4,840. Annual difference of $5,360 ($447/month)
- What justifies the Hays County premium: Austin employer proximity (20–22 miles vs 45+ miles for NB), I-35 access to both Austin and SA, and Hays CISD schools for buyers where district preference aligns with HCISD. For remote workers or SA-primary employees, the Comal County tax advantage is a strong argument for New Braunfels over Kyle
Frequently Asked Questions: Hays County Property Taxes
What is the property tax rate in Hays County?
Most Hays County homeowners pay a combined effective rate of 1.5% to 2.4%, depending on specific taxing entities. Kyle homeowners pay approximately 2.15% combined. MUD-bearing developments add 0.2%–0.5%+ to that base. Buda’s city rate is the lowest in the county. Verify at hayscad.com for your specific address — county averages are not reliable for individual property budgeting in a county this diverse.
What is a MUD and do I have one at my Hays County property?
Many newer Hays County subdivisions are served by MUDs that add $0.20 to $0.50+ per $100 to the total rate — representing 0.2%–0.5%+ of additional effective tax. Look up your address at hayscad.com — all taxing entities appear in the property record. If a MUD appears, contact that MUD’s administration office for current rate and bond retirement timeline. MUD-bearing lots in Kyle can push effective rates to 2.3%–2.6%+.
How do I file a homestead exemption in Hays County?
File Form 50-114 at hayscad.com. Must own and occupy as primary residence as of January 1. Deadline April 30, late applications through January 31 of following year. Reduces school district taxable value by $140,000 (2026) and applies 10% annual assessment cap. In a rapidly appreciating market like Kyle, the 10% cap is among the homestead exemption’s most valuable benefits — file immediately after closing.
Questions About Your Hays County Tax Situation?
Brock Bremmer with eXp Realty verifies the complete Hays County tax entity stack for every I-35 corridor purchase — including MUD district identification, city rate confirmation, and school district assignment at hayscad.com before any offer is submitted.
- 📞 Call or text: 210-501-5088
- 📧 Email: [email protected]
- 📅 Schedule a free consultation
Also see: Property Taxes in New Braunfels | Property Taxes in San Antonio | 6 Creeks Kyle Guide | San Marcos vs New Braunfels