Hays County Property Tax Estimator
2025 rates for every Hays County city, school district and special district, preloaded. Pick your units, enter your value.
Short answer: Hays County's rate is 0.3999%. A $400,000 homestead in San Marcos pays about $6,845.12 a year at a combined 2.0666%.
Build your estimate
| Taxing unit | Rate | Exemption | Taxable value | Tax |
|---|
Hays County example
To match it, pick San Marcos and San Marcos CISD, enter $400,000 and choose homestead: yes.
- Hays County $1,600
- San Marcos $2,606
- San Marcos CISD $2,640
| Unit | Taxable | Rate | Tax |
|---|---|---|---|
| Hays County | $400,000 | 0.3999%$0.3999 per $100 | $1,599.60 |
| San Marcos | $400,000 | 0.6515%$0.6515 per $100 | $2,606.00 |
| San Marcos CISD | $260,000 | 1.0152%$1.0152 per $100 | $2,639.52 |
| Total | 2.0666%$2.0666 per $100 | $6,845.12 |
- Appraisal district: Hays Central Appraisal District (Hays CAD)
- Protest deadline: May 15 (next business day if that falls on a weekend), or 30 days after the notice is mailed — whichever is later (Tax Code §41.44). Check your notice.
Questions
What is the Hays County property tax rate?
Hays County's own 2025 rate is 0.3999% ($0.3999 per $100). Cities add 0.06475% to 0.6515% and school districts 0.858% to 1.1546%, so your total depends on your address.
How much is property tax on a $400,000 home in San Marcos?
About $6,845.12 a year for a homestead, at a combined 2.0666% (Hays County, San Marcos, San Marcos CISD), after the $140,000 school homestead exemption and before any local optional exemptions.
What exemptions does the estimator apply?
Only the state school-district homestead exemption: $140,000, or $200,000 if you are 65+ or disabled. County, city and special-district exemptions vary by unit and are not assumed.
Where do I find my exact taxing units in Hays County?
Look up your property on Hays Central Appraisal District (Hays CAD). Your account lists every unit that taxes it, including MUDs and ESDs.