Taxes in San Marcos
Texas has no state personal income tax -- a statewide fact restated briefly here -- and San Marcos's combined sales tax rate is 8.25% (6.25% state, 0.5% Hays County, 1.5% City of San Marcos), the maximum combined rate allowed under Texas law. As the base record already establishes, property tax is where San Marcos residents carry their real state-and-local tax burden, and it runs high even by Texas standards.
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Learn moreNo State Income Tax (Briefly Restated)
Texas is one of a small number of states with no state personal income tax, applying statewide and not specific to San Marcos -- see the Texas state page for the full context. It is a genuine structural advantage when comparing take-home pay for a San Marcos-based job against an equivalent role in an income-tax state.
San Marcos's Combined Sales Tax Rate
The combined sales tax rate in San Marcos is 8.25% as of 2026, per multiple sales-tax rate aggregators (Avalara, SalesTaxHandbook, the City of San Marcos) reviewed August 2026: 6.25% Texas state sales tax, 0.5% Hays County, and 1.5% City of San Marcos. This is the statutory maximum combined rate allowed anywhere in Texas -- the same ceiling Austin sits at, though the local split differs (San Marcos allocates more of its local share to the city itself and less to county/special-district add-ons than Austin's 1% city / 1% special-district split).
Property Taxes: High Even by Texas Standards
As the base San Marcos record establishes, Hays County's median effective property tax rate is cited around 1.73% (Ownwell), well above both the roughly 1.0% Texas median and the roughly 1.0% national median cited by the same source. This is a county-level figure applied across Hays County rather than broken out separately for San Marcos specifically, and it is the direct tradeoff for Texas's lack of a state income tax -- a genuinely high burden that meaningfully offsets the no-income-tax advantage for homeowners here. Confirm your specific parcel's current combined rate against the Hays County Tax Office or appraisal district before budgeting precisely.
No Real Estate Transfer Tax
Texas is one of the states that levies no real estate transfer tax on property sales -- a real, if modest, closing-cost advantage relative to most other states. See the buying-a-home topic page for the fuller closing-cost picture.
Key takeaways
- No Texas state income tax applies statewide, not a San Marcos-specific advantage, but the biggest single driver of overall tax competitiveness here.
- San Marcos's combined sales tax rate is 8.25% (6.25% state + 0.5% Hays County + 1.5% city) -- the maximum combined rate allowed under Texas law, same ceiling as Austin though split differently locally.
- Hays County's median effective property tax rate is cited around 1.73% (Ownwell), well above the roughly 1.0% Texas and national medians -- a real, high offset to the no-income-tax advantage.
- Texas levies no real estate transfer tax on property sales, a real if modest closing-cost advantage versus many other states.
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