SAN MARCOS Sales Tax Overview
As of 2026, SAN MARCOS, Texas has a combined sales tax rate of 8.25%. This rate includes the Texas state tax of 6.25% plus applicable county and local taxes.
This rate applies to most taxable goods and services purchased within the 78667 zip code area. Some items such as groceries, prescription drugs, and clothing may be exempt depending on Texas state law.
SAN MARCOS Tax Examples
* Based on rate of 8.25%. Verify with your exact zip code.
SAN MARCOS Zip Codes & Tax Rates
| Zip Code | Combined |
|---|---|
| 78667 | 8.25% |
Frequently Asked Questions
What is the sales tax rate in SAN MARCOS, TX?
The sales tax rate in SAN MARCOS, TX is 8.25% as of 2026. This includes the 6.25% Texas state tax plus any county and city taxes.
How many zip codes are in SAN MARCOS, TX?
SAN MARCOS, TX has 1 zip code in our database: 78667.
How much is sales tax on a $100 purchase in SAN MARCOS?
On a $100 purchase in SAN MARCOS, TX you would pay approximately $8.25 in sales tax at the average rate of 8.25%, for a total of $108.25.
Is SAN MARCOS's sales tax rate higher than the Texas average?
Use our calculator to compare SAN MARCOS's rate of 8.25% against other cities in Texas. Visit the Texas state page for the statewide average.