San Marcos, TX Sales Tax Rate and Calculator
The combined rate is 8.25% as of October 1, 2026. Enter an amount to see the tax.
Updated October 2026Calculate Sales Tax in San Marcos, TX
Tax Breakdown
Tax Details
San Marcos sales tax rate: 8.25%
The combined sales tax rate in San Marcos, TX is 8.25% as of October 1, 2026: 6.25% state, 0.5% county and 1.5% city. San Marcos has about 67,553 residents.
At 8.25%, a $500 purchase in San Marcos adds $41.25 in tax and a $2,000 one adds $165.00. With a median household income of $51,030 (Census ACS 5-Year 2023), that larger bill equals about 17% of a week's income here.
Among the 8 Texas places covered on this site, San Marcos shares its 8.25% rate with 7 other places. Rates run from 8.25% in San Marcos to 8.25% in Bryan.
Groceries are exempt from sales tax. Rates can change at the start of each quarter. Source: Texas revenue department, read October 13, 2026.
Texas Sales Tax Rates
State Rate
6.25%
San Marcos Local Rate
2%
San Marcos Combined
8.25%
Local rates vary by city, county and special district. State rate source: Texas revenue department, checked October 13, 2026.
Exemptions & Taxable Items
- • Groceries are exempt from sales tax
- • Clothing is subject to sales tax
- • Prescription medicine is generally exempt
Sales Tax Examples in San Marcos
| Purchase Price | Sales Tax | Total Cost |
|---|---|---|
| $25.00 | $2.06 | $27.06 |
| $100.00 | $8.25 | $108.25 |
| $500.00 | $41.25 | $541.25 |
| $1,000.00 | $82.50 | $1,082.50 |
Based on the San Marcos combined rate of 8.25% (October 1, 2026).
Sales Tax FAQ, San Marcos, Texas
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Disclaimer: For informational purposes only. Not tax, legal, or financial advice.