Castro County
•
Texas (TX)
4 ZIP Code
Castro County, TX Sales Tax Rates 2026
2026 sales tax rate guide for Castro County, TX. Average combined tax rate is 7.88% with local jurisdictions ranging up to 8.25%.
Average Combined Rate
7.88%
Estimated Tax Range: 6.75% - 8.25%
⚡ Direct Tax Answer & Key Takeaway
As of 2026, the local county sales tax rate in Castro County (Texas) is 0.50%. Combined sales tax rates across cities in this county range from 6.75% to 8.25% (averaging 7.88%).
County Tax
0.50%
Average Combined Rate
7.88%
Max Local Rate
8.25%
Indexed Cities
4
Cities & Towns in Castro County
| City | Combined Sales Tax Rate | Action |
|---|---|---|
| Dimmitt | 8.25% | View Tax Rates → |
| Hart | 8.25% | View Tax Rates → |
| Nazareth | 8.25% | View Tax Rates → |
| Summerfield | 6.75% | View Tax Rates → |
📋 State Tax Rules & Compliance Guide
Sourcing Rule:
Origin-based for in-state sellers, Destination-based for remote sellers
Groceries & Food:
Exempt (0%)
Clothing & Apparel:
Taxable (Tax-free weekend annual exception)
SaaS & Digital Goods:
Taxable (80% of value taxable, 20% exempt as data processing)
Economic Nexus Threshold:
$500,000 in preceding 12 calendar months
Official Tax Authority:
Texas Comptroller of Public Accounts ↗
Interactive Sales Tax Calculator
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Address-Specific Rates
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Rates current for 2026
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ZIP Codes in Castro County
❓ Frequently Asked Questions
Key questions and answers regarding sales tax rates, exemptions, and compliance.