TX tax rules›Williamson County

Williamson County, TX Sales Tax (2026)

Verified Jun 18, 2026

Combined sales tax up to 8.25% (6.25% TX state + up to 2.00% local) — Round Rock/Georgetown reach the 8.25% cap.

Official source: comptroller.texas.gov →

General legal information, not legal advice — verify important decisions with a licensed professional.

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