California Sales Tax Calculator by ZIP Code
Estimate California sales tax from your five-digit ZIP code using an illustrative combined rate by ZIP prefix. Override the rate when you have the exact local figure.
Regional Rule Context
United States Rates and Rules
Tax Rates
Exemptions
- -Unprepared grocery food
- -Prescription medicines
Enter Values
Leave at 0 to use ZIP prefix estimate
Result
Enter values above and click Calculate to see your result.
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California sales tax by ZIP code calculator for 2026. Enter your 5-digit ZIP to find the approximate combined rate. CA has the highest state base (7.25%) with district additions up to 10.75%. ZIP prefixes map to rate zones: 900xx (LA) ~10.25%, 941xx (SF) ~8.625%, 921xx (SD) ~7.75%. Override with your exact rate from CDTFA for precision.
Disclaimer: This calculator uses publicly available rules effective as of Jan 1, 2025 (version 1.0). Results are for informational purposes only. Always verify with official sources or a qualified professional. Last reviewed: Mar 1, 2026.
Formula
The tool maps the first three digits of your ZIP to a typical combined state and local rate for planning. You can replace the rate with your real checkout rate.
United States FAQs
How does ZIP code affect CA sales tax?
Each ZIP maps to a specific tax district combination. District taxes (county, city, transit, special purpose) vary by location. Two ZIP codes in the same city may have different rates if they fall in different special districts.
Why does my ZIP rate differ from the city rate?
Some areas have special tax districts (Mello-Roos, transit, hospital) that only apply to specific ZIP codes within a city. The CDTFA website has the definitive rate lookup by address.
What is the highest CA ZIP code rate?
Some ZIPs in LA County and Alameda County reach 10.75% combined. The lowest possible is the 7.25% base in areas with zero district additions.
Is this the same rate used for online orders?
Online orders use the delivery address rate. If you ship to a 10.25% ZIP, that rate applies regardless of where the seller is located.
How often do ZIP-level rates change?
Quarterly. New voter-approved district taxes take effect on January 1, April 1, July 1, or October 1. CDTFA publishes updated rate files each quarter.
Can I use this California Sales Tax Calculator by ZIP Code on my own web page?
You can. Look for the "Embed" button near the top of this calculator. It lets you pick a size, border style, and color palette, then gives you an iframe tag to paste into any webpage. The widget is responsive, loads fast, and costs nothing. More details at calculory.com/services/embed-calculators.
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