Local Taxes & Fees in Contra Costa County, CA (2026)
1 county-level rule, plus city-specific rules for 2 cities in Contra Costa County, California.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Contra Costa County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Business Tax Classification
Every business operating in unincorporated Contra Costa County splits into two license classes: Class A general businesses pay a $100 flat fee plus $10 per full-time-equivalent employee beyond the first, while Class B amusements and itinerant businesses pay $100 per day of operation.
Contra Costa County Business License Tax Classes
Some RestrictionsContra Costa County Ordinance Code § 64-14.802
Class A: All businesses not defined as amusements or itinerant businesses. Flat fee ..... $100 per business entity Plus ..... $ 10 per each full time equivalent employee over one Class B: Amusements and itinerant businesses. Flat fee ..... $100 per day
Local Taxes & Fees by City in Contra Costa County
2 cities in Contra Costa County have their own local taxes & fees rules. Each link goes to that city's dedicated page with code citations.
All Contra Costa County ordinances
See every category we cover for Contra Costa County: parking, noise, fences, fires, animals, pools, and more.
Contra Costa County Ordinance Hub →