Contra Costa County, CA Calendar
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June 1, 2022 - July 31, 2022
All Day
County Finance Building: Treasurer-Tax Collector's Office
625 Court Street, Suite 100
Martinez, CA 94553
(925) 957-5280
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Business License Renewal Due

Wednesday, June 1, 2022

Business licenses renewal is due June 30 and delinquent after July 31. Afterward, a 25% late-renewal penalty will apply. If July 31 falls on a weekend or holiday, the renewal is not delinquent until 5 p.m. the next business day.

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