The statewide tax rate is 7.25%. In most areas of California, local jurisdictions have added district taxes that increase the tax owed by a seller. Those district tax rates range from 0.10% to 1.00%. Some areas may have more than one district tax in effect. 2020 sales tax rates differ by state, but sales tax bases also impact how much revenue is collected and how it affects the economy. 2020 sales tax rates. Per capita sales in border counties in sales tax-free New Hampshire have tripled since the late 1950s, while per capita sales in border counties in Vermont have remained stagnant. California – New Sales and Use Tax Rates Operative January 1, 2020 Posted on November 14, 2019 by Donna Zaldivar — No Comments ↓ The City of Arcadia’s (located in Los Angeles County) tax rate will change from 9.5% to 10.25% on January 1, 2020.