California Sales Tax 2025 Calculator App. To determine the 2025 ca sales tax rate, start with the statewide sales tax rate of 7.25%. Use it for free here, or contact us for more information.
You can use our california sales tax calculator to look up sales tax rates in california by address / zip code. To calculate the california sales tax rate, simply multiply the cost of the item youโre selling by the corresponding sales tax rate.