2024 Mileage Rate California. To calculate mileage reimbursement in california, multiply the total number of business miles driven by the irs standard mileage rate for the year. The irs announced a slight increase in the 2024 optional standard mileage rates for business use;
As of 2024, california uses the irs standard mileage rate of $0.67 per mile for business travel. California follows the irs standard mileage rates, with the 2024 rate set at 67 cents per mile.