Irs Per Diem Mileage Rates 2024. Gsa per diem rates 2024 seattle babs marian, the per diem rates shown here for lodging and m&ie are the exact rates set by the gsa for the month of july, 2024. Per diem rates for mileage are set by the irs;

The internal revenue service (irs) establishes standard mileage rates each year to simplify the process of calculating deductible costs of operating an automobile for. The 2024 standard mileage rate is 67 cents per mile, up from 65.5 cents per mile last year.