Louisiana Per Diem Rates 2025. Federal per diem rates are published each fiscal year on the general services administration website. The irs has issued special per diem rates for the transportation industry for 2025, with the new rates effective october 1, 2024.

The per diem rates shown here for lodging and m&ie are the exact rates set by the gsa for the month of december, 2025. Check out our per diem calculator at the top of the page to find out which rates apply to your business trip in louisiana.