Texas Per Diem Rates 2025. Typically, gsa calculates per diem rates based on the average daily rate (adr) data from str/costar from the previous fiscal year from selected hotel properties, less five percent. Mileage reimbursement rates reimbursement rates for the use of your own vehicle while on official.

Federal per diem rates consist of a maximum lodging allowance component and a meals and incidental expenses (m&ie) component. State travel expense reimbursement is not a per diem.