Enter your travel details to see your full GSA per diem allowance breakdown — lodging, M&IE, and total.
Per diem is a daily allowance for lodging and meals & incidental expenses (M&IE) provided to government, military, and many corporate travelers. The General Services Administration (GSA) sets rates for each location in the US, updated annually.
When you book a hotel under the per diem lodging rate, many agencies let you pocket the difference. This calculator shows your exact allowance so you can maximize savings on every trip.
On your first and last travel days, M&IE is calculated at 75% of the full daily rate. This is the standard GSA rule and is automatically applied in our calculator.