Irs Per Diem Meal Rates 2025. The notice is effective for any per diem allowance paid for lodging, meal, and incidental expenses after october 1, 2025, the beginning of the u.s. Taxpayers can use these rates to justify the amount they spend on travel.

These changes are crucial as they directly affect. Gsa establishes the rates that federal agencies use to reimburse their employees for lodging and meals and incidental expenses incurred while on official travel within the continental united states (conus).