In Notice 2017-54, the IRS provides the per-diem rates for taxpayers to use for substantiating the amount of business expenses incurred while traveling away from home starting October 1, 2017. The Notice, which can be accessed by clicking here, sets forth the special transportation industry meal and incidental expenses amount; the rate for the incidental expenses only deduction; and the rates and list of high-cost localities for taxpayers that use the high-low substantiation method.
The information in the notice is effective for per diem allowances for lodging, meal and incidental expenses that are paid to any employee for travel on or after October 1, 2017.