Per Diem and mileage included in box 1 of W-2
Ok, so I travel for work and I was paid per diem and mileage reimbursement. When my w-2 was generated, the company lumped all the per diem, mileage, and income into one sum and reported that in box 1 on my W-2. I was under the impression that the per diem and mileage were tax free income. So, how do I go about reducing my taxable income by the per diem and mileage amount? I looked at form 2106 and I can see how the per diem would work but only at 50%. I guess I am just confused. In the past, my company has not included per diem and mileage in box one but kept is separate. Please help me :)
Thanks,
Paul