If you are a self-employed independent contractor filing schedule C, you would report the mileage deduction at 70 cents per mile and then report the 58 cents per mile reimbursement as income.
If you are a W-2 employee, the company can reimburse you tax-free any amount they want. As long as they use an accountable plan (where you have to prove mileage by records, or maybe they do it from their dispatch logs) then any reimbursement of 70 cents or less should be tax-free and not included on your taxable income. However, you can't take a tax deduction for the difference. That provision was removed from the tax code in 2017 for W-2 employees.
You can still list it in Turbotax, because some states still allow the deduction, but only if you itemize your deductions and the unreimbursed mileage is more than 2% of your income. Turbotax will ask for your mileage and will also ask for your un-taxed reimbursements. Be sure to enter both so the deduction is calculated correctly. If your state allows it, and if it will benefit to you, it will automatically flow to your state return.
