You are allowed to deduct your mileage (53.5 cents for 2017) and other job expenses, subtracting what you were reimbursed. Do
not subtract your reimbursement if it was included on your W-2 as taxable income. You would treat the gas receipts as reimbursement, but not the $600/Mo. TurboTax completes form 2106, which then carries to Misc itemized deductions on
Schedule A. The problem with this is that you only get to deduct that portion
of your misc deductions that exceed 2% of
your AGI. and then only if your total
itemized deductions exceed the standard deduction. (2% rule explained: https://ttlc.intuit.com/questions/2902781-what-is-the-2-rule)
In TurboTax, enter at:
Federal Taxes Tab
Deductions & Credits
-Scroll down to:
-Employment Expenses
-- Job related expenses
This deduction goes away in 2018, under the new tax law.
