You can claim mileage (and other travel expenses) for military service as an adjustment (rather than a limited deduction) if the following applies:
See Tax Topic 511 Business Travel Expenses for more details:
- The travel must be overnight.
- The travel must be over 100 miles.
- The expenses are limited to the following:
- The standard mileage rate for auto expenses
- The regular per diem rate for lodging, meals, and incidental expenses.
- Any parking fees, ferry fees, and tolls.
- Any expenses beyond the limited amounts can be deducted as part of your miscellaneous itemized deductions.
TurboTax will ask if you are “An Armed Forces Reservist”. Although the question in TurboTax doesn’t use national guard member, you should still answer yes to trigger the program to make the necessary calculations.