Why does my travel expenses still say $0 despite the fact I entered numbers in at least a dozen times? Is there a way to fix this glitch?

[KarenJ]

Are you a W-2 employee?

[inzanadi]

Yes

[Vanessa]

Unreimbursed employee business expenses are no longer deductible under the new tax laws unless you fall into one of the 4 categories below.  This is why you are seeing zero after entering your mileage for your federal.

A few states still allow this deduction.  If you are in one of those states you will see it on your state return.  

"You can no longer claim a deduction for unreimbursed employee expenses unless you fall into one of the following categories of employment, or have certain qualified educator expenses.

• Armed Forces reservists.

• Qualified performing artists.

• Fee-basis state or local government officials.

• Employees with impairment-related work expenses." https://www.irs.gov/publications/p529#en_US_2018_publink10003917