How do Inspectors who drive from home daily to different locations determine commuting mileage. I leave home and end at home. Average of 50 miles daily.

Are you an independent contractor?   You are not posting from Self-Employed software.  If you are an independent contractor you should be using Self-Employed and your work-related mileage goes on your Schedule C with other business expenses.

 

 

Or are you a W-2 employee?

W-2 employees cannot deduct job-related expenses on a federal return.  Job-related expenses were eliminated as a federal deduction for W-2 employees by the tax laws that changed for 2018 and beyond.  Your state tax laws might be different in AL, AR, CA, HI, MN, NY or PA.

 

 

 

https://ttlc.intuit.com/questions/4482873-which-federal-tax-deductions-have-been-suspended-by-tax-reform

You have to keep accurate records, not averages.  See chapter 4 of publication 463 and especially Figure B on page 12.

https://www.irs.gov/pub/irs-pdf/p463.pdf