Deductions & credits

Yes, I understand that I don't need to claim a home office deduction in order for my home to qualify as the principal place of my business. As stated, I do not intend to claim for a home office deduction. Hopefully, the specific definition of principal place of business as it relates to a home office deduction also applies to those who do not claim for the home office deduction. If there is an alternate definition, please point it out.

 

So if my home is considered the principal place of business (based on the referenced IRS code) what mileage is deductible?