Since I got my new job in Indy, I’ve been driving hundreds of miles through the course of a week. I thought these miles might be tax-deductible, perhaps after some threshold, so I’d been keeping records of these miles. Today I finally looked it up in Publication 463, Travel, Entertainment, Gift, and Car Expenses: For use in preparing 2008 Returns. Here’s the top part of Figure B from that publication:
From the part I circled, I gather that the mileage from my regular commute is not tax-deductible.