When I was employed at a consulting firm, I was typically asked to track my mileage so that I could get reimbursed. It wasn’t always clear to me if my boss billed the client for the mileage consistently. Now that I’m self employed…

When driving for a consulting project is it customary to bill the client for time spent driving and/or mileage for miles driven? At the current IRS rate of $0.655 per mile, bidding incorrectly can add up to a lot of money. Thanks!