My company reimburses travel expenses each month. But, instead of the IRS rate, we are reimbursed for the actual cost of fuel and tolls. Traditionally, it's calculated by taking the amount you spend on gas each month and use a ratio to calculate the cost of business miles as opposed to total miles driven in a given month. (Business miles/total miles x gas cost). Needless to say, a plug does not work with this calculation at all. I continue to be reimbursed for gas costs, but not for electric costs. I have two colleagues with Volts and we are trying to come up with a solution that will allow us to be reimbursed. It needs to be a fairly simple formula, because we don't want to invest an inordinate amount of time on record keeping or calculations. Any solution ideas would be appreciated.