You may have heard that the federal tax code allows for a mileage deduction when a car is used for business purposes.

But did you know that you can take mileage deductions for other forms of driving? Learn more at these websites. Lists IRS standard mileage rates for recent years, including 2013.

Internal Revenue Service: Details standard mileage rate deductible for business-use vehicles.

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Nolo: Spotlights auto expenses deduction among key deductions, including rate changes for 2014. Breaks down the 2013 and 2014 mileage rate deductions for vehicle uses.