2011 Standard Mileage Rates The IRS has increased the standard mileage allowance rates for the second time in 2011 effective July 1st. To better assist you in determining mileage reimbursements, we have updated the Mileage Rates table with the new rates as determined by the IRS.  We have also included the rates that were effective for the first half of 2011 as well as the previous rates for 2010 for your convenience.                                                    2011 2010   Jul 1 - Dec 31 Jan 1 - Jun 30 Entire Year  Business 55.5¢ 51¢ 50¢  Charitable 14¢ 14¢ 14¢  Medical / Moving 23.5¢ 19¢ 16.5¢