SECTION 2. BACKGROUND

Rev. Proc. 2010–51, 2010–51 I.R.B. 883, provides rules for computing the deductible costs of operating an automobile for business, charitable, medical, or moving expense purposes, and for substantiating, under § 274(d) of the Internal Revenue Code and § 1.274–5 of the Income Tax Regulations, the amount of ordinary and necessary business expenses of local transportation or travel away from home. Taxpayers using the standard mileage rates must comply with Rev. Proc. 2010–51. However, a taxpayer is not required to use the substantiation methods described in Rev. Proc. 2010–51, but instead may substantiate using actual allowable expense amounts if the taxpayer

maintains adequate records or other sufficient evidence.

An independent contractor conducts an annual study for the Internal Revenue Service of the fixed and variable costs of operating an automobile to determine the standard mileage rates for business, medical, and moving use reflected in this notice. The standard mileage rate for charitable use is set by § 170(i).