What is the difference between deducting miles using the IRS preset rate per mile and using the actual costs?

When you deduct miles using the IRS rate, you simply enter the number of miles you traveled for a charitable purpose. To determine your deduction, DeductionPro multiplies the number of miles by the IRS rate. You can also record amounts for parking and tolls.

When you deduct actual expenses, you enter the amounts you spent on gas and oil, as well as on parking and tolls. You still need to record the number of miles you traveled because the IRS uses this number in calculating how much it will allow for a deduction.