Depreciation Adjustment for Standard Mileage Rate
If if you take the standard mileage deduction on your taxes, when you dispose of the vehicle, you will need to make an adjustment to your basis. You will need to reduce your basis by the number of business miles each year times the per mile depreciation adjustment.  The table below provides you with the applicable numbers since 1988.

Year Depreciation Per Mile
2018 25
2017 25
2016 24
2015 24
2014 22
2013 23
2012 23
2011 22
2010 23
2008-09 21
2007 19
2005-06 17
2003-04 16
2001-02 15
2000 14
1994-99 12
1992-93 11.5
1989-91 11
1988 10.5