Business Mileage Rate
The mileage rate allowed as a deduction changes regularly.
Most often it changes annually, but at times it can change during the year.
Below are the rates for various periods.
| Period | Business Rate | Depreciation Rate |
| 2009 | $0.55 | $0.21 |
| Jul 1, 2008 to Dec 31, 2008 | $0.585 | $0.21 |
| Jan 1, 2008 to Jun 30, 2008 | $0.505 | $0.21 |
| 2007 | $0.485 | $0.19 |
| 2006 | $0.445 | $0.17 |
| Sep 1, 2005 to Dec 31, 2005 | $0.485 | $0.17 |
| Jan 1, 2005 to Aug 31, 2005 | $0.405 | $0.17 |
| 2004 | $0.375 | $0.16 |
| 2003 | $0.36 | $0.16 |
| 2002 | $0.365 | $0.15 |
| 2001 | $0.345 | $0.15 |
| 2000 | $0.325 | $0.14 |
| 1999 | $0.31 | $0.12 |
| 1998 | $0.325 | $0.12 |
| 1997 | $0.315 | $0.12 |
| 1996 | $0.315 | |
| 1995 | $0.30 | |
| 1994 | $0.29 | $0.12 |
| 1993 | | $0.115 |
| 1992 | $0.28 | $0.115 |
| 1991 | $0.275 | $0.11 |
| 1990 | $0.26 | |
| 1989 | $0.255 | $0.11 |
| 1988 | $0.24 | $0.105 |
| 1987 | $0.225 | $0.10 |
| 1986 | | $0.09 |
| 1985 | $0.21 | |
| 1984 | | |
| 1983 | $0.205 | $0.08 |
| 1982 | | $0.075 |
| 1981 | | |
| 1980 | $0.20 | $0.07 |
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