The Michigan Department of Treasury has been made aware that some "Reminder of Tax Due" letters sent to taxpayers contain an incorrect toll-free (1-800) TTY number, which may connect callers to a potential scam. Taxpayers with questions regarding unpaid individual income taxes are asked to contact the Treasury directly at 517-636-4486. We apologize for any confusion or concern this may have caused.
Historical Over and Under Payment Interest Rates
Interest Rates
Annual rates of interest due on underpayments and overpayments for the historical periods listed.
The following annual and corresponding daily rates of interest are in effect and will accrue during these periods:
| Period Begins | Period Ends | Annual Rate | Daily Rate |
|---|---|---|---|
| July 1, 2016 | December 31, 2016 | 4.4% | 0.0001202 |
| January 1, 2016 | June 30, 2016 | 4.25% | 0.0001161 |
| July 1, 2015 | December 31, 2015 | 4.25% | 0.0001164 |
| January 1, 2015 | June 30, 2015 | 4.25% | 0.0001164 |
| July 1, 2014 | December 31, 2014 | 4.25% | 0.0001164 |
| January 1, 2014 | June 30, 2014 | 4.25% | 0.0001164 |
| July 1, 2013 | December 31, 2013 | 4.25% | 0.0001164 |
| January 1, 2013 | June 30, 2013 | 4.25% | 0.0001164 |
|
July 1, 2012 |
December 31, 2012 |
4.25% |
0.0001161 |
|
January 1, 2012 |
June 30, 2012 |
4.25% |
0.0001161 |
|
July 1, 2011 |
December 31, 2011 |
4.25% |
0.0001164 |
|
January 1, 2011 |
June 30, 2011 |
4.25% |
0.0001164 |
|
July 1, 2010 |
December 31, 2010 |
4.25% |
0.0001164 |
|
January 1, 2010 |
June 30, 2010 |
4.25% |
0.0001164 |
|
July 1, 2009 |
December 31, 2009 |
4.7% |
0.0001288 |
|
January 1, 2009 |
June 30, 2009 |
6.0% |
0.0001644 |
|
July 1, 2008 |
December 31, 2008 |
7.9% |
0.0002151 |
|
January 1, 2008 |
June 30, 2008 |
9.2% |
0.0002514 |
|
July 1, 2007 |
December 31, 2007 |
9.25% |
0.0002534 |
|
January 1, 2007 |
June 30, 2007 |
9.1% |
0.0002493 |
|
July 1, 2006 |
December 31, 2006 |
8.2% |
0.0002245 |
|
January 1, 2006 |
June 30, 2006 |
7.2% |
0.0001973 |
|
July 1, 2005 |
December 31, 2005 |
6.2% |
0.0001699 |
|
January 1, 2005 |
June 30, 2005 |
5.2% |
0.0001428 |
|
July 1, 2004 |
December 31, 2004 |
5.0% |
0.0001366 |
|
January 1, 2004 |
June 30, 2004 |
5.0% |
0.0001366 |
|
July 1, 2003 |
December 31, 2003 |
5.4% |
0.0001479 |
|
January 1, 2003 |
June 30, 2003 |
5.8% |
0.0001589 |
|
July 1, 2002 |
December 31, 2002 |
6.0% |
0.0001644 |
|
January 1, 2002 |
June 30, 2002 |
8.0% |
0.0002192 |
|
July 1, 2001 |
December 31, 2001 |
10.1% |
0.0002767 |
|
January 1, 2001 |
June 30, 2001 |
10.4% |
0.0002849 |
|
July 1, 2000 |
December 31, 2000 |
9.5% |
0.0002596 |
|
January 1, 2000 |
June 30, 2000 |
8.9% |
0.0002432 |
|
July 1, 1999 |
December 31, 1999 |
8.8% |
0.0002411 |
|
January 1, 1999 |
June 30, 1999 |
9.5% |
0.0002603 |
|
July 1, 1998 |
December 31, 1998 |
9.5% |
0.0002603 |
|
January 1, 1998 |
June 30, 1998 |
9.5% |
0.0002603 |
|
July 1, 1997 |
December 31, 1997 |
9.3% |
0.0002548 |
|
January 1, 1997 |
June 30, 1997 |
9.25% |
0.0002534 |
|
July 1, 1996 |
December 31, 1996 |
9.5% |
0.0002596 |
|
January 1, 1996 |
June 30, 1996 |
9.9% |
0.0002705 |
|
July 1, 1995 |
December 31, 1995 |
9.5% |
0.0002603 |
|
January 1, 1995 |
June 30, 1995 |
8.2% |
0.0002247 |
|
July 1, 1994 |
December 31, 1994 |
7.0% |
0.0001918 |
|
January 1, 1994 |
June 30, 1994 |
7.0% |
0.0001918 |