ADOR is aware that some small business income taxpayers received a billing notice even though their overpayment individual income tax return is larger than the tax due small business income return. Please be advised that the Department is working to resolve the issue as soon as possible.
Customer Notice: To schedule an appointment, please contact us at [email protected].
On January 1 of each year, the Arizona Department of Revenue (ADOR) will add any outstanding interest as of that date to the principal amount of tax still owed. This compounding interest is then calculated on the new tax principal amount.
The department applies interest, compounded annually, in the same manner and at the same time as prescribed by the U.S. Internal Revenue Code (IRC), Section 6621. However, that rate of interest for both overpayments and underpayments for all taxpayers is the federal short-term rate, determined by the IRC, plus three percentage points.
PERIOD | COMPOUND POINT | DAYS/YEAR BASE | UNDERPAYMENT RATE | OVERPAYMENT RATE | |||
BEGINNING | ENDING | ANNUAL | DAILY | ANNUAL | DAILY | ||
**INT THRU |
SS |
||||||
1/1/2023 | 3/31/2023 | 365 | 7% | 0.0001918 | 7% | 0.0001918 | |
4/1/2023 | 6/30/2023 | 365 | |||||
7/1/2023 | 9/30/2023 | 365 | |||||
10/1/2023 | 12/31/2023 | 365 | |||||
**INT THRU |
SS |
||||||
1/1/2022 | 3/31/2022 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
4/1/2022 | 6/30/2022 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
7/1/2022 | 9/30/2022 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
10/1/2022 | 12/31/2022 | 365 | 6% | 0.0001639 | 6% | 0.0001639 | |
**INT THRU |
SS |
||||||
1/1/2021 | 3/31/2021 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
4/1/2021 | 6/30/2021 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
7/1/2021 | 9/30/2021 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
10/1/2021 | 12/31/2021 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
**INT THRU |
SS |
||||||
1/1/2020 | 3/31/2020 | 366 | 5% | 0.0001366 | 5% | 0.0001366 | |
4/1/2020 | 6/30/2020 | 366 | 5% | 0.0001366 | 5% | 0.0001366 | |
7/1/2020 | 9/30/2020 | 366 | 3% | 0.0000820 | 3% | 0.0000820 | |
10/1/2020 | 12/31/2020 | 366 | 3% | 0.0000820 | 3% | 0.0000820 | |
**INT THRU |
SS |
||||||
1/1/2019 | 3/31/2019 | 365 | 6% | 0.0001644 | 6% | 0.0001644 | |
4/1/2019 | 6/30/2019 | 365 | 6% | 0.0001644 | 6% | 0.0001644 | |
7/1/2019 | 9/30/2019 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
10/1/2019 | 12/31/2019 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
**INT THRU |
SS |
||||||
1/1/2018 | 3/31/2018 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
4/1/2018 | 6/30/2018 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
7/1/2018 | 9/30/2018 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
10/1/2018 | 12/31/2018 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
**INT THRU |
SS |
||||||
1/1/2017 | 3/31/2017 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
4/1/2017 | 6/30/2017 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
7/1/2017 | 9/30/2017 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
10/1/2017 | 12/31/2017 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
**INT THRU |
SS |
||||||
1/1/2016 | 3/31/2016 | 366 | 3% | 0.0000820 | 3% | 0.0000820 | |
4/1/2016 | 6/30/2016 | 366 | 4% | 0.0001093 | 4% | 0.0001093 | |
7/1/2016 | 9/30/2016 | 366 | 4% | 0.0001093 | 4% | 0.0001093 | |
10/1/2016 | 12/31/2016 | 366 | 4% | 0.0001093 | 4% | 0.0001093 | |
**INT THRU |
SS |
||||||
1/1/2015 | 3/31/2015 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
4/1/2015 | 6/30/2015 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
7/1/2015 | 9/30/2015 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
10/1/2015 | 12/31/2015 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
**INT THRU | SS | ||||||
1/1/2014 | 3/31/2014 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
4/1/2014 | 6/30/2014 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
7/1/2014 | 9/30/2014 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
10/1/2014 | 12/31/2014 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
**INT THRU | SS | ||||||
1/1/2013 | 3/31/2013 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
4/1/2013 | 6/30/2013 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
7/1/2013 | 9/30/2013 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
10/1/2013 | 12/31/2013 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
**INT THRU | SS |
|
|||||
1/1/2012 | 3/31/2012 | 366 | 3% | 0.0000820 | 3% | 0.0000820 | |
4/1/2012 | 6/30/2012 | 366 | 3% | 0.0000820 | 3% | 0.0000820 | |
7/1/2012 | 9/30/2012 | 366 | 3% | 0.0000820 | 3% | 0.0000820 | |
10/1/2012 | 12/31/2012 | 366 | 3% | 0.0000820 | 3% | 0.0000820 | |
**INT THRU | SS | ||||||
1/1/2011 | 3/31/2011 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
4/1/2011 | 9/30/2011 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
10/1/2011 | 12/31/2011 | 365 | 3% | 0.0000822 | 3% | 0.0000822 | |
**INT THRU | SS | ||||||
1/1/2010 | 12/31/2010 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
**INT THRU | SS | ||||||
1/1/2009 | 3/31/2009 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
4/1/2009 | 12/31/2009 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
**INT THRU | SS | ||||||
1/1/2008 | 3/31/2008 | 366 | 7% | 0.0001913 | 7% | 0.0001913 | |
4/1/2008 | 6/30/2008 | 366 | 6% | 0.0001639 | 6% | 0.0001639 | |
7/1/2008 | 9/30/2008 | 366 | 5% | 0.0001366 | 5% | 0.0001366 | |
10/1/2008 | 12/31/2008 | 366 | 6% | 0.0001639 | 6% | 0.0001639 | |
**INT THRU | SS | ||||||
1/1/2007 | 12/31/2007 | 365 | 8% | 0.0002192 | 8% | 0.0002192 | |
**INT THRU | SS | ||||||
1/1/2006 | 6/30/2006 | 365 | 7% | 0.0001918 | 7% | 0.0001918 | |
7/1/2006 | 12/31/2006 | 365 | 8% | 0.0002192 | 8% | 0.0002192 | |
**INT THRU | SS | ||||||
1/1/2005 | 3/31/2005 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
4/1/2005 | 9/30/2005 | 365 | 6% | 0.0001644 | 6% | 0.0001644 | |
10/1/2005 | 12/31/2005 | 365 | 7% | 0.0001918 | 7% | 0.0001918 | |
**INT THRU | SS | ||||||
1/1/2004 | 3/31/2004 | 366 | 4% | 0.0001093 | 4% | 0.0001093 | |
4/1/2004 | 6/30/2004 | 366 | 5% | 0.0001366 | 5% | 0.0001366 | |
7/1/2004 | 9/30/2004 | 366 | 4% | 0.0001093 | 4% | 0.0001093 | |
10/1/2004 | 12/31/2004 | 366 | 5% | 0.0001366 | 5% | 0.0001366 | |
**INT THRU | SS | ||||||
1/1/2003 | 9/30/2003 | 365 | 5% | 0.0001370 | 5% | 0.0001370 | |
10/1/2003 | 12/31/2003 | 365 | 4% | 0.0001096 | 4% | 0.0001096 | |
**INT THRU | SS | ||||||
1/1/2002 | 12/31/2002 | 365 | 6% | 0.0001644 | 6% | 0.0001644 | |
**INT THRU | SS | ||||||
1/1/2001 | 3/31/2001 | 365 | 9% | 0.0002466 | 9% | 0.0002466 | |
4/1/2001 | 6/30/2001 | 365 | 8% | 0.0002192 | 8% | 0.0002192 | |
7/1/2001 | 12/31/2001 | 365 | 7% | 0.0001918 | 7% | 0.0001918 | |
**INT THRU | SS | ||||||
1/1/2000 | 3/31/2000 | 366 | 8% | 0.0002186 | 8% | 0.0002186 | |
4/1/2000 | 12/31/2000 | 366 | 9% | 0.0002459 | 9% | 0.0002459 | |
**INT THRU | SS | ||||||
1/1/1999 | 3/31/1999 | 365 | 7% | 0.0001918 | 6% | 0.0001644 | |
4/1/1999 | 9/30/1999 | 365 | 8% | 0.0002192 | 7% | 0.0001918 | |
10/1/1999 | 12/31/1999 | 365 | 8% | 0.0002192 | 8% | 0.0002192 | |
**INT THRU | SS | ||||||
1/1/1998 | 3/31/1998 | 365 | 9% | 0.0002466 | 8% | 0.0002192 | |
4/1/1998 | 12/31/1998 | 365 | 8% | 0.0002192 | 7% | 0.0001918 | |
**INT THRU | SS | ||||||
1/1/1997 | 12/31/1997 | 365 | 9% | 0.0002466 | 8% | 0.0002192 | |
**INT THRU | SS | ||||||
1/1/1996 | 3/31/1996 | 366 | 9% | 0.0002459 | 8% | 0.0002186 | |
4/1/1996 | 6/30/1996 | 366 | 8% | 0.0002186 | 7% | 0.0001913 | |
7/1/1996 | 12/31/1996 | 366 | 9% | 0.0002459 | 8% | 0.0002186 | |
**INT THRU | SS | ||||||
1/1/1995 | 3/31/1995 | 365 | 9% | 0.0002466 | 8% | 0.0002192 | |
4/1/1995 | 6/30/1995 | 365 | 10% | 0.0002740 | 9% | 0.0002466 | |
7/1/1995 | 12/31/1995 | 365 | 9% | 0.0002466 | 8% | 0.0002192 | |
**INT THRU | SS | ||||||
1/1/1994 | 6/30/1994 | 365 | 7% | 0.0001918 | 6% | 0.0001644 | |
7/1/1994 | 9/30/1994 | 365 | 8% | 0.0002192 | 7% | 0.0001918 | |
10/1/1994 | 12/31/1994 | 365 | 9% | 0.0002466 | 8% | 0.0002192 | |
**INT THRU | SS | ||||||
1/1/1993 | 12/31/1993 | 365 | 7% | 0.0001918 | 6% | 0.0001644 | |
**INT THRU | SS | ||||||
1/1/1992 | 3/31/1992 | 366 | 9% | 0.0002459 | 8% | 0.0002186 | |
4/1/1992 | 9/30/1992 | 366 | 8% | 0.0002186 | 7% | 0.0001913 | |
10/1/1992 | 12/31/1992 | 366 | 7% | 0.0001913 | 6% | 0.0001639 | |
**INT THRU | SS | ||||||
1/1/1991 | 3/31/1991 | 365 | 11% | 0.0003014 | 10% | 0.0002740 | |
4/1/1991 | 12/31/1991 | 365 | 10% | 0.0002740 | 9% | 0.0002466 | |
**INT THRU | SS | ||||||
1/1/1990 | 12/31/1990 | 365 | 11% | 0.0003014 | 10% | 0.0002740 | |
**INT THRU | SS | ||||||
1/1/1989 | 3/31/1989 | 365 | 11% | 0.0003014 | 10% | 0.0002740 | |
4/1/1989 | 9/30/1989 | 365 | 12% | 0.0003288 | 11% | 0.0003014 | |
10/1/1989 | 12/31/1989 | 365 | 11% | 0.0003014 | 10% | 0.0002740 | |
**INT THRU | SS | ||||||
1/1/1988 | 3/31/1988 | 366 | 11% | 0.0003014 | 10% | 0.0002740 | |
4/1/1988 | 6/30/1988 | 366 | 10% | 0.0002740 | 9% | 0.0002466 | |
7/1/1988 | 9/30/1988 | 366 | 10% | 0.0002732 | 9% | 0.0002459 | |
10/1/1988 | 12/31/1988 | 366 | 11% | 0.0003005 | 10% | 0.0002732 | |
**INT THRU | SS | ||||||
1/1/1987 | 3/31/1987 | 365 | 9% | 0.0002500 | 8% | 0.0002222 | |
4/1/1987 | 9/30/1987 | 365 | 9% | 0.0002466 | 8% | 0.0002192 | |
10/1/1987 | 12/31/1987 | 365 | 10% | 0.0002740 | 9% | 0.0002466 | |
**INT THRU | SS | ||||||
1/1/1986 | 6/30/1986 | 365 | 10% | 0.0002778 | 10% | 0.0002778 | |
7/1/1986 | 12/31/1986 | 365 | 9% | 0.0002500 | 9% | 0.0002500 | |
**INT THRU | SS | ||||||
1/1/1985 | 6/30/1985 | 365 | 13% | 0.0003611 | 13% | 0.0003611 | |
7/1/1985 | 12/31/1985 | 365 | 11% | 0.0003056 | 11% | 0.0003056 |