Interest and estimate penalty rates
Current rates
07/01/2025 – 12/31/2025
| 7% | Personal income tax under- and overpayments |
|---|---|
| 7% | Corporation underpayment |
| 7% | Estimate penalties |
| 4% | Corporation overpayments |
Previous rates
*Personal income tax underpayment and overpayment, corporation underpayment, and estimate penalty rate.
| From | To | Interest rate* | Corporation overpayment rate |
|---|---|---|---|
| 01/01/2025 | 06/30/2025 | 8% | 5% |
| 07/01/2024 | 12/31/2024 | 8% | 5% |
| 01/01/2024 | 06/30/2024 | 7% | 5% |
| 07/01/2023 | 12/31/2023 | 7% | 5% |
| 01/01/2023 | 06/30/2023 | 5% | 2% |
| 01/01/2022 | 12/31/2022 | 3% | 0% |
| 01/01/2021 | 12/31/2021 | 3% | 0% |
| 01/01/2020 | 12/31/2020 | 5% | 2% |
| 07/01/2019 | 12/31/2019 | 6% | 2% |
| 01/01/2019 | 06/30/2019 | 5% | 2% |
| 07/01/2017 | 12/31/2018 | 4% | 1% |
| 01/01/2017 | 06/30/2017 | 4% | 0% |
| 07/01/2012 | 12/31/2016 | 3% | 0% |
| 01/01/2012 | 06/30/2012 | 4% | 0% |
| 07/01/2011 | 12/31/2011 | 3% | 0% |
| 01/01/2010 | 06/30/2011 | 4% | 0% |
| 07/01/2009 | 12/31/2009 | 5% | 0% |
| 01/01/2009 | 06/30/2009 | 5% | 2% |
| 07/01/2008 | 12/31/2008 | 7% | 3% |
| 01/01/2007 | 06/30/2008 | 8% | 5% |
| 07/01/2006 | 12/31/2006 | 7% | 4% |
| 01/01/2006 | 06/30/2006 | 6% | 3% |
| 07/01/2005 | 12/31/2005 | 5% | 2% |
| 07/01/2004 | 06/30/2005 | 4% | 1% |
| 07/01/2003 | 06/30/2004 | 5% | 1% |
| 07/01/2002 | 06/30/2003 | 6% | 2% |
| 01/01/2002 | 06/30/2002 | 7% | |
| 01/01/2001 | 12/31/2001 | 9% | |
| 01/01/2000 | 12/31/2000 | 8% | |
| 07/01/1999 | 12/31/1999 | 7% | |
| 01/01/1999 | 06/30/1999 | 8% | |
| 07/01/1995 | 12/31/1998 | 9% | |
| 01/01/1995 | 06/30/1995 | 8% | |
| 07/01/1993 | 12/31/1994 | 7% | |
| 01/01/1993 | 06/30/1993 | 8% | |
| 07/01/1992 | 12/31/1992 | 9% | |
| 07/01/1991 | 06/30/1992 | 10% | |
| 01/01/1990 | 06/30/1991 | 11% | |
| 07/01/1989 | 12/31/1989 | 12% | |
| 10/01/1988 | 06/30/1989 | 11% | |
| 04/01/1988 | 09/30/1988 | 10% | |
| 01/01/1988 | 03/31/1988 | 11% | |
| 10/01/1987 | 12/31/1987 | 10% | |
| 01/01/1987 | 09/30/1987 | 8% | |
| 07/01/1986 | 12/31/1986 | 9% | |
| 01/01/1986 | 06/30/1986 | 10% | |
| 07/01/1985 | 12/31/1985 | 11% | |
| 01/01/1985 | 06/30/1985 | 13% | |
| 07/01/1983 | 12/31/1984 | 11% | |
| 03/01/1983 | 06/30/1983 | 16% | |
| 01/01/1983 | 02/28/1983 | 14% | |
| 05/27/1982 | 12/31/1982 | 18% | |
| 01/01/1976 | 05/26/1982 | 12% | |
| Before 01/01/1976 | Before 01/01/1976 | 6% |
Last updated: 09/24/2025