This is a table of rates taken from the IRS Revenue Rulings for Section 7520
rates from May 1989 to the month shown. These rates are used by the
calculators on this site and are manually updated based on the receipt of the
relevant Revenue Ruling.
| Year | January | February | March | April | May | June | July | August | September | October | November | December |
| 1989 | | | | | 11.60% | 11.20% | 10.60% | 10.00% | 9.60% | 10.20% | 10.00% | 9.80% |
| 1990 | 9.60% | 9.80% | 10.20% | 10.60% | 10.60% | 11.00% | 10.60% | 10.40% | 10.20% | 10.60% | 10.60% | 10.20% |
| 1991 | 9.80% | 9.60% | 9.40% | 9.60% | 9.60% | 9.60% | 9.60% | 9.80% | 9.60% | 9.00% | 8.60% | 8.40% |
| 1992 | 8.20% | 7.60% | 8.00% | 8.40% | 8.60% | 8.40% | 8.20% | 7.80% | 7.20% | 7.00% | 6.80% | 7.40% |
| 1993 | 7.60% | 7.60% | 7.00% | 6.60% | 6.60% | 6.40% | 6.60% | 6.40% | 6.40% | 6.00% | 6.00% | 6.20% |
| 1994 | 6.40% | 6.40% | 6.40% | 7.00% | 7.80% | 8.40% | 8.20% | 8.40% | 8.40% | 8.60% | 9.00% | 9.40% |
| 1995 | 9.60% | 9.60% | 9.40% | 8.80% | 8.60% | 8.20% | 7.60% | 7.20% | 7.60% | 7.60% | 7.40% | 7.20% |
| 1996 | 6.80% | 6.80% | 6.60% | 7.00% | 7.60% | 8.00% | 8.20% | 8.20% | 8.00% | 8.00% | 8.00% | 7.60% |
| 1997 | 7.40% | 7.60% | 7.80% | 7.80% | 8.20% | 8.20% | 8.00% | 7.60% | 7.60% | 7.60% | 7.40% | 7.20% |
| 1998 | 7.20% | 6.80% | 6.80% | 6.80% | 6.80% | 7.00% | 6.80% | 6.80% | 6.60% | 6.20% | 5.40% | 5.40% |
| 1999 | 5.60% | 5.60% | 5.80% | 6.40% | 6.20% | 6.40% | 7.00% | 7.20% | 7.20% | 7.20% | 7.40% | 7.40% |
| 2000 | 7.40% | 8.00% | 8.20% | 8.00% | 7.80% | 8.00% | 8.00% | 7.60% | 7.60% | 7.40% | 7.20% | 7.00% |
| 2001 | 6.80% | 6.20% | 6.20% | 6.00% | 5.80% | 6.00% | 6.20% | 6.00% | 5.80% | 5.60% | 5.00% | 4.80% |
| 2002 | 5.40% | 5.60% | 5.40% | 5.60% | 6.00% | 5.80% | 5.60% | 5.20% | 4.60% | 4.20% | 3.60% | 4.00% |
| 2003 | 4.20% | 4.00% | 3.80% | 3.60% | 3.80% | 3.60% | 3.00% | 3.20% | 4.20% | 4.40% | 4.00% | 4.20% |
| 2004 | 4.20% | 4.20% | 4.00% | 3.80% | 3.80% | 4.60% | 5.00% | 4.80% | 4.60% | 4.40% | 4.20% | 4.20% |
| 2005 | 4.60% | 4.60% | 4.60% | 5.00% | 5.20% | 4.80% | 4.60% | 4.80% | 5.00% | 5.00% | 5.00% | 5.40% |
| 2006 | 5.40% | 5.20% | 5.40% | 5.60% | 5.80% | 6.00% | 6.00% | 6.20% | 6.00% | 5.80% | 5.60% | 5.80% |
| 2007 | 5.60% | 5.60% | 5.80% | 5.60% | 5.60% | 5.60% | 6.00% | 6.20% | 5.80% | 5.20% | 5.20% | 5.00% |
| 2008 | 4.40% | 4.20% | 3.60% | 3.40% | 3.20% | 3.80% | 4.20% | 4.20% | 4.20% | 3.80% | 3.60% | 3.40% |
| 2009 | 2.40% | 2.00% | 2.40% | 2.60% | 2.40% | 2.80% | 3.40% | 3.40% | 3.40% | 3.20% | 3.20% | 3.20% |
| 2010 | 3.00% | 3.40% | 3.20% | 3.20% | 3.40% | 3.20% | 2.80% | 2.60% | 2.40% | 2.00% | 2.00% | 1.80% |
| 2011 | 2.40% | 2.80% | 3.00% | 3.00% | 3.00% | 2.80% | 2.40% | 2.20% | 2.00% | 1.40% | 1.40% | 1.60% |
| 2012 | 1.40% | 1.40% | 1.40% | 1.40% | 1.60% | 1.20% | 1.20% | 1.00% | 1.00% | 1.20% | 1.00% | 1.20% |
| 2013 | 1.00% | 1.20% | 1.40% | 1.40% | 1.20% | 1.20% | 1.40% | 2.00% | 2.00% | 2.40% | 2.00% | 2.00% |
| 2014 | 2.20% | 2.40% | 2.20% | 2.20% | 2.40% | 2.20% | 2.20% | 2.20% | 2.20% | 2.20% | 2.20% | 2.00% |
| 2015 | 2.20% | 2.00% | 1.80% | 2.00% | 1.80% | 2.00% | 2.20% | 2.20% | 2.20% | 2.00% | 2.00% | 2.00% |
| 2016 | 2.20% | 2.20% | 1.80% | 1.80% | 1.80% | 1.80% | 1.80% | 1.40% | 1.40% | 1.60% | 1.60% | 1.80% |
| 2017 | 2.40% | 2.60% | 2.40% | 2.60% | 2.40% | 2.40% | 2.20% | 2.40% | 2.40% | 2.20% | 2.40% | 2.60% |
| 2018 | 2.60% | 2.80% | 3.00% | 3.20% | 3.20% | 3.40% | 3.40% | 3.40% | 3.40% | 3.40% | 3.60% | 3.60% |
| 2019 | 3.40% | 3.20% | 3.20% | 3.00% | 2.80% | 2.80% | 2.60% | 2.20% | 2.20% | 1.80% | 2.00% | 2.00% |
| 2020 | 2.00% | 2.20% | 1.80% | 1.20% | 0.80% | 0.60% | 0.60% | 0.40% | 0.40% | 0.40% | 0.40% | 0.60% |
| 2021 | 0.60% | 0.60% | 0.80% | 1.00% | 1.20% | 1.20% | 1.20% | 1.20% | 1.00% | 1.00% | 1.40% | 1.60% |
| 2022 | 1.60% | 1.60% | 2.00% | 2.20% | 3.00% | 3.60% | 3.60% | 3.80% | 3.60% | 4.00% | 4.80% | 5.20% |
| 2023 | 4.60% | 4.60% | 4.40% | 5.00% | 4.40% | 4.20% | 4.60% | 5.00% | 5.00% | 5.40% | 5.60% | 5.80% |
| 2024 | 5.20% | 4.80% | 5.00% | 5.20% | 5.40% | 5.60% | 5.40% | 5.20% | 4.80% | 4.40% | 4.40% | 5.00% |