History of initial interest rates by bond type
| Bond type |
| Month of sale | ROR | DOR | TOS | COI | EDO | ROS | ROD |
| 2026-10 | 4,00% | 4,15% | 4,40% | 4,75% | 5,35% | 5,00% | 5,60% |
| 2026-09 | 4,00% | 4,15% | 4,40% | 4,75% | 5,35% | 5,00% | 5,60% |
| 2026-08 | 4,00% | 4,15% | 4,40% | 4,75% | 5,35% | 5,00% | 5,60% |
| 2026-07 | 4,00% | 4,15% | 4,40% | 4,75% | 5,35% | 5,00% | 5,60% |
| 2026-06 | 4,00% | 4,15% | 4,40% | 4,75% | 5,35% | 5,00% | 5,60% |
| 2026-05 | 4,00% | 4,15% | 4,40% | 4,75% | 5,35% | 5,00% | 5,60% |
| 2026-04 | 4,00%▼ | 4,15%▼ | 4,40%▼ | 4,75%▼ | 5,35%▼ | 5,00%▼ | 5,60%▼ |
| 2026-03 | 4,25% | 4,40% | 4,65% | 5,00% | 5,60% | 5,20% | 5,85% |
| 2026-02 | 4,25% | 4,40% | 4,65% | 5,00% | 5,60% | 5,20% | 5,85% |
| 2026-01 | 4,25% | 4,40% | 4,65% | 5,00% | 5,60% | 5,20% | 5,85% |
| 2025-12 | 4,25%▼ | 4,40%▼ | 4,65%▼ | 5,00%▼ | 5,60%▼ | 5,20%▼ | 5,85%▼ |
| 2025-11 | 4,50%▼ | 4,65%▼ | 4,90%▼ | 5,25%▼ | 5,75%▼ | 5,45%▼ | 6,00%▼ |
| 2025-10 | 4,75%▼ | 4,90%▼ | 5,15%▼ | 5,50%▼ | 6,00% | 5,70%▼ | 6,25% |
| 2025-09 | 5,00% | 5,15% | 5,40% | 5,75% | 6,00% | 5,95% | 6,25% |
| 2025-08 | 5,00%▼ | 5,15%▼ | 5,40%▼ | 5,75%▼ | 6,00%▼ | 5,95%▼ | 6,25%▼ |
| 2025-07 | 5,25% | 5,40% | 5,65% | 6,00% | 6,25% | 6,20% | 6,50% |
| 2025-06 | 5,25%▼ | 5,40%▼ | 5,65%▼ | 6,00%▼ | 6,25%▼ | 6,20%▼ | 6,50%▼ |
| 2025-05 | 5,75% | 5,90% | 5,75%▼ | 6,10%▼ | 6,35%▼ | 6,30%▼ | 6,60%▼ |
| 2025-04 | 5,75% | 5,90% | 5,95% | 6,30% | 6,55% | 6,50% | 6,80% |
| 2025-03 | 5,75% | 5,90% | 5,95% | 6,30% | 6,55% | 6,50% | 6,80% |
| 2025-02 | 5,75% | 5,90% | 5,95% | 6,30% | 6,55% | 6,50% | 6,80% |
| 2025-01 | 5,75% | 5,90% | 5,95% | 6,30% | 6,55% | 6,50% | 6,80% |
| 2024-12 | 5,75% | 5,90% | 5,95% | 6,30% | 6,55% | 6,50% | 6,80% |
| 2024-11 | 5,75% | 5,90% | 5,95% | 6,30% | 6,55% | 6,50% | 6,80% |
| 2024-10 | 5,75% | 5,90% | 5,95% | 6,30% | 6,55% | 6,50% | 6,80% |
| 2024-09 | 5,75%▼ | 5,90%▼ | 5,95%▼ | 6,30%▼ | 6,55%▼ | 6,50%▼ | 6,80%▼ |
| 2024-08 | 5,95% | 6,15% | 6,20% | 6,55% | 6,80% | 6,75% | 7,05% |
| 2024-07 | 5,95% | 6,15% | 6,20% | 6,55% | 6,80% | 6,75% | 7,05% |
| 2024-06 | 5,95%▼ | 6,15%▼ | 6,20%▼ | 6,55% | 6,80% | 6,75% | 7,05% |
| 2024-05 | 6,05% | 6,30% | 6,40% | 6,55% | 6,80% | 6,75% | 7,05% |
| 2024-04 | 6,05% | 6,30% | 6,40% | 6,55% | 6,80% | 6,75% | 7,05% |
| 2024-03 | 6,05% | 6,30% | 6,40% | 6,55% | 6,80% | 6,75% | 7,05% |
| 2024-02 | 6,05%▼ | 6,30%▼ | 6,40%▼ | 6,55%▼ | 6,80%▼ | 6,75%▼ | 7,05%▼ |
| 2024-01 | 6,15%▼ | 6,40%▼ | 6,50%▼ | 6,65%▼ | 6,90%▼ | 6,85%▼ | 7,15%▼ |
| 2023-12 | 6,25% | 6,50% | 6,60% | 6,75% | 7,00% | 6,95% | 7,25% |
| 2023-11 | 6,25%▼ | 6,50%▼ | 6,60%▼ | 6,75%▼ | 7,00%▼ | 6,95%▼ | 7,25%▼ |
| 2023-10 | 6,50%▼ | 6,75%▼ | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-09 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-08 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-07 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-06 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-05 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-04 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-03 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-02 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2023-01 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2022-12 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2022-11 | 6,75% | 6,85% | 6,85% | 7,00% | 7,25% | 7,20% | 7,50% |
| 2022-10 | 6,75%▲ | 6,85%▲ | 6,85%▲ | 7,00%▲ | 7,25%▲ | 7,20%▲ | 7,50%▲ |
| 2022-09 | 6,50% | 6,75% | 6,50% | 6,50% | 6,75% | 6,70% | 7,00% |
| 2022-08 | 6,50%▲ | 6,75%▲ | | 6,50%▲ | 6,75%▲ | 6,70%▲ | 7,00%▲ |
| 2022-07 | 6,00%▲ | 6,25%▲ | | 6,00%▲ | 6,25%▲ | 6,20%▲ | 6,50%▲ |
| 2022-06 | 5,25% | 5,50% | | 5,50%▲ | 5,75%▲ | 5,70%▲ | 6,00%▲ |
| 2022-05 | | | | 3,30%▲ | 3,70%▲ | 3,50%▲ | 4,00%▲ |
| 2022-04 | | | | 2,30%▲ | 2,70%▲ | 2,50%▲ | 3,00%▲ |
| 2022-03 | | | | 1,80% | 2,20% | 2,00% | 2,50% |
| 2022-02 | | | | 1,80%▲ | 2,20%▲ | 2,00%▲ | 2,50%▲ |
| 2022-01 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-12 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-11 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-10 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-09 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-08 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-07 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-06 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-05 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-04 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-03 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-02 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2021-01 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2020-12 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2020-11 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2020-10 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2020-09 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2020-08 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2020-07 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2020-06 | | | | 1,30% | 1,70% | 1,50% | 2,00% |
| 2020-05 | | | | 1,30%▼ | 1,70%▼ | 1,50%▼ | 2,00%▼ |
| 2020-04 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2020-03 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2020-02 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2020-01 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-12 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-11 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-10 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-09 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-08 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-07 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-06 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-05 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-04 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-03 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-02 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2019-01 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-12 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-11 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-10 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-09 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-08 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-07 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-06 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-05 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-04 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-03 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-02 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2018-01 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-12 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-11 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-10 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-09 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-08 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-07 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-06 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-05 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-04 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-03 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-02 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2017-01 | | | | 2,40% | 2,70% | 2,80% | 3,20% |
| 2016-12 | | | | 2,40%▲ | 2,70%▲ | 2,80%▲ | 3,20%▲ |
| 2016-11 | | | | 2,30% | 2,50% | 2,60% | 3,00% |
| 2016-10 | | | | 2,30% | 2,50% | 2,60% | 3,00% |
| 2016-09 | | | | 2,30% | 2,50% | | |
| 2016-08 | | | | 2,30% | 2,50% | | |
| 2016-07 | | | | 2,30% | 2,50% | | |
| 2016-06 | | | | 2,30% | 2,50% | | |
| 2016-05 | | | | 2,30% | 2,50% | | |
| 2016-04 | | | | 2,30% | 2,50% | | |
| 2016-03 | | | | 2,30% | 2,50% | | |
| 2016-02 | | | | 2,30% | 2,50% | | |
| 2016-01 | | | | 2,30% | 2,50% | | |
| 2015-12 | | | | 2,30% | 2,50% | | |
| 2015-11 | | | | 2,30% | 2,50% | | |
| 2015-10 | | | | 2,30% | 2,50% | | |
| 2015-09 | | | | 2,30% | 2,50% | | |
| 2015-08 | | | | 2,30% | 2,50% | | |
| 2015-07 | | | | 2,30% | 2,50% | | |
| 2015-06 | | | | 2,30% | 2,50% | | |
| 2015-05 | | | | 2,30% | 2,50% | | |
| 2015-04 | | | | 2,30%▼ | 2,50%▼ | | |
| 2015-03 | | | | 2,60% | 3,00% | | |
| 2015-02 | | | | 2,60% | 3,00% | | |
| 2015-01 | | | | 2,60% | 3,00% | | |
| 2014-12 | | | | 2,60% | 3,00% | | |
| 2014-11 | | | | 2,60%▼ | 3,00%▼ | | |
| 2014-10 | | | | 2,80%▼ | 3,30%▼ | | |
| 2014-09 | | | | 3,10%▼ | 3,60%▼ | | |
| 2014-08 | | | | 3,50% | 4,00% | | |
| 2014-07 | | | | 3,50% | 4,00% | | |
| 2014-06 | | | | 3,50% | 4,00% | | |
| 2014-05 | | | | 3,50% | 4,00% | | |
| 2014-04 | | | | 3,50% | 4,00% | | |
| 2014-03 | | | | 3,50% | 4,00% | | |
| 2014-02 | | | | 3,50% | 4,00% | | |
| 2014-01 | | | | 3,50% | 4,00% | | |
| 2013-12 | | | | 3,50% | 4,00% | | |
| 2013-11 | | | | 3,50% | 4,00% | | |
| 2013-10 | | | | 3,50% | 4,00% | | |
| 2013-09 | | | | 3,50% | 4,00% | | |
| 2013-08 | | | | 3,50% | 4,00% | | |
| 2013-07 | | | | 3,50% | 4,00% | | |
| 2013-06 | | | | 3,50% | 4,00% | | |
| 2013-05 | | | | 3,50%▼ | 4,00%▼ | | |
| 2013-04 | | | | 4,50% | 5,00% | | |
| 2013-03 | | | | 4,50% | 5,00% | | |
| 2013-02 | | | | 4,50% | 5,00% | | |
| 2013-01 | | | | 4,50%▼ | 5,00%▼ | | |
| 2012-12 | | | | 5,00% | 5,50%▼ | | |
| 2012-11 | | | | 5,00%▼ | 5,80% | | |
| 2012-10 | | | | 5,50% | | | |
| 2012-09 | | | | 5,50% | | | |
| 2012-08 | | | | 5,50% | 6,00% | | |
| 2012-07 | | | | 5,50% | 6,00%▼ | | |
| 2012-06 | | | | 5,50% | 6,50% | | |
| 2012-05 | | | | 5,50% | 6,50% | | |
| 2012-04 | | | | 5,50% | 6,50% | | |
| 2012-03 | | | | 5,50%▲ | 6,50%▲ | | |
| 2012-02 | | | | 5,25%▲ | 6,00% | | |
| 2012-01 | | | | 5,00% | 6,00%▲ | | |
| 2011-12 | | | | 5,00% | 5,75% | | |
| 2011-11 | | | | 5,00% | 5,75% | | |
| 2011-10 | | | | 5,00% | 5,75% | | |
| 2011-09 | | | | 5,00% | 5,75% | | |
| 2011-08 | | | | 5,00% | 5,75% | | |
| 2011-07 | | | | 5,00% | 5,75% | | |
| 2011-06 | | | | 5,00% | 5,75% | | |
| 2011-05 | | | | 5,00% | 5,75% | | |
| 2011-04 | | | | 5,00% | 5,75% | | |
| 2011-03 | | | | 5,00% | 5,75% | | |
| 2011-02 | | | | 5,00%▲ | 5,75%▲ | | |
| 2011-01 | | | | 4,50% | 5,25% | | |
| 2010-12 | | | | 4,50% | 5,25% | | |
| 2010-11 | | | | 4,50% | 5,25% | | |
| 2010-10 | | | | 4,50% | 5,25% | | |
| 2010-09 | | | | 4,50% | 5,25% | | |
| 2010-08 | | | | 4,50% | 5,25% | | |
| 2010-07 | | | | 4,50% | 5,25% | | |
| 2010-05 | | | | 4,50%▼ | 5,25% | | |
| 2010-04 | | | | 4,75%▼ | 5,25%▼ | | |
| 2010-03 | | | | 5,75% | 6,75% | | |
| 2010-02 | | | | 5,75% | 6,75% | | |
| 2010-01 | | | | 5,75% | 6,75% | | |
| 2009-12 | | | | 5,75% | 6,75% | | |
| 2009-11 | | | | 5,75% | 6,75% | | |
| 2009-10 | | | | 5,75% | 6,75% | | |
| 2009-09 | | | | 5,75% | 6,75% | | |
| 2009-08 | | | | 5,75%▼ | 6,75%▼ | | |
| 2009-07 | | | | 6,00%▼ | 7,00% | | |
| 2009-06 | | | | 6,50% | 7,00% | | |
| 2009-05 | | | | 6,50% | 7,00% | | |
| 2009-04 | | | | 6,50% | 7,00% | | |
| 2009-03 | | | | 6,50%▲ | 7,00%▲ | | |
| 2009-02 | | | | 6,00%▼ | 6,50%▼ | | |
| 2009-01 | | | | 6,50%▼ | 7,00%▼ | | |
| 2008-12 | | | | 7,00% | 7,50% | | |
| 2008-11 | | | | 7,00%▲ | 7,50%▲ | | |
| 2008-10 | | | | 6,30%▼ | 7,00%▼ | | |
| 2008-09 | | | | 7,00% | 7,25% | | |
| 2008-08 | | | | 7,00% | 7,25% | | |
| 2008-07 | | | | 7,00%▲ | 7,25%▲ | | |
| 2008-06 | | | | 6,75%▲ | 7,00%▲ | | |
| 2008-05 | | | | 6,50% | 6,75% | | |
| 2008-04 | | | | 6,50%▲ | 6,75% | | |
| 2008-03 | | | | 6,25%▲ | 6,75%▲ | | |
| 2008-02 | | | | 6,00%▼ | 6,50%▼ | | |
| 2008-01 | | | | 6,25%▲ | 6,75% | | |
| 2007-12 | | | | 6,00%▲ | 6,75%▲ | | |
| 2007-11 | | | | 5,50% | 6,50% | | |
| 2007-10 | | | | 5,50% | 6,50% | | |
| 2007-09 | | | | 5,50%▲ | 6,50%▲ | | |
| 2007-08 | | | | 5,00% | 6,00% | | |
| 2007-07 | | | | 5,00%▲ | 6,00%▲ | | |
| 2007-06 | | | | 4,50% | 5,75% | | |
| 2007-05 | | | | 4,50% | 5,75% | | |
| 2007-04 | | | | 4,50% | 5,75% | | |
| 2007-03 | | | | 4,50% | 5,75% | | |
| 2007-02 | | | | 4,50% | 5,75%▲ | | |
| 2007-01 | | | | 4,50% | 5,50% | | |
| 2006-12 | | | | 4,50%▼ | 5,50% | | |
| 2006-11 | | | | 5,00% | 5,50% | | |
| 2006-10 | | | | 5,00% | 5,50% | | |
| 2006-09 | | | | 5,00%▲ | 5,50% | | |
| 2006-08 | | | | 4,80%▼ | 5,50% | | |
| 2006-07 | | | | 5,00%▲ | 5,50%▲ | | |
| 2006-06 | | | | 4,75%▲ | 5,25%▲ | | |
| 2006-05 | | | | 4,50%▲ | 4,75% | | |
| 2006-04 | | | | 4,25%▲ | 4,75%▲ | | |
| 2006-03 | | | | 4,00%▼ | 4,50%▼ | | |
| 2006-02 | | | | 4,50%▼ | 4,75%▼ | | |
| 2006-01 | | | | 4,75% | 5,00% | | |
| 2005-12 | | | | 4,75%▲ | 5,00%▲ | | |
| 2005-11 | | | | 4,25% | 4,50% | | |
| 2005-10 | | | | 4,25%▼ | 4,50%▼ | | |
| 2005-09 | | | | 4,50% | 5,00%▲ | | |
| 2005-08 | | | | 4,50%▼ | 4,75%▼ | | |
| 2005-07 | | | | 4,75%▼ | 5,00%▼ | | |
| 2005-06 | | | | 5,20%▼ | 5,50%▼ | | |
| 2005-05 | | | | 5,40% | 6,00% | | |
| 2005-04 | | | | 5,40%▼ | 6,00% | | |
| 2005-03 | | | | 5,70%▼ | 6,00%▼ | | |
| 2005-02 | | | | 6,50% | 7,00% | | |
| 2005-01 | | | | 6,50%▼ | 7,00%▼ | | |
| 2004-12 | | | | 6,70%▼ | 7,10% | | |
| 2004-11 | | | | 6,90%▼ | 7,10% | | |
| 2004-10 | | | | 7,00% | 7,10% | | |
| 2004-09 | | | | 7,00% | | | |
| 2004-08 | | | | 7,00%▲ | | | |
| 2004-07 | | | | 6,90%▲ | | | |
| 2004-06 | | | | 6,80%▲ | | | |
| 2004-05 | | | | 6,50%▲ | | | |
| 2004-04 | | | | 6,20% | | | |
| 2004-03 | | | | 6,20% | | | |
| 2004-02 | | | | 6,20%▲ | | | |
| 2004-01 | | | | 6,10%▲ | | | |
| 2003-12 | | | | 5,80%▲ | | | |
| 2003-11 | | | | 5,30%▲ | | | |
| 2003-10 | | | | 5,00% | | | |
| 2003-09 | | | | 5,00%▼ | | | |
| 2003-08 | | | | 5,30% | | | |