I Bond Value — September 1999
A $1,000.00 I Bond issued in September 1999 is worth $4,789.60 today.
Current total value
$4,789.60
Redemption value (incl. penalty)
$4,789.60
Current composite rate
6.47%
Interest earned to date
$3,789.60
About this September 1999 I Bond
This Series I savings bond was issued in September 1999 and locked in a fixed rate of 3.30% for the life of the bond. It has earned interest for 26 years, 9 months, and its inflation component resets every six months. It is currently earning a composite rate of 6.47%.
This bond is more than five years old, so there is no early-redemption penalty: its redemption value equals its full value of $4,789.60.
Semiannual value table
Value of this $1,000.00 I Bond at the start of each six-month earning period since issue.
| Period start | Composite rate | Value | Value after penalty |
|---|---|---|---|
| September 1999 | 5.05% | $1,000.00 | $1,000.00 |
| March 2000 | 6.88% | $1,025.20 | $1,012.40 |
| September 2000 | 7.18% | $1,060.40 | $1,042.80 |
| March 2001 | 6.39% | $1,098.40 | $1,079.20 |
| September 2001 | 6.23% | $1,133.60 | $1,116.00 |
| March 2002 | 5.72% | $1,168.80 | $1,151.20 |
| September 2002 | 3.87% | $1,202.40 | $1,185.20 |
| March 2003 | 5.80% | $1,225.60 | $1,214.00 |
| September 2003 | 6.90% | $1,261.20 | $1,243.20 |
| March 2004 | 4.40% | $1,304.80 | $1,282.80 |
| September 2004 | 5.72% | $1,333.60 | $1,333.60 |
| March 2005 | 6.00% | $1,371.60 | $1,371.60 |
| September 2005 | 6.94% | $1,412.80 | $1,412.80 |
| March 2006 | 9.09% | $1,462.00 | $1,462.00 |
| September 2006 | 4.32% | $1,528.40 | $1,528.40 |
| March 2007 | 6.45% | $1,561.60 | $1,561.60 |
| September 2007 | 5.76% | $1,612.00 | $1,612.00 |
| March 2008 | 6.41% | $1,658.40 | $1,658.40 |
| September 2008 | 8.22% | $1,711.60 | $1,711.60 |
| March 2009 | 8.30% | $1,782.00 | $1,782.00 |
| September 2009 | 0.00% | $1,856.00 | $1,856.00 |
| March 2010 | 6.41% | $1,856.00 | $1,856.00 |
| September 2010 | 4.87% | $1,915.60 | $1,915.60 |
| March 2011 | 4.05% | $1,962.40 | $1,962.40 |
| September 2011 | 7.98% | $2,002.00 | $2,002.00 |
| March 2012 | 6.41% | $2,082.00 | $2,082.00 |
| September 2012 | 5.54% | $2,148.80 | $2,148.80 |
| March 2013 | 5.09% | $2,208.40 | $2,208.40 |
| September 2013 | 4.50% | $2,264.80 | $2,264.80 |
| March 2014 | 4.50% | $2,315.60 | $2,315.60 |
| September 2014 | 5.17% | $2,367.60 | $2,367.60 |
| March 2015 | 4.80% | $2,428.80 | $2,428.80 |
| September 2015 | 1.67% | $2,487.20 | $2,487.20 |
| March 2016 | 4.87% | $2,508.00 | $2,508.00 |
| September 2016 | 3.46% | $2,569.20 | $2,569.20 |
| March 2017 | 6.11% | $2,613.60 | $2,613.60 |
| September 2017 | 5.29% | $2,693.60 | $2,693.60 |
| March 2018 | 5.82% | $2,764.80 | $2,764.80 |
| September 2018 | 5.56% | $2,845.20 | $2,845.20 |
| March 2019 | 5.66% | $2,924.40 | $2,924.40 |
| September 2019 | 4.72% | $3,007.20 | $3,007.20 |
| March 2020 | 5.35% | $3,078.00 | $3,078.00 |
| September 2020 | 4.38% | $3,160.40 | $3,160.40 |
| March 2021 | 5.01% | $3,229.60 | $3,229.60 |
| September 2021 | 6.90% | $3,310.40 | $3,310.40 |
| March 2022 | 10.54% | $3,424.80 | $3,424.80 |
| September 2022 | 13.08% | $3,605.20 | $3,605.20 |
| March 2023 | 9.89% | $3,840.80 | $3,840.80 |
| September 2023 | 6.74% | $4,030.80 | $4,030.80 |
| March 2024 | 7.31% | $4,166.80 | $4,166.80 |
| September 2024 | 6.31% | $4,319.20 | $4,319.20 |
| March 2025 | 5.23% | $4,455.60 | $4,455.60 |
| September 2025 | 6.21% | $4,572.00 | $4,572.00 |
| March 2026 | 6.47% | $4,714.00 | $4,714.00 |
Other amounts for September 1999
Check your own numbers
Want to value a different amount or date? Open the calculator prefilled for this September 1999 bond, or browse every issue month.