---
kind: "section"
citation: "31 C.F.R. § 359.39"
title: "31"
number: "359.39"
heading: "How are redemption values calculated for definitive Series I savings bonds?"
url: "https://uscodex.org/cfr/31/359.39"
---

# §359.39. How are redemption values calculated for definitive Series I savings bonds?


We determine the redemption value of a definitive savings bonds for the accrual date (the first day of each month) by first determining the composite rate as defined in [§ 359.13](/cfr/31/359.13.md). If the result of the composite rate calculation is a negative value, zero will be the assumed composite rate in the redemption value calculation. Redemption values are calculated using the following formula (For examples of the calculation, see appendix A to [part 359](/cfr/31/part359.md)):


## Notes

### Authority

Authority: 5 U.S.C. 301; 12 U.S.C. 391; 31 U.S.C. 3105.

### Source

Source: 67 FR 64278, Oct. 17, 2002, unless otherwise noted.