{"data":{"id":"us/31-cfr-359.14","jurisdiction":"us","citation":"31 CFR 359.14","heading":"How are composite rates determined?","body":"Composite rates are set according to the following formula (See appendix A to part 359 for examples of calculations involving composite interest rates.):\nComposite rate = {(Fixed rate ÷ 2) + Semiannual inflation rate + [Semiannual inflation rate × (Fixed rate ÷ 2)]} × 2. 2","path":["Title 31—Money and Finance: Treasury","Subtitle B—Regulations Relating to Money and Finance","CHAPTER II—FISCAL SERVICE, DEPARTMENT OF THE TREASURY","SUBCHAPTER A—BUREAU OF THE FISCAL SERVICE","PART 359—OFFERING OF UNITED STATES SAVINGS BONDS, SERIES I","Subpart A—General Information"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-31.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:25Z","sha256":"21c3b7e3e4bb06b984abeba9619d569da045b77ff6219ba20ae95d20789e98eb","source_id":"us-cfr","stale":true,"prev":"us/31-cfr-359.13","next":"us/31-cfr-359.15"},"notice":"GroundRules: Original legal text. Not legal advice."}