$10,000 I Bond with 1.10% Fixed Rate Purchased June 2025

 Infla
tion
Rate
Com
posite
Rate
Jan
1
Feb
1
Mar
1
Apr
1
May
1
Jun
1
Infla
tion
Rate
Com
posite
Rate
Jul
1
Aug
1
Sep
1
Oct
1
Nov
1
Dec
1
2025 10,0001.43%3.98%10,03210,06410,10010,13210,16410,2002025
20261.56%4.24%10,23610,27210,30810,34410,38010,4161.67%4.46%10,45610,49210,53210,57210,60810,6482026

From $10,000 to $10,648 over 1.5 years = 4.23% average annual increase compounded semi-annually.

Generated  05/01/26  08:02