$5,000 I Bond with 1.40% Fixed Rate Purchased January 2027

 Jan
1
Infla
tion
Rate
Com
posite
Rate
Feb
1
Mar
1
Apr
1
May
1
Jun
1
Jul
1
Infla
tion
Rate
Com
posite
Rate
Aug
1
Sep
1
Oct
1
Nov
1
Dec
1
20275,0002.04%5.51%5,0225,0465,0685,0925,1145,138

From $5,000 to $5,138 over 0.5 years = 5.52% average annual increase compounded semi-annually.

Generated  10/30/26  15:03