$500 I Bond with 0.50% Fixed Rate Purchased March 2019

 Jan
1
Feb
1
Mar
1
Infla
tion
Rate
Com
posite
Rate
Apr
1
May
1
Jun
1
Jul
1
Aug
1
Sep
1
Infla
tion
Rate
Com
posite
Rate
Oct
1
Nov
1
Dec
1
2019 500.001.16%2.83%501.20502.40503.60504.80505.80507.000.70%1.90%507.80508.60509.402019
2020510.20511.00511.801.01%2.53%512.80514.00515.00516.20517.20518.200.53%1.56%518.80519.60520.202020
2021520.80521.60522.200.84%2.18%523.20524.00525.00526.00527.00527.801.77%4.05%529.60531.40533.202021
2022535.00536.60538.403.56%7.64%541.80545.20548.60552.00555.40559.004.81%10.14%563.60568.20573.002022
2023577.80582.60587.403.24%7.00%590.80594.20597.60601.00604.40608.001.69%3.89%610.00612.00613.802023
2024615.80617.80619.801.97%4.45%622.00624.40626.60629.00631.20633.601.48%3.47%635.40637.20639.002024
2025641.00642.80644.600.95%2.40%645.80647.20648.40649.80651.00652.401.43%3.37%654.20656.00657.802025
2026659.80661.60663.401.56%3.63%665.40667.40669.40671.40673.40675.40

From $500.00 to $675.40 over 7.5 years = 4.05% average annual increase compounded semi-annually.

Generated  11/04/25  09:11