$500 I Bond with 0.50% Fixed Rate Purchased September 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 500.000.70%1.90%500.80501.60502.402019
2020503.20504.00504.801.01%2.53%505.80507.00508.00509.00510.20511.200.53%1.56%511.80512.60513.202020
2021513.80514.60515.200.84%2.18%516.20517.00518.00519.00519.80520.801.77%4.05%522.60524.20526.002021
2022527.80529.60531.403.56%7.64%534.80538.00541.40544.80548.20551.604.81%10.14%556.20560.80565.402022
2023570.00574.80579.603.24%7.00%583.00586.20589.60593.00596.40599.801.69%3.89%601.80603.60605.602023
2024607.60609.60611.401.97%4.45%613.60616.00618.20620.40622.80625.001.48%3.47%626.80628.60630.402024
2025632.20634.00635.800.95%2.40%637.00638.40639.60640.80642.20643.401.43%3.37%645.20647.00648.802025
2026650.60652.40654.201.56%3.63%656.20658.20660.20662.00664.00666.00

From $500.00 to $666.00 over 7.0 years = 4.14% average annual increase compounded semi-annually.

Generated  11/04/25  09:11