$500 I Bond with 1.20% Fixed Rate Purchased September 2005

 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
2005 500.001.79%4.80%502.00504.00506.002005
2006508.00510.00512.002.85%6.93%515.00517.80520.80523.80526.80529.800.50%2.21%530.80531.80532.802006
2007533.60534.60535.601.55%4.32%537.60539.40541.40543.20545.20547.201.21%3.63%548.80550.40552.202007
2008553.80555.40557.201.53%4.28%559.20561.20563.20565.20567.20569.202.42%6.07%572.00575.00577.802008
2009580.60583.60586.402.46%6.15%589.40592.40595.40598.40601.40604.40-2.78%0.00%604.40604.40604.402009
2010604.40604.40604.401.53%4.28%606.60608.60610.80613.00615.20617.400.77%2.75%618.80620.20621.602010
2011623.00624.40625.800.37%1.94%626.80627.80628.80629.80630.80631.802.30%5.83%634.80637.80641.002011
2012644.00647.20650.201.53%4.28%652.40654.80657.20659.40661.80664.201.10%3.41%666.00668.00669.802012
2013671.80673.60675.600.88%2.97%677.20679.00680.60682.20684.00685.600.59%2.39%687.00688.40689.602013
2014691.00692.40693.800.59%2.39%695.20696.60698.00699.40700.80702.000.92%3.05%703.80705.60707.402014
2015709.20711.00712.800.74%2.69%714.40716.00717.60719.20720.80722.40-0.80%0.00%722.40722.40722.402015
2016722.40722.40722.400.77%2.75%724.00725.60727.40729.00730.60732.400.08%1.36%733.20734.00734.802016
2017735.80736.60737.401.38%3.98%739.80742.20744.80747.20749.60752.000.98%3.17%754.00756.00758.002017
2018760.00762.00764.001.24%3.69%766.40768.60771.00773.40775.80778.001.11%3.43%780.20782.40784.602018
2019786.80789.20791.401.16%3.53%793.80796.00798.40800.60803.00805.400.70%2.61%807.20808.80810.602019
2020812.40814.20816.001.01%3.23%818.20820.40822.60824.80827.00829.200.53%2.27%830.80832.40833.802020
2021835.40837.00838.600.84%2.89%840.60842.60844.60846.60848.60850.801.77%4.76%854.20857.40860.802021
2022864.20867.60871.003.56%8.36%877.00883.00889.00895.20901.20907.404.81%10.88%915.40923.60931.802022
2023940.00948.40956.803.24%7.72%962.80969.00975.00981.20987.40993.801.69%4.60%997.601,001.401,005.202023
20241,009.001,012.801,016.601.97%5.16%1,021.001,025.201,029.601,034.001,038.401,042.801.48%4.18%1,046.401,050.001,053.602024
20251,057.201,061.001,064.600.95%3.11%1,067.401,070.001,072.801,075.601,078.401,081.201.43%4.08%1,084.801,088.601,092.202025
20261,095.801,099.601,103.201.56%4.34%1,107.201,111.201,115.201,119.201,123.201,127.20

From $500.00 to $1,127.20 over 21.0 years = 3.91% average annual increase compounded semi-annually.

Generated  11/04/25  09:10