New Series I Bond Rate for November 2023 – May 2024: 5.27%

This article has been updated to reflect the current new Series I bond rates for November, 2023 to May, 2024 period. The new I bond rate has been set at a composite 5.27% (up from a 4.30% APR in the prior 6-month period). This is a decent rate and higher than when I first purchased I bonds and wrote about them in my I bond overview. You can buy I Bonds online at the current 5.27% rate through the end of April, 2024 and you will get that rate for a 6-month period from the date of purchase. If, instead, you think there are better alternatives to keeping your money in I bonds, I’ve covered how to cash out I bonds and the considerations that one may want to take into account.

I bonds had exploded in popularity in recent years as they are a very safe investment that have offered a strong guaranteed rate of return from the U.S. Treasury. Comparatively safe bank investments, meanwhile, were offering paltry interest rates until late 2022. That has changed, but there is no telling what the future holds. I bonds are designed to adjust to inflation rates.

current I Bond rate

What is the Newest Current I Bond Rate?

I bond interest rates are a combination of a fixed rate (which you get for the life of the bond) and a variable rate that changes every 6 months. Fixed and variable rates are announced every 6 months (on May 1 and November 1). The current I bond rate for bonds issues between November 1, 2023 and May 1, 2024 is 5.27%. This consists of a fixed rate of 1.30% and a variable rate of 3.97%. The next new rate will go into effect May 1, 2024.

How Long is the 3.97% Variable I Bond Rate Good For?

You receive the I bond variable rate for 6 months from the date of issue. Rates are compounded semiannually. For example, an I bond purchased in December of 2023 would get the 3.97% APR variable rate until June of 2024, at which point the variable rate would switch to the April, 2024 variable rate for the subsequent 6 months (in addition to the 1.30% fixed rate). The next variable rate change for that bond would be December, 2024, when the May, 2024 rate would kick in for 6 months.

Here’s a chart to help explain:

I Bond Month of IssueNew Rates Take Effect
JanuaryJanuary 1 & July 1
FebruaryFebruary 1 & August 1
MarchMarch 1 & September 1
AprilApril 1 & October 1
MayMay 1 & November 1
JuneJune 1 & December 1
JulyJuly 1 & January 1
AugustAugust 1 & February 1
SeptemberSeptember 1 & March 1
OctoberOctober 1 & April 1
NovemberNovember 1 & May 1
DecemberDecember 1 & June 1

How Much I Bonds Can you Buy Per Calendar Year?

The amount of I bonds you can purchase in a calendar year depends on how you purchase them:

  1. Individuals (at can buy $10,000 per calendar year, per account holder, in digital I bonds through the U.S. Department of Treasury at Individuals with a Social Security number can have 1 account each. Must be 18+ to buy.
  2. Individuals (Tax Return): can buy up to $5,000 per Social Security number in literal paper bonds through the IRS as a form of tax refund payment using IRS Form 8888 (joint filers can purchase for each of the 2 filers) when you submit your tax return.
  3. Living Trust (at living trusts can purchase up to $10,000 per year through the name of the trust. This is definitely a more complicated option, but good to be aware of.

So, hypothetically, an individual could buy up to $15,000 per calendar year in I bonds, or a couple could buy up to $30,000 per year. Buying through a trust would open up an additional $10,000 per trust.

Is There an Early Withdrawal Penalty for I Bonds?

What if you need to access funds immediately, for whatever reason, or future I Bond rates go up and you want to cash out and buy new I Bonds? Here’s a breakdown:

  • I bonds have a 30 year expiry from the date of purchase.
  • I bonds must be held for a minimum of one year.
  • If an issue is held for less than 5 years (but more than 1 year), the holder can cash in their issue, but will forfeit the most recent 3 months of interest returns as a penalty.

Should I Invest in I Bonds?

I have invested in I bonds while their rates far exceeded the rates of comparable investments (e.g. money market accounts, CDs, savings deposits). With those rates having declined and comparable investments having increased, I’m now taking a wait-and-see approach to new I bond purchases. I’d like to see what happens with inflation and I bond and other interest rates. As always, do your research and make a decision for yourself, based on your own personal financial situation.