I Bond buying guide for 2026: Wait it out

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By David Enna, Tipswatch.com

Last January, Series I Savings Bonds offered a fixed rate of 1.20% and had a lot of appeal. A year later, that fixed rate has fallen to 0.90%. Are I Bonds still relevant for investors seeking safety and protection against unexpected inflation?

Yes, I’d say they remain relevant and still attractive at a time when short-term interest rates are declining. The current composite rate is 4.03%, up from 3.11% last January. That is better than the 13-week Treasury yield of about 3.70%.

This year, however, the I Bond purchase equation is a little complicated. Instead of loading up in January, I am recommending holding off until later in the year. But first …

The basics

  • The fixed rate of an I Bond will never change. Purchases through April 30, 2026, will have a fixed rate of 0.90%, which means the return will exceed official U.S. inflation by 0.9% until the I Bond is redeemed or matures in 30 years.
  • The inflation-adjusted rate (often called the I Bond’s variable rate) changes each six months to reflect the running rate of inflation. That rate is currently 3.12%, annualized, for six months. It will adjust again on May 1, 2026, rolling into effect for all I Bonds, no matter when they were purchased.
  • The current composite rate is 4.03% annualized for six months for purchases through April 2026.

I Bonds are an extremely safe and conservative investment. Interest accrues monthly and principal can never decline, even in times of deflation. Investments are limited to $10,000 per person per calendar year for electronic I Bonds held at TreasuryDirect. There is also a “gift box” strategy some investors use to stack purchases for future years.

I Bonds are a unique investment with many positives. For example, earnings are free of state income taxes and federal taxes can be deferred until the I Bond is redeemed or matures. Also, I Bonds are a simple investment to buy and track, much simpler than a TIPS with a constantly changing market value and inflation accruals that update daily.

Looking ahead

An investor who purchases an I Bond through April 2026 will earn the composite rate of 4.03% for a full six months, no matter the month of purchase. After that, the fixed rate will remain at 0.90% but the composite rate will change. So what’s ahead?

Future fixed rate. Although the U.S. Treasury does not reveal its formula for determining the I Bond’s fixed rate, we know Treasury tracks trends in real yields and adjusts accordingly. This forecasting formula has worked for the last decade: Take the average real yield of the 5-year TIPS over the preceding six months and apply a ratio of 0.65.

The next rate reset will come May 1, so we are interested in real yields from November 2025 to April 2026. So far, we are less than three months into that period, but here are the current results:

At this point, the projection points to the I Bond fixed rate remaining at 0.90% at the May reset. But a lot can change in the next three months, especially if the Federal Reserve moves to cut short-term interest rates in the meantime.

Variable rate. We are just getting out of a period of chaotic statistical information from the U.S. government, caused by last year’s government shutdown. No inflation data were collected in October and November’s numbers were suspect, especially in the way housing data were reported. The result was a very sharp drop in November’s non-seasonally adjusted inflation, down 0.46% for the month.

The I Bond’s next variable rate will be set based on non-seasonally adjusted inflation for the months of October 2025 through March 2026. Three months into that period, we’ve had deflation of 0.23%, which would translate to a variable rate of -0.46% at this point.

This negative number is going to turn around in the months of January to March and will very likely end up positive. Non-seasonally adjusted inflation runs higher than headline inflation at the beginning of the year. But how much of an increase can we expect? The last three years give us an idea:

  • In December 2024, 3-month inflation was only 0.11%. By March that increased to 1.43%, setting the variable rate 2.86%.
  • In December 2023, 3-month inflation was -0.34%. By March it increased to 1.48%, setting the variable rate at 2.96%.
  • In December 2022, 3-month inflation was 0.0%. By March it increased to 1.69%, setting the variable rate at 3.38%.

Conservatively, I’d say expect six-month inflation of at least 1.00%, which would result in a variable rate of 2.00%.

Composite rate. If the fixed rate holds at 0.90% and the variable rate drops to 2.00%, you’d get a new composite rate of 2.91%, well below the current rate of 4.03%. Again, I emphasize that this is a conservative estimate.

In this conservative scenario, an I Bond purchase any time through April 2026 will earn 4.03% for six months and then 2.91% for six months, for a combined annual return of about 3.47%.

When to act

There is no reason to jump aboard an I Bond investment in January 2026. You can get that 0.90% fixed rate and the six-month composite of 4.03% anytime through April 2026. So just be patient.

First buying window. This will come after the March inflation report is issued on April 10, 2026. That report will lock in the I Bond’s new variable rate, and we will have a much better idea of the potential fixed-rate reset coming May 1. You will have more than two weeks to decide: Buy in April, buy in May or continue waiting?

If the fixed rate looks likely to fall, I would be a buyer in April, no matter what the six-month variable rate will be. The fixed rate is permanent and is much more important for anyone planning to hold for five years or longer.

Second buying window. The second decision period will come after the September inflation report is issued October 14, 2026. Again, at that point you will know with certainty the next variable rate — to be reset November 1 — and have a good idea of the next fixed rate.

Most likely, I will be buying in April. Still, waiting is the best action right now.

Short-term investment?

The current composite rate of 4.03% certainly looks attractive when you compare it to the nominal yields of a 4-week (3.75%) or 1-year (3.53%) T-bill. But remember than you have to hold an I Bond for one year and if you redeem at that point you lose the latest three months of interest.

The answer is no. My conservative scenario had a one-year I Bond return of 3.47%, but that would drop to about 2.74% if you subtract the last three months of interest. If you are looking for a one-year investment, just buy the 1-year T-bill at 3.53%.

I Bond versus TIPS

A five-year TIPS currently has a real yield of about 1.38%, a lofty 48 basis points higher than the I Bond. These are comparable investments, since the I Bond can be redeemed without penalty after five years. For pure yield, the TIPS is the better investment. The I Bond has advantages of tax-deferred interest, flexible maturity and rock-solid deflation protection.

I invest in both, but use TIPS for pushing forward specific inflation-protected spending levels into the future. I use I Bonds as a secondary emergency cash reserve, constantly protected against inflation.

The rollover strategy

If you are holding I Bonds with 0.0% fixed rates, you are currently earning a composite rate of 3.12%, but that could fall to as low as 2.0% (or lower) later this year. You could redeem some of those to raise cash to buy I Bonds with a 0.9% fixed rate.

I generally encourage people to continue holding I Bonds “until you need the cash.” It’s great to have these savings bonds growing tax-deferred with zero risk. But this strategy of rolling over 0.0% I Bonds for a 0.9% fixed rate makes sense.

You will owe federal income taxes on the interest earned, and if your withdrawal is more than $10,000 (because of earned interest) you’ll only be able to buy $10,000 in new I Bonds in 2026. And if you held the I Bond less than 5 years, you will get hit with the three-month interest penalty.

The rollover strategy especially makes sense for people who are retired and have no way to raise cash for an I Bond purchase without selling an asset or withdrawing IRA money, both creating tax hits.

Reminder: When you redeem an I Bond, you earn zero interest for the month of that transaction. So the best idea is to redeem early in the month, like January 2 or April 2. Then, purchase I Bonds late in the month, because they will earn that full month of interest. For short-term investors, this can cut the holding period to very close to 11 months.

Thoughts

Despite the decent fixed rate of 0.90%, I suspect there won’t be rabid interest in I Bonds this year. But that could change if short- and longer-term Treasury rates begin falling. That 0.90% will be there through April, just waiting for your decision.

Most likely, I will be investing in I Bonds in 2026, possibly in April and probably rolling over some lower-fixed-rate I Bonds to raise the cash.

What do you think? Will you be investing in I Bonds in 2026? Or have you set plans for other (preferably safe) investments? Post your thoughts in the comments section.

Confused by I Bonds? Read my Q&A on I Bonds

Let’s ‘try’ to clarify how an I Bond’s interest is calculated

Inflation and I Bonds: Track the variable rate changes

I Bonds: Here’s a simple way to track current value

I Bond Manifesto: How this investment can work as an emergency fund

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Feel free to post comments or questions below. If it is your first-ever comment, it will have to wait for moderation. After that, your comments will automatically appear. Please stay on topic and avoid political tirades. NOTE: Comment threads can only be three responses deep. If you see that you cannot respond, create a new comment and reference the topic.

David Enna is a financial journalist, not a financial adviser. He is not selling or profiting from any investment discussed. I Bonds and TIPS are not “get rich” investments; they are best used for capital preservation and inflation protection. They can be purchased through the Treasury or other providers without fees, commissions or carrying charges. Please do your own research before investing.

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About Tipswatch

Author of Tipswatch.com blog, David Enna is a long-time journalist based in Charlotte, N.C. A past winner of two Society of American Business Editors and Writers awards, he has written on real estate and home finance, and was a founding editor of The Charlotte Observer's website.
This entry was posted in Cash alternatives, I Bond, Investing in TIPS, Savings Bond, Treasury Bills, TreasuryDirect and tagged , , . Bookmark the permalink.

12 Responses to I Bond buying guide for 2026: Wait it out

  1. drmattnyc's avatar drmattnyc says:

    David thank you for the thoughtful discussion of I bonds, of which I hold a large allocation (no TIPS). The long delays at Treasury Direct are concerning and raise the question of whether to abandon the platform in favor of a low cost brokerage like Vanguard. Especially as we all age and become more likely to experience some cognitive decline, dealing with an understaffed government agency, parsing information about interest rates, and accepting long waits is ever more formidable.

    I am still working and have habitually bought the full allocation of I-bonds and EE bonds (almost) every January. The reason is the long period of delayed gratification that savings bonds require. You have to wait one year before the funds would be accessible for withdrawal. You have to wait five years to avoid the 3 month interest penalty. In the case of EE bonds you have to wait 20 years before the original investment doubles. And finally, savings bonds benefit from compounded interest, which amplifies the benefit of holding these vehicles over long periods of time. So I say, let’s start the clock as soon as we can!

  2. TipswatchChat's avatar TipswatchChat says:

    Reader comments in this and previous Tipswatch threads, expressing some misgivings about I Bonds and TIPS (and I have been among them) have focused on the almost incomprehensible size of the national debt, and on whether BLS “inflation” statistics are reliable, or are on the verge of becoming unreliable, or, if about to manipulated, will recover their reliability under an administration less inclined to torment “facts” to fit predetermined political goals.

    There’s another thing about I Bonds that bothers me, even though my wife and I own a very substantial quantity of them: the absurd amount of time it takes to accomplish any account action requiring involvement of a human employee at understaffed TreasuryDirect.

    In May 2025, we filed the paperwork to have 2024 purchases in our individual accounts transferred to our joint trust account. (We have multiple accounts to expand the dollar amount of I Bonds we can buy in years when we have the cash and inclination to do so.) It’s now January 2026, and we’re still waiting for those May 2025 transfer requests to be accomplished. . . . In November 2025, we filed the paperwork to have our 2025 individual account purchases transferred to the joint trust account, and also called TreasuryDirect to check on the status of the still-pending May 2025 request. The TreasuryDirect employee told us the earlier request was still in queue, “awaiting review.” She also said that the wait time is getting worse, not better, and that we should expect our November 2025 request to take a full year.

    We’re not in any hurry to do anything else with these I Bonds, but my concern is this: I pity the executor of our estate, the settlement of which will be held up indefinitely while waiting on TreasuryDirect. And indeed, over on the Bogleheads forum, I’ve read other people’s stories confirming that problem, and citing it as a reason for the commenter’s avoidance of TreasuryDirect.

    Sometimes we think of just giving up on I Bonds, liquidating the holdings, and focusing on TIPS held in Roth IRAs, where the existence of the holdings is clearly listed on a brokerage company statement (no need to print our own TreasuryDirect inventories to “prove” the existence of the portolio); where tax statements are issued predictably (no need to go on TreasuryDirect to print our own forms 1099); and where the securities themselves can be quickly sold at brokerage on any business day [insert sound of executor breathing sigh of relief and prayerful thanks].

    And yet . . . I Bonds have certain advantages of their own. And we’ll be dead and gone when the executor has to deal with TreasuryDirect, i.e., it won’t be “our problem.” Which is only faint comfort. 🙂

    Will welcome comment from David or any other readers with similar concerns.

    • Harold's avatar Harold says:

      There may be some folks on this chat that have dealt with estate issues and TD. As I have aged, I have tried to simplify my finances. TD is not part of simplification. I made a comment in this thread that I am exiting as my bonds mature. I went through the process you mention several years ago and it was painful. I also did paper bond conversions years before. We got it done but it was not easy. At the time I made the I-bond investments, I could use a credit card and buy a lot more bonds than you can now. Those deals worked well. I hope my exit (over the next 7 years) is successful. For a few basis points, I would go with tradeable securities instead of TD/I-bonds for future investments.

  3. Harold's avatar Harold says:

    Thanks for the review. I’m planning to start my I-bond liquidation this year as I have a large holding of bonds maturing in 2030 and 2033. I saw where you had a similar issue and you spread the tax pain over 4 years. Seems like a good plan so I will take 25% of the 2030 this year. Always worried about the direction TD is going and lack of transparency on rate but they have worked out well so far!

  4. Thank you for all the excellent info. Another thing to consider and plan for is that the 10 Year US Treasury Inflation Index TIPS will REOPEN—03/12/2026-03/19/2026.

    I also wonder what if any changes to the I Bonds program will happen in 2026?

    Seize the Day and minimize future regrets.

  5. David Shannon's avatar David Shannon says:

    My wife and I had been planning to reach a couple hundred thousand dollars in ibonds in five years when we reach 75 and target that money for long term healthcare.  While it won’t last long if both of us end up in nursing homes it would provide a reasonable amount of care for one or both of us especially if we get can by with home care.  We took this approach to avoid the cost of long-term care insurance policies.  If we need it, we have a reserve of inflation protected funds available to us with the benefit that medical expense tax deductions will most likely offset federal tax on the iBond’s interest.  If we don’t need it then it becomes part of the estate and the kids can deal with Treasury Direct.  We are concerned with the changes at BLS and the latest CPI data and will be monitoring to see if this approach keeps close to the rise in long term care costs.

  6. uukj's avatar uukj says:

    I don’t think it is safe to assume that statistical disruptions have ended as another [partial] shutdown could start next Friday in response to the latest ICE shooting.

    https://wapo.st/3LBe9om

    • Tipswatch's avatar Tipswatch says:

      My strong belief is that the Bureau of Labor Statistics should be fully funded, immediately. Do not let our statistical fog turn into a hurricane.

      • uukj's avatar uukj says:

        That could happen. If there is another shutdown, it might be more surgical, i.e., limited to DHS/ICE. Right now, however, the DOL appropriation is in the same package (so-called Minibus bill) that the Senate Democrats have said they will block. We will have to see.

  7. Ann's avatar Ann says:

    Thanks for this, David! In reviewing my holdings prior to the TIPS auction, I wondered whether in these chaotic times it made sense to have more than 20% of my liquid assets in US govt obligations. Since I am definitely in the category of a “senior citizen”, and my heirs will likely dump everything, I decided not to buy at the auction. Given the way TD operates, it will take them longer to dump the I Bonds, but they will presumably continue to accrue their expected earnings. My current plan is to buy later in the year if the fixed interest rises to at least 1%.

  8. Jeff's avatar Jeff says:

    Do you put much faith in the market forecasts for the 5-year TIPS real yield? Currently they project a significant increase over the next few months, which could impact the I Bond fixed rate. I have no idea what the track record of these forecasts is.

    • Tipswatch's avatar Tipswatch says:

      My thinking is that the 5-year real yield could hold steady, or decline if the Fed actually cuts short-term rates. But most likely those cuts will come later in the year, too late to effect the equation through April. If you are seeing forecasts that project a much higher 5-year real yields, send me a link. I’d love to look those over.

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