I-Bond Rate Reset November 2026: Buy, Skip, or Wait

Every six months, I Bond buyers face the same small drama. The Treasury announces new rates on May 1 and November 1, and savers who pay attention can pick the better side of the line. Most resets are boring. This one is not, because half the answer is already public and it is a big move.

The inflation half of the November rate is set in stone. September CPI data closed the book on April to September 2026 inflation at 2.04 percent for the six months, which converts to a 4.08 percent annualized variable rate. That is up from 3.34 percent today. The other half, the fixed rate, is the Treasury's call, and the best independent forecaster of that number expects a jump too, from 0.90 percent to about 1.30 percent. Put together, a bond bought in November could pay around 5.4 percent, against 4.26 percent for a bond bought in October.

That gap is worth a few days of patience, but only if you understand what you are trading. The fixed rate is the part that never changes. A bond bought in November with a 1.30 percent fixed rate keeps that extra 0.40 percent every year for up to 30 years. On $10,000, that is roughly $40 a year, every year, compounding, for doing nothing except waiting a week. An October bond keeps 0.90 percent forever instead.

How an I Bond rate actually works

An I Bond's composite rate is the combination of a fixed rate that never changes for the life of the bond and a variable rate that resets every six months with inflation.

An I Bond pays you two rates at once. The fixed rate is set when you buy and stays put for the full 30-year life of the bond. The variable rate tracks inflation and resets every six months, on the anniversary of the month you bought. The Treasury blends them into one composite rate with a formula that keeps the total slightly above the simple sum of the two parts.

Here is the part that trips people up. The new variable rate does not hit every bond on November 1. It hits each bond on its own six-month schedule. A bond bought in May gets the new variable rate in November and May. A bond bought in October gets it in April and October. So an October purchase earns the current 4.26 percent composite for its first six months, then picks up the new 4.08 percent variable rate in April 2027, paired with its old 0.90 percent fixed rate. A November purchase starts with the new rates right away.

The fixed rate is where the real money hides in this reset. Variable rates come and go with inflation. If inflation cools next year, the variable rate falls for everyone, old bonds and new bonds alike. The fixed rate is the only part you lock in permanently, which is why a 0.40 point jump in the fixed rate matters more than it looks at first glance.

Where does the November forecast come from?

The variable rate is not a guess. It comes straight from the Consumer Price Index. The Bureau of Labor Statistics reported September CPI at 336.940, up 0.59 percent from August. That closed the April to September window at 2.04 percent inflation over six months, which doubles to a 4.08 percent annualized variable rate. Anyone can check this math once the CPI release is out, and Tipswatch published it the same week.

The fixed rate is a forecast, and honest forecasts say so. David Enna at Tipswatch has tracked this for years, and his method is public: take the average five-year real yield on Treasury Inflation-Protected Securities over the prior six months and apply a ratio of about 0.65. That method has matched the Treasury's actual fixed rate decisions closely for a decade. On current TIPS yields it points to at least 1.30 percent, with 1.40 percent in reach if the Treasury follows its usual pattern generously. Enna himself puts it bluntly: there is nearly zero chance the fixed rate falls below 1.30 percent if past practice holds.

Put the two halves together and the November composite lands near 5.4 percent at a 1.30 percent fixed rate, or a touch higher at 1.40 percent. Compare that with the 4.26 percent an October buyer gets, and with the roughly 4 percent top high-yield savings accounts pay right now, and the November bond looks like the best safe-money deal of the year. One caution: the Treasury announces official numbers around November 1, and until then every November figure in this article is an estimate built on published CPI data and past Treasury behavior, not an official rate.

There is also a side story worth knowing. The September inflation report also set the 2027 Social Security cost-of-living adjustment at 3.6 percent. Same CPI data, different program. If you follow retirement income at all, that number matters to your parents or your future self, and it comes from the same release that locked the I Bond variable rate.

I bond rate: buy in October or wait for November?

Assume you have $10,000 ready and you have not used your 2026 limit. Here is what each choice earns in the first year, using the forecast November numbers.

The October bond is not a bad deal. It earns 4.26 percent for six months, then roughly 5.0 percent for the next six as the new variable rate kicks in. But the November bond earns about 5.4 percent from day one and keeps a fixed rate 0.40 points higher for decades. Over 30 years on $10,000, that fixed-rate edge alone is worth well over $1,000 in extra interest, even before compounding does its quiet work.

There is one case where buying in October still wins: if you already used your 2026 limit, or if you want to buy twice. The limit resets on January 1. A saver who buys $10,000 in October and another $10,000 in January gets both the October bond and a fresh 2027 bond. But if you have one purchase to make and a free calendar, November is the better side of the line this year.

The 5 rules that decide whether I Bonds fit you

I Bonds are boring in the best way, but they have sharp edges. Run through these five rules before you move money.

Rule 1: the $10,000 annual cap. Each person can buy $10,000 in electronic I Bonds per calendar year. A couple can buy $20,000, one limit each. You can add up to $5,000 in paper bonds by directing part of a tax refund into them. If you are sitting on $100,000 in cash, I Bonds can only absorb a slice of it, so treat them as one layer of a savings plan, not the whole plan.

Rule 2: the 12-month lockup. You cannot touch the money for a full year after purchase, no exceptions for emergencies. If there is any chance you need this cash within 12 months, it does not belong in I Bonds. This is the rule that hurts people most, because it is easy to forget when the rate looks good.

Rule 3: the 3-month penalty. Redeem before five years and you give back the last three months of interest. After five years there is no penalty. On a $10,000 bond at 5.4 percent, three months of interest is about $135. Not ruinous, but it turns a good rate into an average one if you exit early, so plan on holding at least a few years.

Rule 4: the tax treatment. I Bond interest skips state and local tax entirely, and federal tax waits until you redeem. If you live in California, New York, or another high-tax state, that exemption is worth real money against a savings account whose interest gets taxed every year. It also makes I Bonds a neat tool for spacing income into a lower-tax year, like early retirement.

Rule 5: the timing quirk. Buy at any point in a month and the Treasury treats it as if you bought on the first of that month. Buy on October 31 and you get the full month of October interest. Buy on November 1 and you are a November buyer with the new rates. That end-of-month rule is why October 31 is a real deadline, not a soft one, and why a purchase timed for the last days of a month earns a free month of interest.

What are the limits of the gift box move?

A gift box is a TreasuryDirect holding area where you buy I Bonds as a gift now and deliver them in a later year, so the purchase counts against the recipient's limit only when delivered.

There is a well-known way to buy more than the annual cap: the gift box. You buy I Bonds as a gift for someone else, say your spouse, and hold them in a gift box in your TreasuryDirect account. The bonds do not count against the recipient's limit until they are delivered, and you control the delivery date. Couples use this to lock today's rates on next year's purchases.

It works, and the Treasury has allowed it for years, but it is not a loophole to abuse casually. The recipient must have a TreasuryDirect account to receive the delivery, and the delivery itself counts against their limit in the year it happens. If you gift $10,000 now and deliver it in January, that uses the recipient's January limit. Plan the delivery year before you buy, or you will just move the bottleneck.

For most savers the gift box matters this November for a simple reason: if you already bought $10,000 in 2026, you can still buy a gift for your spouse now at the expected November rates and deliver it in January. That locks the higher fixed rate on money that would otherwise wait until next year's reset, when the fixed rate could be lower again.

Do not forget the TreasuryDirect login change

Buried in the recent coverage is a practical change that could trip you up at the worst moment. TreasuryDirect is moving account access to a new login system built around ID.me identity verification. If you have an old account you have not touched in years, do not wait until October 31 to discover you need to re-verify your identity. Log in this week, confirm you can reach your account, and sort out any verification step while there is still time. A rate deadline is a bad day to fight a login screen.

New buyers should open the account a few days early for the same reason. The purchase itself takes minutes once the account works. The account setup and identity check are the slow part, and they are entirely avoidable with a little lead time.

Who should skip this round

I Bonds are not for everyone, even at 5.4 percent. Skip this round if your emergency fund is not yet funded, because locked money is not an emergency fund. Skip it if you need the cash within a year for a house deposit, a tax bill, or a business expense. Skip it if you are chasing stock market returns, because I Bonds are built to protect purchasing power, not to grow wealth fast. And skip it if the paperwork puts you off: a savings account paying 4 percent with instant access beats a 5.4 percent bond you resent managing.

For everyone else, especially founders and freelancers with lumpy income, I Bonds solve a specific problem. Cash sitting in a business checking account earns nothing and loses value to inflation every month. A November I Bond turns idle cash into inflation-proof savings with a tax break, and the 12-month lockup doubles as a commitment device against raiding the fund for the next shiny expense. Pair it with a real emergency fund in a high-yield savings account, and you have a two-layer cash plan: instant money for surprises, I Bonds for the money you can afford to park.

That pairing is the same logic behind our emergency fund guide, which sizes the instant-access layer first, and our Solo 401(k) versus SEP IRA comparison, which covers the tax-advantaged accounts where longer-term retirement money belongs. I Bonds sit between those two: safer than investments, harder to raid than a savings account.

What to do this week

If you are buying in November, the work is short. First, log in to TreasuryDirect now and confirm your account and identity verification work. Second, decide the amount: up to $10,000 per person if you have 2026 room left, or a gift box purchase if your limit is used. Third, set a calendar reminder for November 1 to check the official announcement, and buy after the new rates post. Fourth, write down the purchase month, because your personal rate reset dates follow it for years.

If you already bought in 2026 and want the November rate anyway, the gift box is your route, delivered in January against next year's limit. If you bought earlier in 2026 at the old fixed rate, there is no way to upgrade that bond. You can redeem it after 12 months and rebuy, but weigh the 3-month penalty and the lost time before you churn a bond for a 0.40 point gain.

One more habit worth starting: check your I Bond rates twice a year, in May and November, the same way you check your insurance at renewal. Rates change, caps reset, and a five-minute check twice a year is how small edges like this one get captured instead of missed.

Frequently asked questions

Should I buy I Bonds before October 31, 2026 or wait until November?

If you have not used your 2026 limit yet, waiting until November 1 looks better this year. The November bond is expected to pay around 5.4 percent composite with a fixed rate near 1.3 percent that stays for 30 years, against 4.26 percent and a 0.90 percent fixed rate for an October purchase. The October bond still gets the new 4.08 percent variable rate later, but it keeps the lower fixed rate forever.

What is the I Bond rate for November 2026?

The official rate is announced by the Treasury around November 1. The variable part is already locked at 4.08 percent from April to September 2026 inflation data. Analysts expect the fixed rate to land at 1.30 percent, possibly 1.40 percent, which would put the composite rate near 5.4 percent. Treat those as forecasts until the Treasury publishes the official numbers.

How much can I buy in I Bonds per year?

You can buy up to $10,000 in electronic I Bonds per person per calendar year through TreasuryDirect, plus up to $5,000 in paper I Bonds with a tax refund. Couples can each use their own limit, so a household can buy $20,000 electronically, and more with the gift box strategy.

Can I sell I Bonds whenever I want?

No. You cannot redeem I Bonds at all for the first 12 months. If you redeem before five years, you lose the last three months of interest as a penalty. After five years there is no penalty. That lockup is why I Bonds fit money you will not need for at least a year.

Are I Bonds taxed?

I Bond interest is exempt from state and local taxes, and federal tax is deferred until you redeem the bond or it matures at 30 years. That deferral is a real advantage for people in high-tax states, and it is one reason I Bonds still beat many savings accounts even when headline rates look close.

For the wider picture, read our Roth IRA conversion ladder guide for tax planning in retirement, our index funds guide for beginners for money you can afford to invest for growth, and our emergency fund guide to size the cash you keep instantly available. For the year-end tax side of the same decision, read our tax-loss harvesting guide before December 31.

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