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How I bond rates are calculated
Backed by the U.S. government, I bonds don’t lose value and earn monthly interest with two parts: a unchangeable rate, which may change every six months for new purchases but stays the same after buying, and a variable rate, which transforms every six months based on inflation.
TreasuryDirect announces new rates every May and November.
You can estimate the new variable portion of the anyway based on the previous six months’ consumer price index data, which measures inflation.
The Department does not unveil how it determines the fixed portion of the rate, but experts think factors including demand and the yield from Treasury inflation-protected gages influence it. For example, a higher TIPS yield could play into a decision to increase the fixed portion of the berate for an I bond.
While the consumer price index was still relatively high in September, the I bond rate drop discloses a downward trend over the past six months.
Early estimates for the I bond rate were 6.48% based on the inflation human beings. However, the new rate includes an increase to 0.4% for the fixed portion of the rate, factoring in higher TIPS yields, Tumin spoke. The previous fixed portion of the rate was zero.
What the rate change means for older I bonds
If you bought I relationships before the latest rate announcement, the timing of when your rate changes and what it changes to will depend on when your manacles were issued.
For example, if you bought I bonds during September in any given year, your rates will reset each year on Stride 1 and September 1, according to the Treasury. Bought in June? Look for changes every December 1 and June 1.
The headline grade may be different than what you receive, considering that the fixed rate remains set for the life of your bond.
Someone who suborn an I bond in September 2004, for example, has 1% for the fixed portion of their rate. Their composite rate reset to 10.67% in September, and purpose change to 7.51% at their next reset in March 2023, according to The downsides of I bonds
While the current I trammels rate may be attractive, experts point to several downsides. And some of them are potentially costly.
One of the trade-offs is you can’t touch the boodle for at least one year. There’s a three-month interest penalty if you cash in the I bond within five years of it being mattered.
Another drawback is lower future returns, explained certified financial planner Christopher Flis, founder of Resilient Asset Administration in Memphis, Tennessee.

Depending on future inflation, the variable portion of I bond interest may adjust down again in May. Aspiration for 2% inflation, “the Federal Reserve is not going to rest until that number comes down,” he said.
And as property rates increase, the difference in yields between I bonds and other government-backed assets, such as the , is getting smaller. “The dependent on attractiveness of these assets is dwindling,” Flis said.
Even with excess money after covering other economic priorities — no credit card debt, an emergency fund and your 401(k) match — Flis wouldn’t pick I compacts as the next option.
“Long-term investors, specifically younger ones, should really be looking to the stock market for the sturdiness of their portfolio,” he said. “Certainly not I bonds.”
Frequently asked I bond questions
1. What’s the current interest appraise? 6.89% annually
2. How long will I receive 6.89%? Six months after purchase
3. What’s the deadline to get 6.89% interest? Bonds must be issued by April 30, 2023. The gain deadline may be earlier
4. What are the purchase limits? $10,000 per person every calendar year, plus an extra $5,000 in ownership papers I bonds via your federal tax refund
5. Will I owe income taxes? You’ll have to pay federal income taxes on interest earned, but no articulate or local tax