US Treasury I Bond Value Formula:
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The US Treasury I Bond Value Calculator estimates the current value of Series I savings bonds based on purchase amount, fixed rate, semiannual inflation rate, and holding period. I bonds are inflation-protected securities issued by the US Treasury.
The calculator uses the I Bond value formula:
Where:
Explanation: The formula accounts for both the fixed rate component and inflation adjustments that occur semiannually, compounded over the holding period.
Details: Accurate I Bond valuation helps investors track their inflation-protected investments, plan for future financial needs, and make informed decisions about holding or redeeming bonds.
Tips: Enter purchase amount in USD, fixed rate and inflation rate as decimals (e.g., 0.025 for 2.5%), and years held. All values must be non-negative.
Q1: What are US Treasury I Bonds?
A: I Bonds are inflation-indexed savings bonds issued by the US Treasury that earn interest based on a combination of fixed rate and semiannual inflation rate.
Q2: How often are inflation rates adjusted?
A: Inflation rates for I Bonds are adjusted every six months (May and November) based on the Consumer Price Index.
Q3: What is the minimum holding period for I Bonds?
A: I Bonds must be held for at least one year, and there's a penalty of 3 months' interest if redeemed before 5 years.
Q4: Are there purchase limits for I Bonds?
A: Yes, the annual purchase limit is $10,000 per Social Security Number for electronic bonds, plus $5,000 in paper bonds via tax refund.
Q5: How are I Bonds taxed?
A: I Bond interest is exempt from state and local taxes but subject to federal income tax. Tax can be deferred until redemption or maturity.