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The Money Overview

U.S. savings bonds stop earning interest after 30 years, so cash the old ones

A U.S. savings bond stops earning interest exactly 30 years after it was issued, which means an old bond tucked in a drawer or a safe-deposit box may have quietly stopped growing years ago. Once a bond reaches final maturity, it pays nothing further, and every month it sits uncashed its fixed dollar value loses ground to inflation. Millions of dollars in matured savings bonds go unredeemed for this reason, often held by older Americans who received them decades ago and assumed they would keep compounding forever. They do not, and the fix is straightforward: identify the issue date and cash the bonds that have stopped paying.

The urgency is economic, not sentimental. A matured bond is no longer an investment; it is a static amount of cash frozen inside a certificate, steadily worth less in real terms. Recognizing which bonds have crossed the 30-year line, and understanding the tax that comes due when they are redeemed, turns a forgotten keepsake back into usable money.

Why a matured bond becomes a dead asset

Savings bonds are designed to accrue interest for a defined period, and the government sets that period at 30 years from the issue date for the common Series EE and Series I bonds. During those three decades the bond earns interest that adds to its value; after them it enters what the Treasury calls final maturity and simply stops. The Treasury’s savings bond resource lays out this life cycle, and the key point is that the interest clock does not restart or continue past year 30.

The consequence for a holder is that a matured bond behaves like cash left under a mattress. Its face and accrued value are fixed, and because prices generally rise over time, the purchasing power of that frozen amount erodes year after year. A bond that finished maturing several years ago has already lost real value that would have been preserved had the money been redeemed and redeployed into an account that pays interest.

This is why holding a matured bond out of habit or nostalgia carries a hidden cost. The bond is not earning, and it is not keeping pace with inflation, so every year of delay is a small loss. For older savers who own paper bonds from the 1980s or 1990s, a meaningful share of a portfolio can be sitting idle in exactly this state without the owner realizing it.


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How to check issue dates and redeem the bonds

The first step is reading the issue date, which appears on a paper bond and determines when its 30-year term ends. A bond issued in a given month reaches final maturity 30 years later in that same month, so a quick look at the date tells the holder whether the bond is still earning or has gone dormant. Bonds already past that mark are the ones to redeem first, since they have nothing more to gain by being held.

Redeeming depends on the form of the bond. Paper bonds can generally be cashed at many banks and credit unions, or mailed to the Treasury for payment, while electronic bonds held in a TreasuryDirect account are redeemed online with the proceeds sent to a linked bank account. The Treasury’s guidance on cashing a savings bond walks through both routes, including what identification and account information the holder needs to complete the transaction. There is no penalty for cashing a fully matured bond, because the term is already complete.

For bonds that have not yet reached 30 years, the decision is different. Those are still earning, and cashing one early can forfeit some interest depending on how long it has been held, so the drawer-clearing logic applies only to the matured ones. Sorting a stack of bonds by issue date separates the dead assets from the ones still worth keeping.

The tax that comes due in the year they are cashed

Cashing a savings bond has a tax consequence that catches some holders off guard: the interest a bond earned over its entire life is federally taxable, and for most owners that tax comes due in the year the bond is redeemed. A bond held for decades can carry a large accumulated interest amount, all of which lands on the holder’s federal return for the year it is cashed. The IRS describes how this savings-bond interest is reported in its guidance on interest income.

The timing creates a planning wrinkle. Redeeming several large bonds in a single year can pile their combined interest into one tax year, potentially pushing a retiree into a higher bracket or affecting income-tested items. Spreading redemptions across years, or coordinating them with a year of lower income, can soften that effect, though a bond that has already matured earns nothing while it waits. Savings bond interest is exempt from state and local income tax, which lessens the overall bite.

The balance for a holder is clear enough. A matured bond earns nothing and loses value to inflation, so leaving it uncashed to defer the tax is usually a poor trade. The interest is owed whenever the bond is redeemed, and delaying redemption past maturity only adds an inflation cost on top of a tax bill that is coming either way.

This article was researched and drafted with the assistance of artificial intelligence.

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Daniel Harper

Daniel is a finance writer covering personal finance topics including budgeting, credit, and beginner investing. He began his career contributing to his Substack, where he covered consumer finance trends and practical money topics for everyday readers. Since then, he has written for a range of personal finance blogs and fintech platforms, focusing on clear, straightforward content that helps readers make more informed financial decisions.​