14 guides published so far — more are added regularly.
Free Series EE savings bond calculator using official Treasury redemption values. See current value, interest earned, guaranteed doubling and final maturity for any EE bond issued since 1980.
Free Series I bond calculator with official Treasury redemption values. Check today's value, composite-rate interest and the 3-month penalty for any I bond issued since 1998.
What is an old Series E savings bond worth? Free calculator with official Treasury values for E bonds and war bonds issued 1941-1980. All Series E bonds have matured — check the final value.
EE bonds vs I bonds compared: how each earns interest, purchase price, the 20-year doubling guarantee, and which one a bond in your hand actually is.
How U.S. savings bond interest actually accrues: compounding schedule, fixed vs composite rates, the early-redemption penalty, and why value updates monthly.
Savings bonds stop earning interest at final maturity: 30 years for EE and I bonds, 30-40 years for Series E. See which of your bonds have matured and what to do next.
Where and how to cash paper savings bonds: bank redemption, mailing to Treasury Retail Securities Services, deceased-owner bonds, and replacing a lost bond.
How U.S. savings bond interest is taxed: federal vs state, when it's reported, the education-expense exclusion, and rules for deceased owners' bonds. Not tax advice.
A $100 savings bond can be worth anywhere from about $51 to over $600 depending on series and issue date. See real examples and check your exact bond value free.
How SavingsBondValues.com computes redemption values: the official Treasury dataset we read, how often it updates, the exact math, and known limitations.
The official TreasuryDirect calculator can't save inventories in Chrome or Edge. This free alternative uses the same official Treasury values — and your bond list saves in every browser, privately.
What a savings bond's serial number actually does: it's not used to calculate value, but it matters for replacement claims and ownership verification. Where to find it.
How to read a savings bond's growth chart: this calculator plots your bond's value from issue to today (or to final maturity), using the same official Treasury data behind every figure.
You don't need a bank relationship to redeem paper savings bonds — here's the TreasuryDirect and mail-in path for cashing bonds without going through a bank teller.