How much is a $100 Series I savings bond from 1998 worth?
Official Treasury redemption values by issue month, September 2026.
savingsbondcheck.com - $100 Series I savings bond issued 1998 - values as of September 2026 - data: U.S. Treasury
Official Treasury value file data
- A $100 Series I savings bond issued in 1998 is worth $507.40 to $523.56 as of , depending on the issue month printed on the bond. That is the official U.S. Treasury redemption value - what a bank pays you today.
- It cost $100.00 when it was bought (I bonds sold at face value). Everything above that is interest: up to $423.56 earned so far.
- Still earning interest. Bonds from 1998 reach final maturity around September 2028, 30 years after issue, and stop earning then.
- Next scheduled value change: October 2026, when a $100 bond from September 1998 goes to $526.48.
Every 1998 issue month
Savings bonds issued in different months of 1998 are worth different amounts, because each month's bond has its own rate history. Match the issue date printed on your bond to the row below.
| Issue month | Value now ($100 bond) | Status | Final maturity |
|---|---|---|---|
| September 1998 | $523.56 | Still earning | September 2028 |
| October 1998 | $520.76 | Still earning | October 2028 |
| November 1998 | $510.20 | Still earning | November 2028 |
| December 1998 | $507.40 | Still earning | December 2028 |
Other Series I 1998 denominations: $50 · $75 · $100 · $200 · $500 · $1,000 · $5,000 · $10,000
Source: U.S. Treasury Fiscal Data - Savings Bonds Value Files (v2/accounting/od/sb_value), redemption period 2026-09. Values are published per $25 of face value and scale exactly: a $100 bond is 4x the per-$25 figure.
Frequently asked questions
How much is a $100 savings bond from 1998 worth?
Between $507.40 and $523.56 as of September 2026, depending on the issue month printed on the bond. Find the month in the table above for the exact Series I figure from Treasury's official value file.
What did a $100 Series I bond cost?
$100.00.
Is a 1998 Series I bond still earning interest?
Yes, until it reaches final maturity 30 years after its issue month - the table above gives the exact month for each.
How do I cash a $100 savings bond?
Take the paper bond and photo ID to a bank that redeems savings bonds, or mail it to Treasury with FS Form 1522. See the how-to-cash guide for what banks require and the tax forms.
All 1998 denominations and the full history: Series I 1998 value table · every year for this denomination: $100 savings bond values · check a specific bond · how to cash it.