How much is a $100 Series I savings bond from 2015 worth?
Official Treasury redemption values by issue month, September 2026.
savingsbondcheck.com - $100 Series I savings bond issued 2015 - values as of September 2026 - data: U.S. Treasury
Official Treasury value file data
- A $100 Series I savings bond issued in 2015 is worth $137.24 to $140.52 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 $40.52 earned so far.
- Still earning interest. Bonds from 2015 reach final maturity around May 2045, 30 years after issue, and stop earning then.
- Next scheduled value change: October 2026, when a $100 bond from May 2015 goes to $139.52.
Every 2015 issue month
Savings bonds issued in different months of 2015 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 |
|---|---|---|---|
| January 2015 | $139.36 | Still earning | January 2045 |
| February 2015 | $139.00 | Still earning | February 2045 |
| March 2015 | $138.60 | Still earning | March 2045 |
| April 2015 | $138.24 | Still earning | April 2045 |
| May 2015 | $139.12 | Still earning | May 2045 |
| June 2015 | $138.76 | Still earning | June 2045 |
| July 2015 | $138.36 | Still earning | July 2045 |
| August 2015 | $138.00 | Still earning | August 2045 |
| September 2015 | $137.60 | Still earning | September 2045 |
| October 2015 | $137.24 | Still earning | October 2045 |
| November 2015 | $140.52 | Still earning | November 2045 |
| December 2015 | $140.12 | Still earning | December 2045 |
Other Series I 2015 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 2015 worth?
Between $137.24 and $140.52 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 2015 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 2015 denominations and the full history: Series I 2015 value table · every year for this denomination: $100 savings bond values · check a specific bond · how to cash it.