These bonds have stopped earning interest. Every Series E bond issued in 1966 has passed final maturity (from Jan 1996). Holding them longer adds nothing, so most owners cash them. If you haven't reported the interest yet, it was taxable for the year the bond matured. How to cash them · Taxes
Key facts about 1966 Series E bonds
- A $100 bond issued January 1966 is now worth 6.8 times its $75.00 purchase price.
- It stopped earning interest in Jan 1996 and has been frozen at $512.52 since. Every month it stays uncashed earns nothing.
- It was already worth more than its $100 face value when Treasury's records begin (May 1992).
Value by issue month
| Issue month | $25 bond | $50 bond | $100 bond | $1,000 bond | Status | Final maturity |
|---|---|---|---|---|---|---|
| January 1966 | $128.13 | $256.26 | $512.52 | $5,125.20 | Stopped earning | Jan 1996 |
| February 1966 | $128.13 | $256.26 | $512.52 | $5,125.20 | Stopped earning | Feb 1996 |
| March 1966 | $121.94 | $243.88 | $487.76 | $4,877.60 | Stopped earning | Mar 1996 |
| April 1966 | $121.94 | $243.88 | $487.76 | $4,877.60 | Stopped earning | Apr 1996 |
| May 1966 | $122.02 | $244.04 | $488.08 | $4,880.80 | Stopped earning | May 1996 |
| June 1966 | $123.28 | $246.56 | $493.12 | $4,931.20 | Stopped earning | Jun 1996 |
| July 1966 | $123.27 | $246.54 | $493.08 | $4,930.80 | Stopped earning | Jul 1996 |
| August 1966 | $123.27 | $246.54 | $493.08 | $4,930.80 | Stopped earning | Aug 1996 |
| September 1966 | $123.27 | $246.54 | $493.08 | $4,930.80 | Stopped earning | Sep 1996 |
| October 1966 | $123.27 | $246.54 | $493.08 | $4,930.80 | Stopped earning | Oct 1996 |
| November 1966 | $124.46 | $248.92 | $497.84 | $4,978.40 | Stopped earning | Nov 1996 |
| December 1966 | $125.85 | $251.70 | $503.40 | $5,034.00 | Stopped earning | Dec 1996 |
Values as of October 2026. Other face values are proportional: a $200 bond is worth twice the $100 value. Click a month to open it in the calculator.
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Questions about 1966 Series E bonds
How much is a $100 Series E bond from 1966 worth?
As of October 2026, a $100 Series E bond issued in 1966 is worth $487.76 to $512.52, depending on the month it was issued. It cost $75.00 new.
Do 1966 Series E bonds still earn interest?
No. They have all reached final maturity and stopped earning interest.
Is the value before tax?
Yes. Savings bond interest is subject to federal income tax but not state or local income tax.
All Series E values by year · Found old savings bonds? What to do