EE and I bonds · value now · 20-year double

Savings bond calculator

A savings bond calculator adds up the interest a bond has earned since its issue month. EE bonds bought from November 1, 2026, to April 30, 2027 earn a fixed 2.90% and are guaranteed to double in 20 years, so $10,000 becomes $20,000 in 2046. A $100 paper EE bond from May 2010 is worth $62.96 today.

Interest Calculators editorial teamUpdated 7 sources

Calculator 24

EE or I savings bond

Rates from TreasuryDirect; EE bonds issued May 2005 or later, I bonds May 2016 or later

Bond series
Bond form
$

A $100 paper EE bond (bought for $50.00) issued in May 2010 earns a fixed 1.40%. After 16 years 6 months it is worth $62.96. At 20 years (May 2030) Treasury raises it to $100.00, double the price; the 1.40% rate alone would reach $66.10.

Value now$62.9616 years 6 months
If cashed now$62.96no penalty after 5 years
At 20 years$100.00includes $33.90 added by Treasury
At 30 years$114.96final maturity, May 2040*
Value at each anniversary, years 1–30
YearDateValue of $100 paper bondInterest so far
1May 2011$50.70$0.70
2May 2012$51.42$1.42
3May 2013$52.14$2.14
4May 2014$52.86$2.86
5May 2015$53.62$3.62
6May 2016$54.38$4.38
7May 2017$55.14$5.14
8May 2018$55.90$5.90
9May 2019$56.70$6.70
10May 2020$57.50$7.50
11May 2021$58.30$8.30
12May 2022$59.12$9.12
13May 2023$59.96$9.96
14May 2024$60.80$10.80
15May 2025$61.64$11.64
16May 2026$62.52$12.52
17*May 2027$63.40$13.40
18*May 2028$64.28$14.28
19*May 2029$65.18$15.18
20*May 2030$100.00$50.00
21*May 2031$101.40$51.40
22*May 2032$102.82$52.82
23*May 2033$104.26$54.26
24*May 2034$105.72$55.72
25*May 2035$107.20$57.20
26*May 2036$108.72$58.72
27*May 2037$110.24$60.24
28*May 2038$111.80$61.80
29*May 2039$113.36$63.36
30*May 2040$114.96$64.96

* Projected. EE bonds keep their fixed rate until 30 years unless Treasury announces a different rate for years 20–30 before year 20 (31 CFR 351.35); values here assume the rate continues.

Formula. EE value on a $25 basis: each six months it grows by (1 + fixed rate ÷ 2), with interest added monthly within the period. At 20 years the value is raised to twice the purchase price if the rate fell short; interest stops at 30 years. Cashed before five years, the last three months of interest are lost (never below the price). I bonds use the composite rate instead.

Current EE bond rate and the 20-year double

EE bonds issued November 1, 2026, through April 30, 2027 earn a fixed rate of 2.90% for at least 20 years, and Treasury guarantees the bond will be worth at least twice its price at 20 years, adding money at that point if the rate falls short.[1][2]

Rate that doubles money in 20 years=21/20 − 1 = 3.53% a year

Because 2.90% is below 3.53%, the guarantee is what sets the 20-year value: $10,000 grows to $17,784.00 on the rate alone, and Treasury adds $2,216.00 to bring it to $20,000.00. Held to 20 years, that is the same as earning 3.53% a year. Cashed earlier, the bond is worth only what 2.90% has built up, so an EE bond pays well only if you keep it the full 20 years.

$10,000 electronic EE bond bought November 2026 at 2.90%
HeldValueEffective yearly return
5 years$11,548.002.92%
10 years$13,336.002.92%
15 years$15,396.002.92%
19 years$17,276.002.92%
20 years$20,000.003.53%
30 years$26,676.003.32%

The jump between year 19 and year 20 is the guarantee. After 20 years the bond keeps earning its fixed rate on the doubled value until it stops paying interest at 30 years, unless Treasury announces a different rate for those last 10 years before year 20.[3]

How EE bond interest works

  • Fixed rate, set when you buy. EE bonds issued since May 2005 keep the rate in force in their issue month; Treasury sets a new one each May 1 and November 1.[2]
  • Interest is added monthly and compounds every six months from the issue month.[3]
  • Cash after 12 months. Before five years you lose the last three months of interest; the bond never pays back less than you paid.[1][3]
  • Original maturity 20 years, final maturity 30 years. After 30 years the bond earns nothing, so cash it then.[3]
  • Buying: electronic EE bonds only, through TreasuryDirect, from $25 to the penny, up to $10,000 per Social Security number per calendar year.[1]

Example from the calculator: a $1,000 EE bond bought in May 2024 at 2.70% is worth $1,069.60 in November 2026; cashed now, the three-month penalty of $7.20 leaves $1,062.40. A $1,000 bond from November 2006 at 3.60% passed 20 years this month at $2,042.40 without any top-up, because its rate was above 3.53%.

What is my paper savings bond worth?

A paper EE bond cost half its face value, so a $100 bond was bought for $50; its value is the purchase price plus interest, and Treasury guarantees it reaches at least the face value at 20 years.[2][3] Choose "Paper" and enter the face value printed on the bond with its issue date. Paper EE bonds were sold until the end of 2011.

The $100 bond from May 2010 earns 1.40%: it is worth $62.96 in November 2026, and in May 2030 Treasury raises it to $100.00, $33.90 more than the rate alone would give. Cashing it now gives up that top-up, which is why bonds from the low-rate years are worth keeping until their 20th anniversary.

Low rates, same guarantee16 of the 44 issue periods since 2005 paid 0.10%. Those bonds grow by about 2% in 20 years on the rate, and the doubling guarantee supplies the rest: every one of them is still worth twice its price at 20 years.

EE bond rate history since May 2005

The fixed rate for each six-month issue period, from TreasuryDirect, and what the 20-year guarantee means for a $1,000 bond bought then:[2]

Series EE fixed rates by issue period (May 2005 or later)
Issued fromFixed rateAt 20 years
Nov 20262.90%Treasury tops up $221 per $1,000
May 20262.40%Treasury tops up $389 per $1,000
Nov 20252.50%Treasury tops up $356 per $1,000
May 20252.70%Treasury tops up $290 per $1,000
Nov 20242.60%Treasury tops up $324 per $1,000
May 20242.70%Treasury tops up $290 per $1,000
Nov 20232.70%Treasury tops up $290 per $1,000
May 20232.50%Treasury tops up $356 per $1,000
Nov 20222.10%Treasury tops up $481 per $1,000
May 20220.10%Treasury tops up $980 per $1,000
Nov 20210.10%Treasury tops up $980 per $1,000
May 20210.10%Treasury tops up $980 per $1,000
Nov 20200.10%Treasury tops up $980 per $1,000
May 20200.10%Treasury tops up $980 per $1,000
Nov 20190.10%Treasury tops up $980 per $1,000
May 20190.10%Treasury tops up $980 per $1,000
Nov 20180.10%Treasury tops up $980 per $1,000
May 20180.10%Treasury tops up $980 per $1,000
Nov 20170.10%Treasury tops up $980 per $1,000
May 20170.10%Treasury tops up $980 per $1,000
Nov 20160.10%Treasury tops up $980 per $1,000
May 20160.10%Treasury tops up $980 per $1,000
Nov 20150.10%Treasury tops up $980 per $1,000
May 20150.30%Treasury tops up $938 per $1,000
Nov 20140.10%Treasury tops up $980 per $1,000
May 20140.50%Treasury tops up $895 per $1,000
Nov 20130.10%Treasury tops up $980 per $1,000
May 20130.20%Treasury tops up $959 per $1,000
Nov 20120.20%Treasury tops up $959 per $1,000
May 20120.60%Treasury tops up $873 per $1,000
Nov 20110.60%Treasury tops up $873 per $1,000
May 20111.10%Treasury tops up $755 per $1,000
Nov 20100.60%Treasury tops up $873 per $1,000
May 20101.40%Treasury tops up $678 per $1,000
Nov 20091.20%Treasury tops up $730 per $1,000
May 20090.70%Treasury tops up $850 per $1,000
Nov 20081.30%Treasury tops up $704 per $1,000
May 20081.40%Treasury tops up $678 per $1,000
Nov 20073.00%Treasury tops up $186 per $1,000
May 20073.40%Treasury tops up $37 per $1,000
Nov 20063.60%Rate alone doubles it
May 20063.70%Rate alone doubles it
Nov 20053.20%Treasury tops up $113 per $1,000
May 20053.50%Treasury tops up −$2 per $1,000

EE bonds vs I bonds

EE bonds pay a fixed rate and double at 20 years; I bonds pay a fixed rate plus inflation that resets every six months, with no doubling guarantee.[1][5] I bonds bought now earn 5.51% for their first six months.[4]

Series EE and Series I savings bonds compared
EE bondI bond
Rate for new bonds2.90% fixed5.51% composite (1.40% fixed + inflation)
GuaranteeWorth 2× the price at 20 yearsRate never below 0%
Best ifYou will hold exactly 20 yearsYou want inflation protection or may cash earlier
Cash after12 months (3-month penalty before 5 years)12 months (3-month penalty before 5 years)
Stops earning30 years30 years
Yearly limit$10,000 electronic$10,000 electronic

Switch the calculator to "I bond" to value one; $10,000 of I bonds from November 2022 is worth $11,668.00 in November 2026. The I bond calculator shows every six-month rate it earned, and the I bond rates page explains the fixed and inflation parts.

Taxes on savings bond interest

Savings bond interest is subject to federal income tax but not to state or local income tax. You can report it every year or wait until you cash the bond or it stops earning interest at 30 years, and it may be excluded if you use the money for qualified higher education expenses.[6][7]

Savings bonds are not the same as marketable Treasury notes and bonds, which pay a coupon every six months and can be sold at a market price; the Treasury bond calculator prices those. For money you need sooner, a Treasury bill locks the current short-term rate for weeks to a year, and a CD fixes a bank rate for a set term. The rule of 72 gives the doubling time at any rate: 72 ÷ 2.90 is about 25 years, which is why the 20-year guarantee matters.

Frequently asked questions

How much is my savings bond worth?

Choose EE or I, enter the face value and the issue month and year shown on the bond, and the calculator adds every month of interest the bond has earned. For a paper EE bond, the value starts at half the face value.

What is the current EE bond rate?

2.90% fixed for EE bonds issued November 1, 2026, through April 30, 2027. The rate lasts at least 20 years, and the bond is guaranteed to double in value at 20 years.

Do EE bonds really double in 20 years?

Yes. For EE bonds bought since June 2003, Treasury guarantees the value at 20 years is at least twice the purchase price and makes a one-time adjustment if the fixed rate fell short. That works out to 3.53% a year if you hold the full 20 years.

When should I cash an EE bond?

Not before its 20th anniversary if its rate is below 3.53%, because the doubling top-up is paid only at 20 years. After 30 years it earns nothing, so cash it then. Before five years you also lose three months of interest.

Are savings bonds taxable?

Interest is taxed federally but not by states or localities. You can defer it until you cash the bond, and it may be tax-free when used for qualified higher education expenses.

Sources

  1. EE bonds (EE bonds at a glance) · TreasuryDirect, U.S. Department of the Treasury, accessed November 14, 2026
  2. EE bond interest rates for bonds issued since May 2005 · TreasuryDirect, U.S. Department of the Treasury, rates through November 1, 2026; accessed November 14, 2026
  3. 31 CFR part 351, Offering of United States Savings Bonds, Series EE (§§ 351.34, 351.35) · eCFR, Department of the Treasury regulations, current as of November 14, 2026
  4. I bonds interest rates · TreasuryDirect, U.S. Department of the Treasury, rates effective November 1, 2026
  5. I bonds (I bonds at a glance) · TreasuryDirect, U.S. Department of the Treasury, accessed November 13, 2026
  6. Tax information for EE and I bonds · TreasuryDirect, U.S. Department of the Treasury, accessed November 14, 2026
  7. Using bonds for higher education · TreasuryDirect, U.S. Department of the Treasury, accessed November 13, 2026