Savings Bond Calculator 2026 – Series EE, Series I & Patriot Bond Value Estimator

Savings Bond Calculator: How to Find What Your US Savings Bonds Are Worth in 2026

US savings bonds are one of the oldest and most trusted investment vehicles in America. Tens of millions of Americans hold paper savings bonds — often purchased as gifts years or decades ago — without knowing their exact current value. This savings bond calculator gives you a reliable estimate of what your Series EE bonds, Series I bonds, and Patriot Bonds are worth today, along with key details like total interest earned, your annual interest rate, the next accrual date, and the final maturity date when the bond stops earning interest entirely.

While this calculator provides close estimates based on Treasury formulas, the official authoritative source for your specific bond's exact value — including the precise effect of your individual serial number, issue day, and semiannual compounding schedule — is the TreasuryDirect savings bond calculator at treasurydirect.gov. We explain below exactly how to use both tools effectively.

Series EE Savings Bond Calculator: How EE Bonds Work and How to Calculate Their Value

Series EE savings bonds are the most common type of US savings bond. Understanding how they are priced requires knowing which era your bond was issued in, because the interest rate structure has changed dramatically over the decades:

Series EE Bonds Issued May 2005 – Present (Fixed Rate)

EE bonds issued from May 2005 onward earn a fixed interest rate set at the time of purchase. These bonds are purchased for face value (unlike older EE bonds which were purchased at half face value). The most important feature: the US Treasury guarantees that these bonds will double in value within 20 years, regardless of the stated interest rate. This guarantee means if the fixed rate is too low to achieve doubling naturally, the Treasury adds a one-time adjustment at the 20-year mark to ensure the bond reaches double its purchase price.

For the Series EE savings bond calculator, the formula for post-2005 bonds is: Current Value = Purchase Price × (1 + r)^t, where r is the annual fixed rate and t is years held. At 20 years, value is guaranteed to be at least 2× purchase price. At 30 years (final maturity), the bond stops earning interest entirely and should be redeemed.

Series EE Bonds Issued May 1997 – April 2005 (Variable Rate)

EE bonds from this era earn a variable rate that was set at 90% of the average five-year Treasury securities yield over the preceding six months. These bonds were purchased at half their face value (a $50 bond cost $25). The interest rate varied significantly — ranging from about 1.60% to 5.90% depending on when the bond was issued and market conditions. For the most accurate value of bonds from this period, TreasuryDirect's savings bond calculator with the serial number provides the most precise result.

Series EE Bonds Issued Before May 1997 (Older Variable Rate)

Bonds issued before May 1997 followed yet another interest calculation structure and may have already reached or be approaching their 30-year final maturity date. Any EE bond issued before June 1996 has already matured (as of 2026) and is earning no additional interest. If you have EE bonds from 1996 or earlier, check their value immediately — they have stopped growing and should be redeemed now.

Patriot Bond Calculator: What Is a Patriot Bond and What Is It Worth?

Patriot Bonds are Series EE savings bonds that were sold at US banks and financial institutions from December 11, 2001 through December 31, 2011, in direct response to the September 11, 2001 terrorist attacks. The US Treasury issued these bonds with "Patriot Bond" inscribed on the paper certificate to honor the spirit of national unity following the attacks.

For the purpose of the Patriot Bond calculator, there is a critical fact: a Patriot Bond is a Series EE bond in every financial respect. It earns the same interest rates, follows the same maturity schedule, redeems through the same process, and is calculated with the identical formula as any other EE bond issued during the 2001–2011 period. Select "Patriot Bond" in the calculator above, and the tool will price it exactly like the corresponding Series EE bond.

Patriot Bonds issued in December 2001 are now approximately 24 years old (as of 2026) and are still earning interest — they have 6 years remaining before final maturity (30 years from issue). Bonds issued in December 2011 are 14 years old and still growing.

Savings Bond Calculator Series I: How I Bonds Work and Why They Were Popular

Series I savings bonds became enormously popular between 2021 and 2023 when their composite interest rate briefly reached 9.62% — the highest rate since I bonds were introduced in 1998 — driven by a surge in inflation. Unlike EE bonds which pay a fixed rate, I bonds use a two-component rate structure:

• Fixed rate: Set at the time of purchase and stays constant for the entire 30-year life of the bond. Recent fixed rates have ranged from 0.00% (2021–2022) to 1.30% (2023–2024).
• Inflation rate: Updated every 6 months (May 1 and November 1) based on the CPI-U (Consumer Price Index for All Urban Consumers). This component varies with inflation and can even be zero if deflation occurs, though the composite rate can never go below zero.

The composite I bond rate formula is: Composite Rate = Fixed Rate + (2 × Semiannual Inflation Rate) + (2 × Fixed Rate × Semiannual Inflation Rate). In practical terms, for most rate levels, the composite rate is approximately: Fixed Rate + (2 × Semiannual Inflation Rate).

I bonds are particularly valuable inflation hedges because they automatically adjust to keep pace with rising prices. For the savings bond calculator Series I tab above, enter your purchase amount, issue date, fixed rate (found on your purchase receipt or TreasuryDirect account), and the average inflation rate you expect going forward to see your projected value.

How Much Is a $50 Series EE Bond Worth Today? Complete Answer

The value of a $50 Series EE bond today depends entirely on when it was purchased. Here are specific answers for different issue periods:

• $50 EE bond from 1990–1995: These bonds have fully matured (30 years old). A $50 bond that cost $25 is now worth approximately $95–$125 depending on the exact issue date and applicable interest rates. These bonds are no longer earning interest and must be redeemed immediately to capture their value.
• $50 EE bond from 2000–2004: Purchased for $25, now approximately 22–26 years old. Worth approximately $55–$75, depending on issue date and rate history.
• $50 EE bond from 2005 (May onward): Purchased for $25 at face value (note: post-May 2005 EE bonds are sold at face value). At 20 years, this bond is now guaranteed worth at least $50 — the Treasury doubled it at the 20-year anniversary.
• $50 EE bond from 2010–2015: Currently worth approximately $40–$48 depending on the fixed rate at issue. Will reach face value at the 20-year guarantee point.
• $50 EE bond from 2020–2024: Still accumulating interest, worth approximately $26–$40 depending on issue year and current rate.

Use the Series EE savings bond calculator above — enter face value = $50 and your specific issue date — to get the most precise estimate for your particular bond.

Savings Bond Serial Number: What It Is and When You Need It

Every paper US savings bond has a serial number printed on the face of the certificate. The savings bond serial number is a unique identifier assigned by the Treasury when the bond is issued. It serves several important purposes:

• Official TreasuryDirect lookup: The Treasury's official savings bond calculator at TreasuryDirect.gov uses the serial number to retrieve the exact value from Treasury records, including the precise semiannual compounding schedule and any rate changes over the bond's life
• Lost or destroyed bonds: If your paper bond is lost, stolen, or destroyed, the serial number (if you recorded it) allows the Treasury to verify ownership and issue a replacement through FS Form 1048
• Estate settlement: When settling an estate, serial numbers are needed to properly transfer or redeem savings bonds belonging to a deceased owner
• Ownership verification: Banks use serial numbers to verify bond ownership when cashing paper bonds

For purposes of estimating your bond's value using our savings bond calculator, the serial number is not required — you only need the series (EE, I), denomination (face value), and issue date printed on the bond. The serial number format looks like: A12345678EE for Series EE bonds or N12345678I for Series I bonds.

How to Cash In a Savings Bond: Complete Step-by-Step Guide

Knowing how to cash in a savings bond correctly ensures you receive the full value and avoid any administrative complications. Here is the complete process:

Cashing Paper Savings Bonds at a Bank

1. Confirm the bond is eligible: All savings bonds must be held for at least 12 months before redemption. You cannot cash a savings bond younger than 1 year old under any circumstances.
2. Gather your identification: You need government-issued photo ID (driver's license, passport, or state ID). The name on the ID must match the name on the bond.
3. Visit a bank or credit union: Most banks cash savings bonds for their customers; some require you to be an account holder. Call ahead to confirm the bank cashes savings bonds and ask about any limits (some have daily redemption limits of $1,000).
4. Sign the bond: Do not sign the bond until you are at the bank and a bank employee asks you to — signing in advance can create issues.
5. Receive payment: The bank pays you the current redemption value of the bond. For bonds held less than 5 years, the bank withholds the last 3 months of interest as an early redemption penalty.
6. Report interest income: Interest earned on savings bonds is subject to federal income tax (but exempt from state and local taxes) in the year you cash them. You will receive a 1099-INT from the bank or Treasury.

Cashing Electronic Savings Bonds via TreasuryDirect

If your bonds are held electronically in a TreasuryDirect account: log in at treasurydirect.gov, navigate to your ManageDirect section, select the bond(s) you want to redeem, and submit the redemption request. Funds are deposited to your linked bank account within 1–2 business days. Minimum redemption is $25 for electronic bonds.

Early Redemption Penalty for Savings Bonds

Both Series EE and Series I bonds held for less than 5 years forfeit the last 3 months of interest when redeemed. After 5 years, you can cash in any time with no penalty. The 3-month interest penalty is automatically calculated — you simply receive slightly less than the full accumulated interest. This penalty becomes smaller in dollar terms as the bond ages, since 3 months of interest on a 4-year-old bond is a smaller portion of total value than it was at age 2.

TreasuryDirect Savings Bond Calculator: How to Use It (And What to Do If It's Not Working)

The official TreasuryDirect savings bond calculator at treasurydirect.gov/savings-bonds/savings-bond-calculator/ provides the most accurate, authoritative value for your specific bond, using the exact serial number and Treasury records. Here is how to use it:

1. Go to TreasuryDirect.gov and navigate to "Tools" then "Savings Bond Calculator"
2. Enter the bond series (EE, I, E, or Savings Notes)
3. Enter the denomination (face value)
4. Enter the serial number (found on the front of the paper bond)
5. Enter the issue date (month/year from the bond certificate)
6. Click "Calculate" to see current value, interest rate, next accrual date, and maturity date

What to Do If the TreasuryDirect Savings Bond Calculator Is Not Working

Many users report the savings bond calculator not working due to browser compatibility issues, particularly with older Java-dependent versions. If you are experiencing problems with the TreasuryDirect calculator, try these solutions:

• Switch browsers: Use Google Chrome or Microsoft Edge. The updated TreasuryDirect calculator works best in these browsers.
• Clear cache and cookies: Old cached data can interfere with the calculator. Press Ctrl+Shift+Delete to clear browsing data, then reload the page.
• Disable browser extensions: Ad blockers and security extensions sometimes block the calculator from loading properly.
• Check for maintenance: TreasuryDirect occasionally undergoes scheduled maintenance. Check their website banner for maintenance notices.
• Use our calculator above: While not official, the savings bond calculator on this page provides close estimates for Series EE and I bonds without any Java or browser compatibility requirements.
• Call Treasury: For official bond values when the online calculator is unavailable, call TreasuryDirect at 1-844-284-2676.

Taxes on Savings Bond Interest: What You Need to Know

Understanding the tax treatment of savings bond interest is essential before deciding when to redeem:

• Federal income tax: Interest on Series EE and I bonds is subject to federal income tax. You can report interest annually as it accrues (accrual method) or in the year you redeem the bond (cash method). Most people use the cash method, reporting all interest in the year of redemption.
• State and local tax exemption: Savings bond interest is completely exempt from state and local income taxes in all 50 states. This makes them particularly attractive for investors in high-tax states like California, New York, or New Jersey.
• Education exclusion: Interest from Series EE and I bonds may be completely tax-free at the federal level if the proceeds are used for qualified higher education expenses and you meet income limits. This is the "Education Savings Bond Program" (IRC Section 135).
• 1099-INT reporting: When you cash a savings bond, you receive a Form 1099-INT from either the bank (for paper bonds) or TreasuryDirect (for electronic bonds) showing the total interest you must report.

Series EE vs. Series I Bonds: Which Should You Buy in 2026?

The choice between Series EE and Series I savings bonds depends on your investment goals, expected inflation, and time horizon:

Feature	Series EE Bond	Series I Bond
Purchase Price	Face value (electronic)	Face value
Interest Rate Type	Fixed rate (set at purchase)	Fixed + inflation component
Inflation Protection	No	Yes – adjusts every 6 months
Doubling Guarantee	Yes – doubles in 20 years	No guaranteed doubling
Current Rate (2026)	~2.70% (new issue)	~3.11% composite
Annual Purchase Limit	$10,000 electronic + $5,000 paper	$10,000 electronic + $5,000 paper (tax refund)
Minimum Hold Period	12 months	12 months
Early Redemption Penalty	3 months interest (if <5 yrs)	3 months interest (if <5 yrs)
Final Maturity	30 years	30 years
Best For	Long-term, guaranteed doubling	Inflation hedge, flexible holding

In 2026, Series I bonds offer a higher current composite rate when inflation is above about 1.4%. If inflation moderates to low levels, EE bonds' guaranteed doubling at 20 years (equivalent to a 3.53% annualized return) becomes the more attractive guarantee. For most investors, I bonds are the better choice for money you plan to hold 1–5 years; EE bonds with the doubling guarantee are better for money you can commit for 20 years.

Frequently Asked Questions – Savings Bond Calculator 2026

Can I find my old savings bonds if I lost the paper certificate?

Yes. The US Treasury has a Treasury Hunt tool at treasurydirect.gov to search for matured, unredeemed savings bonds. You can also submit FS Form 1048 (Claim for Lost, Stolen, or Destroyed United States Savings Bonds) to request a replacement. You will need the owner's name, Social Security number, approximate issue date, and denomination. If the bond was purchased at a bank, your bank records or receipts may provide the serial number needed for the replacement claim.

Do savings bonds expire?

Savings bonds do not "expire" in the traditional sense — they never become worthless — but they do reach final maturity at 30 years from issue, at which point they stop earning interest. After maturity, the bond retains its last calculated value indefinitely, but that value no longer grows. There is no time limit on when you must redeem a matured bond, but every month you delay redemption after the 30-year maturity date is lost potential return since the funds could be earning interest elsewhere.

How much do I have to pay in taxes when I cash savings bonds?

You pay federal income tax at your ordinary income tax rate on all interest earned. There is no state or local tax. If your marginal federal rate is 22%, a bond that earned $1,000 in interest would cost you $220 in federal taxes, netting you $780 in after-tax interest. The Education Savings Bond exclusion can eliminate this federal tax entirely if proceeds fund qualified higher education costs — see IRS Publication 550 for details and current income limits.

Where can I find the interest rate on my old savings bond?

For paper bonds, the current interest rate is not printed on the certificate — only the denomination and issue date are shown. To find the rate: use TreasuryDirect's savings bond calculator with your serial number, or use the historical rate tables on TreasuryDirect.gov (search "EE bond rate history" or "I bond rate history") and match your issue date to the applicable rate period. Our calculator above uses general rate guidelines for each era, which provide close estimates.

Final Summary: Using the Savings Bond Calculator on This Page

This savings bond calculator provides working estimates for Series EE bonds, Series I bonds, and Patriot Bonds — all three major types of US savings bonds you are likely to encounter. Enter your bond's series, face value, and issue date in the appropriate tab above to get an estimated current value, total interest earned, years to maturity, and year-by-year growth table. The calculator uses Treasury formulas and rate guidelines to provide close estimates without requiring your serial number or TreasuryDirect account access.

For your official exact redemption value — especially if you are planning to cash in bonds imminently and need the precise figure — always confirm with TreasuryDirect.gov or your financial institution before making redemption decisions. The information on this page is educational and designed to help you understand your savings bond portfolio and make informed decisions about when and how to redeem your bonds.