What is a Treasury savings bond?

Home > Savings > What is a savings bond

Key takeaways

  • Treasury bonds (U.S. savings bonds) are a low-risk investment where you lend money to the U.S. government and receive your principal back plus interest.

  • They are issued by the U.S. Treasury and mainly come in two types: Series EE bonds and Series I bonds.

  • This guide explains the differences between these bonds, how their interest rates work, and how to calculate a savings bond’s value.

Savings bonds: Low risk long-term investments

The U.S. Treasury offers both marketable securities and non-marketable securities.

Marketable simply means you’re able to transfer the security to someone else. You can also sell it before it reaches maturity.

There are several types of marketable securities that the Treasury offers, like Treasury Bills, Treasury Notes, and Treasury-Inflation Protected Securities (TIPS). Treasury savings bonds on the other hand are non-marketable, because they’re registered to one person’s Social Security number.

Savings bonds as standalone investments vs. part of a diversified portfolio

U.S. savings bonds are backed by the U.S. government, meaning that they’re generally regarded as a safe investment.

Often, in higher value portfolios, asset managers will invest a portion of an investor’s portfolio in bonds to diversify the portfolio and hedge it against riskier investments. But treasury bonds can also be an affordable and safe way to invest money as a standalone offering.

Treasury bonds also allow you to earn interest for up to 30 years and are sold in amounts as little as $25, meaning they are a more accessible investment option. They come in two types: EE savings bonds and I savings bonds.

What is a Series EE savings bond?

Series EE savings bonds, more often referred to simply as “EE bonds” have the following characteristics and benefits:

  • Guaranteed to double in value within 20 years.
  • Earn a fixed interest rate.
  • Current Rate: 2.70% for bonds issued from May 1, 2024, to October 31, 2024.
  • Available electronically and securely stored in your TreasuryDirect account.
  • Purchase amounts range from $25 to $10,000.
  • Annual purchase limit: $10,000 per calendar year.
  • Redeemable after 1 year; however, cashing in before 5 years results in a 3-month interest penalty.

What is a Series I savings bond?

Series I savings bonds, commonly referred to as “I bonds” have the following characteristics and benefits:

  • Offer protection against inflation with an interest rate adjusted every 6 months based on inflation rates.
  • Current Rate: 4.28%, which includes a fixed rate of 1.30%, for bonds issued from May 1, 2024, to October 31, 2024.
  • Primarily available electronically via TreasuryDirect (minimum amount $25).
  • Option to use your IRS tax refund to purchase paper I bonds (minimum amount $50).
  • Annual purchase limit: $10,000 in electronic I bonds and an additional $5,000 in paper I bonds.
  • Redeemable after 1 year; however, cashing in before 5 years results in a 3-month interest penalty.
  • The interest rate is a combination of a fixed rate and the inflation rate.

Uncovering the interest rate of a bond & calculating its value

What is the interest rate of a savings bond?

The interest rates of EE vs I bonds differ. They also change over time.

You can check the value of your savings bond here.

How to find out what a savings bond is worth

You don’t need to know the interest rate if you calculate the value of the bond with Treasury Direct’s online tools.

Pros & cons of investing in savings bonds

The U.S. Treasury guarantees that the value of an EE bond at 20 years will be double what you initially paid for it. For I bonds, it guarantees that the interest rate of an I bond will never fall below zero. But with this high degree of safety comes some potential drawbacks.

Here are several reasons why you might consider alternative investments:

  • Long Maturity Period: Most savings bonds have a maturity period of 20-30 years, so they are considered long-term investments. This makes them unsuitable for individuals who require access to liquid capital.
  • Early Redemption Penalties: While you can redeem an I bond or EE bond before its date of full maturity, after an initial period of 12 months, if you cash in the bond in less than 5 years, you lose the last 3 months of interest.
  • Relatively Low Returns: With their lower level of risk, savings bonds also offer lower returns than other investments, even those regarded as safe such as high yield savings accounts and no penalty CDs.
  • Annual Purchase Limits: In any one calendar year for one Social Security Number, you may only buy up to $10,000 in electronic EE bonds, $10,000 in electronic I bonds, and $5,000 in paper I bonds (with your tax refund).

Save safely with Raisin while maintaining access to funds

Raisin’s partner banks and credit unions offer a range of high-yield savings accounts with no fees and a minimal $1 minimum deposit that provide 24/7 online access to your funds. Opening a savings account through the Raisin platform is easier than ever. Head to our savings accounts page to get started.

View offers

The above article is intended to provide generalized financial information designed to educate a broad segment of the public; it does not give personalized tax, investment, legal, or other business and professional advice. Before taking any action, you should always seek the assistance of a professional who knows your particular situation for advice on taxes, your investments, the law, or any other business and professional matters that affect you and/or your business.

Raisin logo
Als Pionier für Spar-, Investment- und Altersvorsorgeprodukte ermöglichen wir Privatkunden einen unkomplizierten Zugang zu globalen Einlagen- und Kapitalmärkten – ein Vorteil, der auch Finanzinstitute stärkt.

Follow us on

The Raisin name and logo are trademarks of Raisin SE. All other trademarks, logos, marks, and brand names are the property of their respective owners.

*APY means Annual Percentage Yield. APY is accurate as of April 25, 2026. Interest rate and APY may change after initial deposit depending on the terms of the specific product selected. Minimum opening deposit is $1.00.

Raisin is not an FDIC-insured bank, and FDIC deposit insurance only covers the failure of an insured bank.

Raisin is not an NCUA-insured credit union. NCUA deposit insurance only covers the failure of an insured credit union.

Raisin does not hold any customer funds. Customer funds are held in various custodial deposit accounts. Each customer authorizes the Custodial Bank to hold the customer’s funds in such accounts, in a custodial capacity, in order to effectuate the customer’s deposits to and withdrawals from the various bank and credit union products that the customer requests through Raisin.com. The Custodial Bank does not establish the terms of the bank or credit union products and provides no advice to customers about bank or credit union products offered by the applicable bank or credit union through Raisin.com. Each customer also authorizes the Service Bank to move funds among the various banks and credit unions at the customer’s request. First International Bank & Trust (FIBT), Member FDIC, is the Service Bank. Bell Bank and Starion Bank, each Member FDIC, are the Custodial Banks.

†Based on $250,000 in FDIC or NCUA insurance coverage per insurable category of ownership at each partner bank or credit union on the Raisin platform (each a "Product Bank"), when aggregated with all other deposits held by you at such Product Bank and in the same insurable category. Deposits made through Raisin will be eligible to receive deposit insurance from the FDIC or the NCUA (each a "Deposit Insurer") in accordance with and up to the maximum amount permitted by law at each Product Bank. Raisin is not a bank or credit union and does not hold any customer funds. Funds are held at FDIC-insured banks and NCUA-insured credit unions. Deposit insurance covers the failure of an insured bank or credit union. Certain conditions must be satisfied for pass through deposit insurance coverage to apply. Customers may choose to deposit funds with identically registered accounts at different Product Banks on the Raisin platform to be eligible for Deposit Insurer coverage up to $10 million for individual accounts and $20 million for joint accounts when at least 40 Product Banks are utilized. Please be aware, however, that any deposits you have at a Product Bank, whether through the Raisin platform or outside the Raisin platform, that you may hold in the same capacity (such as in an individual capacity or joint capacity) count toward the applicable Deposit Insurer's deposit insurance maximum amount, and any such amounts that you hold in the same capacity at a Product Bank that exceed the maximum insurance coverage by the applicable Deposit Insurer will not be insured. For more information on FDIC deposit insurance, please see here. For more information on the NCUA share insurance fund, please see here. You are solely responsible for monitoring the amount of funds you have on deposit at each a Product Bank, whether through the Raisin platform or outside the Raisin platform, to confirm that the deposits you hold in the same capacity at each Product Bank do not exceed the maximum deposit insurance coverage provided by the applicable Deposit Insurer.