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What are US Treasury Bills? How Do They Work?

By Wayne Ingram
Dec 10, 2025
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 US Treasury bills are short-term debt obligations issued by the US government. They are considered to be one of the safest investments available, and they can be a good way to park cash for a short period of time or to diversify your investment portfolio. Let's take a closer look.

What are US Treasury Bills?

US Treasury bills, also known as T-bills, are short-term debt obligations issued by the US government. They are considered to be one of the safest investments available, and they can be a good way to park cash for a short period of time or to diversify your investment portfolio.

T-bills are sold at a discount to their face value and mature in one year or less. The interest you earn on a T-bill is the difference between the purchase price and the face value.

T-bills are auctioned off by the US Treasury Department every week. You can buy T-bills through a broker or directly from the Treasury Department.

How do T-bills work?

When you buy a T-bill, you are essentially lending money to the US government. The government agrees to pay you back the face value of the T-bill plus interest on the maturity date.

The interest rate on T-bills is determined at auction. The auction is competitive, meaning that the highest bidders will win the T-bills. The interest rate on T-bills is typically lower than the interest rate on other investments, such as bonds and stocks. However, T-bills are considered to be safer than other investments.

Benefits of investing in T-bills

Safety: T-bills are backed by the full faith and credit of the US government, which means that they are considered to be very safe investments.

Liquidity: T-bills can be easily bought and sold, making them a liquid investment.

Variety of maturities: T-bills are issued with a variety of maturities, from four weeks to one year. This allows investors to choose the maturity that best meets their needs.

Low fees: T-bills have relatively low fees associated with them.

Drawbacks of investing in T-bills

Low-interest rates: The interest rates on T-bills are typically lower than the interest rates on other investments, such as bonds and stocks.

Inflation risk: T-bills are not inflation-protected, which means that the value of your investment could decrease over time if inflation rises.

Credit risk: There is always a small risk that the US government could default on its debt. However, this risk is very low.

Who should invest in T-bills?

Conservative investors: T-bills are a good investment for conservative investors who are looking for a safe place to park their cash.

Investors with a short-term time horizon: T-bills are a good investment for investors with a short-term time horizon, such as investors who are saving for a down payment on a house or a new car.

Investors who want to diversify their portfolios: T-bills can be a good way to diversify your investment portfolio. By adding T-bills to your portfolio, you can reduce your overall risk.

How to buy T-bills

Through a broker: You can buy T-bills through a broker. Your broker will charge you a commission for buying and selling T-bills.

Directly from the Treasury Department: You can buy T-bills directly from the Treasury Department through TreasuryDirect. There are no commissions associated with buying T-bills directly from the Treasury Department.

Conclusion:

T-bills are a short-term debt obligation issued by the US government. They are considered to be one of the safest investments available, and they can be a good way to park cash for a short period of time or to diversify your investment portfolio.

What are US Treasury Bills? How Do They Work? - I hope this article was informative.

Disclaimer: The information on this page may have been obtained from third parties and does not necessarily reflect the views or opinions of BitKan. This content is provided for general informational purposes only, without any representation or warranty of any kind, nor shall it be construed as financial or investment advice. BitKan shall not be liable for any errors or omissions, or for any outcomes resulting from the use of this information. Investments in digital assets can be risky. Please carefully evaluate the risks of a product and your risk tolerance based on your own financial circumstances. Products mentioned in this article may not be available in your region.

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