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Treasury Bills (T-Bills)

Financial instruments issued by the U.S. Treasury with maturity periods less than 1 year

What are Treasury Bills (T-Bills)?

Treasury Bills (or T-Bills for short) are a short-term financial instrument that is issued by the US Treasury with maturity periods ranging from a few days up to 52 weeks (one year). They are considered among the safest investments since they are backed by the full faith and credit of the United States Government.

When an investor buys a Treasury Bill, they are lending money to the government. The US Government uses the money to fund its debt and pay ongoing expenses such as salaries and military equipment. T-Bills are sold in denominations ranging from $1,000 (standard) up to a maximum of $5 million.

Treasury Bills (T-Bills) Illustration of Returns

Example of Treasury Bills

Treasury bills are sold at a discount to the par value, which is its actual value. For example, a Treasury bill with a par value of $10,000 may be sold for $9,500. The US Government, through the Department of Treasury, promises to pay the investor the full face value of the T-bill at its specified maturity date.

Upon maturity, the government will pay the investor $10,000, resulting in a profit of $500. The amount of profit earned from the payment is considered the interest earned on the T-bill.

The difference between the face value of the T-bill and the amount that an investor pays is called the discount rate, which is calculated as a percentage. In this case, the discount rate is 5% of the face value.

Get T-Bill rates directly from the US Treasury website.

How to Purchase Treasury Bills

Treasury bills can be purchased in the following three ways:

1. Non-competitive bid

In a non-competitive bid, the investor agrees to accept the discount rate determined at auction. The yield that an investor receives is equal to the average auction price for T-bills sold at auction. Individual investors prefer this method since they are guaranteed to receive the full amount of the bill at the expiry of the maturity period. Payment is made through TreasuryDirect or the investor’s bank or broker.

2. Competitive bidding auctions

In a competitive bidding auction, investors buy T-bills at a specific discount rate that they are willing to accept. Every submitted bid states the lowest rate or discount margin that the bidder/investor is willing to accept. Bids accepting the lowest discount rate are accepted first.

If there are not enough bids at that level to make the issue fully subscribed, then bids at the next lowest rate are accepted. The process continues until the entire issue has been sold.  Purchase payments must be made either through a bank or a broker.

3. Secondary market

Investors can buy or sell Treasury bills on the secondary market. Also, there are mutual funds and Exchange-Traded Funds (ETFs) that hold previously issued T-bills.

Factors that Affect Treasury Bill Prices

Like other types of debt securities, the price of T-bills and the return for investors may be affected by various factors such as macroeconomic conditions, investor risk tolerance, inflation, monetary policy, and specific supply and demand conditions for T-bills.

Monetary Policy

The Federal Reserve’s monetary policy is likely to affect the T-bill price. T-bill interest rates tend to move closer to the interest rate set by the Fed, known as the Fed(eral) Funds rate. However, a rise in the Federal Funds rate tends to attract investment in other debt securities, resulting in a drop in the T-bill interest rate (due to lower demand). The decline continues until the T-bill interest rate rises above the Federal Funds rate.

Maturity Period

The maturity period of a T-bill affects its price. For example, a one-year T-bill typically comes with a higher rate of return than a three-month T-bill. The explanation for this is that longer maturities mean additional risk for investors.

For example, a $1,000 T-bill may be sold for $970 for a three-month T-bill, $950 for a six-month T-bill, and $900 for a twelve-month T-bill. Investors demand a higher rate of return to compensate them for tying up their money for a longer period of time.

Risk Tolerance

An investor’s risk tolerance levels also affect the price of a T-bill. When the U.S. economy is going through an expansion and other debt securities are offering a higher return, T-bills are less attractive and will, therefore, be priced lower. However, when the markets and the economy are volatile and other debt securities are considered riskier, T-bills command a higher price for their “safe haven” quality.

Inflation

The price of T-bills can also be affected by the prevailing rate of inflation. For example, if the inflation rate stands at 5% and the T-bill discount rate is 3%, it becomes uneconomical to invest in T-bills since the real rate of return will be a loss. The effect of this is that there is less demand for T-bills, and their prices will drop.

Difference between T-Bills, T-Notes, and T-Bonds

T-bills, T-notes, and T-bonds are fixed-income investments issued by the US Department of the Treasury when the government needs to borrow money. They are all commonly referred to as “Treasuries.”

T-Bills

Treasury bills have a maturity of one year or less, and they do not pay interest before the expiry of the maturity period. They are sold in auctions at a discount from the par value of the bill. They are offered with maturities of 28 days (one month), 91 days (3 months), 182 days (6 months), and 364 days (one year).

T-Notes

Treasury notes have a maturity period of two to ten years. They come in denominations of $1,000 and offer coupon payments every six months. The 10-year T-note is the most frequently quoted Treasury when assessing the performance of the bond market. It is also used to show the market’s take on macroeconomic expectations.

T-Bonds

Treasury bonds have the longest maturity among the three Treasuries. They have a maturity period of between 20 years and 30 years, with coupon payments every six months. T-bond offerings were suspended for four years between February 2002 and February 2006. T-bond offerings resumed due to demand from pension funds and other long-term institutional investors.

More Resources

Thank you for reading CFI’s guide on Treasury Bills (T-Bills). To continue learning and advancing your career, these additional resources will be helpful:

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