Investment Types

Treasury Bill: Definition

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Simple Definition

A short-term U.S. government bond that matures in one year or less.

Why It Matters

Treasury bills (T-bills) are the shortest U.S. government debt — maturing in a year or less. They're considered among the safest places to park money, which is why their yield is often used as a stand-in for the "risk-free rate" that other investments are compared against.

Key Points

  • Maturities range from a few weeks up to one year
  • Sold at a discount and repaid at face value, rather than paying a coupon
  • Widely used as the short-term "risk-free" benchmark

Learn More

Foundation Lesson

Treasury Bonds Explained

Get a complete explanation with examples, key takeaways, and a quiz to test your knowledge.

Related Terms

Common Questions

A short-term U.S. government bond that matures in one year or less. Treasury bills (T-bills) are the shortest U.S.

Treasury bills (T-bills) are the shortest U.S. government debt — maturing in a year or less. They're considered among the safest places to park money, which is why their yield is often used as a stand-in for the "risk-free rate" that other investments are compared against.

Maturities range from a few weeks up to one year

Sold at a discount and repaid at face value, rather than paying a coupon

Widely used as the short-term "risk-free" benchmark