Glossary term

Term Structure of Interest Rates

The term structure of interest rates shows how yields differ across maturities for debt with similar credit quality.

Updated

May 18, 2026

Read time

3 min read

What Is the Term Structure of Interest Rates?

The term structure of interest rates is the relationship between interest rates and the time remaining until debt instruments mature. It shows how yields differ across short, intermediate, and long maturities for debt with similar credit quality.

The term structure is often shown as a yield curve. A Treasury yield curve, for example, plots Treasury yields from short-term bills to long-term notes and bonds.

Key Takeaways

  • The term structure shows yields across different maturities.
  • A yield curve is the common visual form of the term structure.
  • Upward-sloping curves often reflect higher long-term yields than short-term yields.
  • Flat or inverted curves can signal changing growth, inflation, or policy expectations.
  • Bond prices, lending rates, valuation models, and economic forecasts often use term-structure information.

How the Term Structure Works

Investors usually require different yields for lending money over different periods. A one-month Treasury bill, a two-year note, and a ten-year note all have different maturities, liquidity characteristics, and sensitivity to interest-rate expectations.

The term structure reflects expectations for future short-term rates, inflation, real growth, risk premiums, central bank policy, supply and demand, and market liquidity. It is not one pure signal. It is a market price shaped by several forces at once.

Common Yield Curve Shapes

Shape

What It Looks Like

Common Interpretation

Upward sloping

Long-term yields above short-term yields

Normal growth and term premium conditions

Flat

Short and long yields close together

Transition, uncertainty, or policy tension

Inverted

Short-term yields above long-term yields

Tighter policy or weaker future growth expectations

Humped

Intermediate yields highest

Market expects rates to peak and later fall

Bond and Lending Context

The term structure affects fixed-income pricing because cash flows at different dates are discounted at rates tied to their maturities. It also influences mortgage rates, corporate borrowing costs, bank profitability, pension discounting, and valuation models.

For investors, curve shape can change portfolio risk. Long-duration bonds are more sensitive to rate changes. Short-term instruments reset faster but may reinvest at lower rates if policy rates fall.

What to Watch

Curve signals are useful, but they should not be read mechanically. An inverted curve has often attracted attention as a recession warning, yet timing, magnitude, policy backdrop, and credit conditions matter.

The strongest analysis asks which part of the curve moved and why. A rise in long-term yields can mean stronger growth expectations, higher inflation risk, heavier debt supply, or a higher term premium. Those are different stories.

Curve changes can also affect practical borrowing and investing decisions. A steep curve may reward extending maturity, while an inverted curve can make short-term income attractive but create reinvestment risk if rates later fall.

The Bottom Line

The term structure of interest rates shows the market price of lending money over different horizons. It is central to bond pricing and economic interpretation because maturity changes the meaning of an interest rate.

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