Glossary term
Coupon Rate
A coupon rate is the annual interest rate a bond issuer promises to pay based on the bond's face value.
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What Is a Coupon Rate?
A coupon rate is the annual interest rate a bond issuer promises to pay based on the bond's face value. It determines the bond's stated interest payment, not necessarily the investor's actual yield.
For example, a $1,000 bond with a 5 percent coupon rate pays $50 per year in interest, usually split into scheduled payments.
Key Takeaways
- The coupon rate is based on a bond's face value.
- It determines the stated interest payment.
- The coupon rate is not the same as current yield or yield to maturity.
- A bond's market price can move above or below face value.
- Coupon rate, price, maturity, credit quality, and interest rates all affect total return.
Coupon Rate Formula
A simple coupon rate formula is:
If a bond pays $60 per year and has a $1,000 face value, the coupon rate is 6 percent.
Coupon Rate Versus Yield
Measure | What it shows |
|---|---|
Coupon rate | Interest payment as a percentage of face value |
Current yield | Annual interest payment as a percentage of current market price |
Yield to maturity | Estimated annualized return if held to maturity, including price and coupon effects |
Income and Price Context
The coupon rate tells investors how much stated interest a bond pays. But it does not tell the whole story. If a bond trades below face value, the investor's yield may be higher than the coupon rate. If it trades above face value, the yield may be lower.
That is why investors should compare coupon rate with price, maturity, credit risk, call features, and yield measures.
How Price Changes the Yield
The coupon rate is fixed for many bonds, but the market price can change every day. If interest rates rise after a bond is issued, an older bond with a lower coupon may trade at a discount. If interest rates fall, an older bond with a higher coupon may trade at a premium. The coupon payment may stay the same while the investor's yield changes.
This is why a bond paying a 5% coupon is not automatically a 5% return. An investor who buys the bond below face value may earn more than the coupon rate if the bond is held to maturity and repaid at par. An investor who buys above face value may earn less.
What to Compare
Coupon rate is most useful when paired with current yield, yield to maturity, credit quality, maturity date, call features, tax treatment, and purchase price. A high coupon can be attractive, but it may also reflect older market rates, credit risk, or a bond trading at a premium.
Callable bonds deserve special attention. If a bond has a high coupon and the issuer can call it, the investor may not receive those payments for as long as expected. Yield to call may be more relevant than yield to maturity when a call is likely.
Portfolio Income Context
Coupon rate is especially visible for investors who use bonds for income planning. The scheduled coupon payments may help fund spending needs, but the market value of the bond can still rise or fall before maturity.
That creates a distinction between cash income and total return. A bond can keep paying its coupon while showing an unrealized loss if market rates rise or credit spreads widen. Investors should understand both the payment stream and the price risk.
Coupon rate also affects reinvestment planning. A bond may pay steady interest, but the investor has to decide what to do with each coupon payment. If market rates are lower when the payments arrive, reinvested coupons may earn less than the original bond's stated rate.
The Bottom Line
The coupon rate is the stated annual interest rate on a bond based on face value. It is useful, but investors should not mistake it for the bond's full expected return.