Glossary term
Coupon
A coupon is the stated interest rate or periodic interest payment a bond issuer promises to pay on a bond's face value.
Updated
Read time
What Is a Coupon?
A coupon is the stated interest rate or periodic interest payment on a bond. If a bond has a $1,000 face value and a 5% annual coupon, it pays $50 of interest per year, usually in scheduled installments.
The word comes from the era when paper bonds included detachable coupons that investors clipped and submitted for payment. Modern bonds are usually electronic, but the term still describes the bond's promised interest cash flow.
Key Takeaways
- A coupon is the bond's stated interest rate or interest payment.
- Coupon payments are usually based on face value, not the price an investor paid for the bond.
- A bond's coupon rate is different from its current yield, yield to maturity, and total return.
- Higher coupons provide more periodic cash flow but do not automatically make a bond better.
- Credit risk, maturity, call features, taxes, inflation, and market price all affect the actual investment result.
How a Coupon Works
The coupon rate is applied to the bond's face value. The annual coupon payment is:
A $1,000 bond with a 6% coupon pays $60 per year. If it pays semiannually, the investor receives $30 every six months. If the same bond trades for $950 or $1,050 in the secondary market, the coupon payment remains $60 because it is based on face value.
Coupon Rate Versus Yield
The coupon rate is fixed by the bond terms unless the bond is floating rate or has a step-up or other variable structure. Yield measures return based on price, timing, maturity, call features, and reinvestment assumptions. That means a bond with a 5% coupon can have a yield above or below 5% depending on what investors pay for it.
If a $1,000 face-value bond with a 5% coupon sells for $900, its current yield is higher than 5% because the $50 annual payment is measured against a lower price. If it sells for $1,100, current yield is lower than 5%. Yield to maturity goes further by including the gain or loss as the bond moves toward par at maturity.
What the Coupon Tells You
Coupon feature | Investor interpretation |
|---|---|
High coupon | More current income, but possibly higher credit risk, older issuance, or call risk. |
Low coupon | Less current income, often more price sensitivity to rate changes. |
Zero coupon | No periodic interest; return comes from buying below face value and receiving par at maturity. |
Floating coupon | Interest payments reset based on a benchmark or formula. |
Cash Flow and Reinvestment
Coupon payments are important for investors who need income, such as retirees, endowments, insurers, or bond funds with distribution targets. The timing and stability of payments can help match liabilities or spending needs.
Reinvestment risk matters too. A high-coupon bond returns more cash along the way, but the investor may have to reinvest those payments at lower rates. A zero-coupon bond avoids interim reinvestment of coupons but can be more volatile because all cash flow arrives at maturity.
Credit, Calls, and Taxes
A coupon is a promise, not a guarantee. The issuer must remain able and willing to pay. Credit risk can cause a high-coupon bond to trade at a discount if investors doubt payment. Callable bonds can also complicate coupon analysis because an issuer may redeem the bond when the coupon becomes expensive relative to market rates.
Taxes can change the value of a coupon. Municipal bond interest may receive different tax treatment from corporate bond interest, depending on the investor and jurisdiction. Taxable investors should compare after-tax yield, not coupon alone.
The Bottom Line
A coupon is the bond's stated interest cash flow. It helps define income, but it is only one part of bond analysis. Price, yield, maturity, credit quality, call features, taxes, inflation, and reinvestment assumptions determine what the investor actually earns.