Coupon Payment Calculator
Enter your bond's face value, annual coupon rate, and payment frequency to instantly see each periodic coupon payment, your total annual income, the full lifetime coupon payout, and the current yield. Add the market price to compare current yield against your stated rate. Results update as you type.
What is a bond coupon payment?
A coupon payment is the regular interest payment a bond issuer makes to bondholders throughout the life of the bond. The name dates to physical bearer bonds that came with detachable paper coupons: investors would tear off the coupon and exchange it for cash at a bank. Today all of this is electronic, but the term stuck. The coupon payment is calculated using the bond's face value (par value) and its stated annual coupon rate. For example, a $1,000 face value bond with a 5% annual coupon rate pays $50 per year in interest, distributed according to the agreed schedule.
How to calculate a coupon payment
The formula is straightforward: Coupon payment = Face Value x (Annual Coupon Rate / Number of Payments Per Year). For a $1,000 bond with a 6% coupon paid semiannually, each payment is $1,000 x (0.06 / 2) = $30. Paid quarterly, it becomes $1,000 x (0.06 / 4) = $15 per quarter. The annual coupon income is always Face Value x Annual Coupon Rate, regardless of payment frequency. Most investment-grade corporate and government bonds pay semiannually in the United States and annually in Europe.
Coupon rate vs current yield
The coupon rate is fixed at issuance and never changes. Current yield, by contrast, changes every day as the bond's market price moves. Current Yield = Annual Coupon Income / Current Market Price. When a bond trades below par (at a discount), current yield is higher than the stated coupon rate because you are paying less than face value to receive the same fixed coupon. When a bond trades above par (at a premium), current yield falls below the coupon rate. A bond trading exactly at par has current yield equal to its coupon rate. Understanding this relationship is essential for comparing bonds with different prices and coupon structures.
Types of coupon structures
Fixed-rate coupons stay constant for the entire life of the bond, which is the most common structure. Variable-rate (floating-rate) coupons reset periodically against a benchmark such as SOFR or LIBOR, with the coupon rate changing at each reset date. Zero-coupon bonds pay no periodic coupons at all: they are sold at a deep discount and the entire return comes from the difference between the purchase price and the face value at maturity. Step-up coupons increase at predetermined dates, and deferred coupons pay nothing in early periods before beginning payments. This calculator covers fixed-rate coupon bonds.
Coupon Rate vs. Current Yield: Key Relationship
| Bond Trades At | Market Price vs Par | Current Yield vs Coupon Rate |
|---|---|---|
| Par | Market price = Face value | Current yield = Coupon rate |
| Premium | Market price > Face value | Current yield < Coupon rate |
| Discount | Market price < Face value | Current yield > Coupon rate |
How the relationship between coupon rate and current yield changes depending on where the bond trades relative to par value.
Frequently asked questions
What is the difference between coupon rate and yield?
The coupon rate is fixed when the bond is issued and does not change. It determines the dollar amount paid each period. Yield (specifically current yield or yield to maturity) reflects the actual return you earn based on the price you pay. If you buy a $1,000 bond with a 5% coupon for $900, your current yield is $50 / $900 = 5.56%, which is higher than the stated 5%.
How often are coupon payments made?
It depends on the bond's terms. US corporate and Treasury bonds typically pay semiannually (twice a year). European bonds commonly pay annually. Some bonds pay quarterly or monthly, which is more common in mortgage-backed securities and certain corporate structures. The payment frequency is stated in the bond's prospectus and does not change over the bond's life.
Do coupon payments change if interest rates rise?
No, the coupon payment on a fixed-rate bond stays constant regardless of what happens to market interest rates. What changes is the market price of the bond. When market rates rise above the coupon rate, the bond's price falls (to a discount) so that new buyers earn a competitive yield. When rates fall, the bond's price rises (to a premium).
What happens to coupon payments if a bond trades at a discount?
The coupon payment amount is unchanged; only the price you paid differs. But your current yield is higher than the stated coupon rate because you paid less than face value. At maturity you also receive the full face value, not the discounted price you paid, which means your total return (yield to maturity) is even higher than the current yield.
What is accrued interest and how does it relate to coupons?
Accrued interest is the portion of the next coupon payment that has built up since the last payment date. When you buy a bond between coupon dates, you pay the clean price plus accrued interest (together called the dirty price), because the seller has earned a share of the upcoming coupon. At the next payment date you receive the full coupon, which includes the amount you effectively advanced to the seller.