How a bond’s coupon payment is set
When a bond is issued, it carries a face value (also called par, usually $1,000) and a coupon rate — the annual interest it promises as a percentage of that face value. The coupon payment is just that promise turned into cash: multiply the face value by the coupon rate to get the yearly interest, then split it across however many payments the bond makes each year. Because both the face value and the rate are fixed at issue, every coupon cheque is identical and predictable for the life of the bond, which is exactly why bonds are called fixed-income.
The coupon payment formula
Coupon payment = Face value × Coupon rate ÷ Payments per year
where Face value is the bond’s par amount, Coupon rateis the stated annual rate, and Payments per year is the frequency (2 for semi-annual, 4 for quarterly, 1 for annual). The annual coupon is simply Face value × Coupon rate; dividing by frequency gives the per-period cheque.
What makes this calculator different
- Per-period and annual coupon side by side. See both the individual payment you receive each period and the full yearly total, so the effect of payment frequency is obvious at a glance.
- Total interest over the bond’s life. It sums every coupon from issue to maturity, showing the full dollar income the bond delivers — not just a single payment.
- Any payment frequency. Annual, semi-annual, quarterly, monthly, or anything in between — the per-period amount recomputes instantly while the annual total stays consistent.
To work in the other direction — recovering the rate from a known cash payment — use the coupon rate calculator.
Frequently asked questions
What is a coupon payment and how is it calculated?+
A coupon payment is the fixed amount of cash a bond pays its holder on each scheduled date. It is set at issue and does not change over the bond’s life. The formula is simply: coupon payment = face value × coupon rate ÷ payments per year. So a $1,000 bond with a 5% annual coupon paid semi-annually pays $1,000 × 0.05 ÷ 2 = $25 every six months, or $50 per year in total.
How often are bond coupons paid?+
Most US corporate and Treasury bonds pay coupons semi-annually — twice a year, every six months. Other frequencies exist: some bonds pay annually, quarterly, or even monthly, and the choice affects the size of each individual cheque. The annual total is the same regardless of frequency, but more frequent payments are worth slightly more to the holder because cash arrives sooner. This calculator lets you set any payment frequency and recomputes the per-period amount accordingly.
Does the coupon payment change with the bond’s market price?+
No. The coupon payment is fixed in dollar terms at issue and is calculated from the bond’s face value, not its current market price. If a $1,000 bond paying $50 a year drops to $900 in the market, it still pays $50 — the dollar coupon is unchanged. What changes is the yield: the same $50 now represents a higher percentage return on the lower price. This is why a falling price pushes a bond’s yield up.
What is the difference between a coupon payment and a coupon rate?+
The coupon rate is a percentage of the face value, while the coupon payment is the actual dollar cheque that percentage produces. A 5% coupon rate on a $1,000 bond is the rate; the $50 a year (or $25 twice a year) it pays out is the payment. The rate is fixed and stated on the bond; the payment is what you derive from it.
What is accrued interest?+
Accrued interest is the portion of the next coupon that has been earned but not yet paid, measured from the last coupon date up to the settlement date. When you buy a bond between coupon dates, you pay the seller this accrued interest on top of the price, because the seller held the bond for part of the period and is owed their share. On the next payment date the buyer then receives the full coupon, which makes them whole. It is calculated by prorating the coupon over the days elapsed in the period.
Disclaimer: This calculator is foreducation and illustration only. It computes scheduled coupon cash flows from a bond’s stated terms and does not account for defaults, taxes, call features, or reinvestment. Nothing here is investment, tax, or trading advice.