A ZERO-COUPON bond (also called a discount bond or deep discount bond) is a bond bought at a price lower than its face value with the face value repaid at the time of maturity.
There is no coupon or interim payments, hence the term zero-coupon bond. Investors earn return from the compounded interest all paid at maturity plus the difference between the discounted price of the bond and its par (or redemption) value. In contrast, an investor who has a regular bond receives income from coupon payments, which are usually made semi-annually. The investor also receives the principal or face value of the investment when the bond matures. Zero-coupon bonds may be long or short-term investments.
Long term zero coupon maturity dates typically start at 10 years. The bonds can be held until maturity or sold on secondary bond markets.