A provision in some
bond indentures allowing the
issuer to
redeem a bond before
maturity using
money it had previously set aside in a
sinking fund. A sinking fund is an account into which the issuer
deposits money on a regular basis in order to
repay the bond at some point in the future. A sinking fund call gives the company the ability to reduce its
debt at its discretion. As with other
callable bonds, a sinking fund call provision may only be exercised after a stated
call date.