Credit Corp buys bad debts to collect them, and is Australia's largest listed debt collector. (Lukas Coch/AAP PHOTOS)Credit Corp buys bad debts to collect them, and is Australia's largest listed debt collector. (Lukas Coch/AAP PHOTOS) Credit: AAPAustralia's largest listed debt collector has turned a record profit after taking a tougher stand on collections in the United States. The debts that Credit Corp acquires, generally from banks and utilities, are typically more than six months in arrears. Credit Corp predicted it would make a full-year profit of $110 million to $118 million in 2026/27.