Debt is that which is owed. A person or company owing debt is called a debtor. An entity to whom debt is owed is called a creditor. Debt is used to borrow purchasing power from the future. Companies use debt as a part of their overall corporate finance strategy.

People or organizations often enter into agreements to borrow something. Both parties must agree on some standard of deferred payment, usually a sum of money denominated as units of a currency, but sometimes goods. For instance, one may borrow shares, in which case, one may pay for them later with the shares, plus a premium for the borrowing privilege, or the sum of money required to buy them in the market at that time.

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