A debtors' prison is a prison for people who are unable to pay debt. Until the mid-19th century, debtors' prisons were a common way to deal with unpaid debt in Western Europe. Destitute people who were unable to pay a court-ordered judgment would be incarcerated in these prisons until they had worked off their debt via labour or secured outside funds to pay the balance. The product of their labour went towards both the costs of their incarceration and their accrued debt. Increasing access and lenience throughout the history of bankruptcy law have made prison terms for unaggravated indigence obsolete over most of the world.

Debt bondage, also known as debt slavery, bonded labour, or peonage, is the pledge of a person's services as security for the repayment for a debt or other obligation. Where the terms of the repayment are not clearly or reasonably stated, or where the debt is excessively large the person who holds the debt has thus some control over the laborer, whose freedom depends on the undefined or excessive debt repayment. The services required to repay the debt may be undefined, and the services' duration may be undefined, thus allowing the person supposedly owed the debt to demand services indefinitely. Debt bondage can be passed on from generation to generation.