Redemptioners were European immigrants, generally in the 18th or early 19th century, who gained passage to American Colonies (most often Pennsylvania) by selling themselves into indentured servitude to pay back the shipping company which had advanced the cost of the transatlantic voyage. British indentured servants generally did not arrive as redemptioners after the early colonial period due to certain protections afforded them by law. Redemptioners were at a disadvantage because they negotiated their indentures upon arrival after a long and difficult voyage with no prospect to return to their homelands.
Up until the American Revolutionary War, some convicts from the United Kingdom were transported to the American Colonies and served out their time as indentured servants before receiving an official pardon. Labor was in demand in North America and so free persons were also recruited. Those who could not afford to pay their own way, came under indentures which obligated them to work for no wages until their land and sea transportation and other expenses had been covered. Because of abuse of the system, which included lying to recruits and even shanghaiing them, the British Parliament enacted laws protecting British subjects from the worst abuses. The law required that the specific terms and conditions of servitude be approved by a magistrate in Great Britain, and that any indentures not bearing a magistrate's seal were unenforceable in the colonies. This resulted in British indentured servants becoming less attractive to potential colonial masters. A similar law was passed in Ireland in an act of Parliament whereby in return for passage to America, the servant gave the purchaser of his indenture all rights to his labour for an agreed period of time, usually four years. Once a candidate for indentured servitude was identified, the emigration agent or visiting ship captain negotiated a binding contract detailing the terms and benefits, and the contract presented before a local magistrate.