Supplementary Convention on the Abolition of Slavery in the context of "Debt slavery"

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.

In 2021, the International Labour Organization estimated that, of the 27.6 million people currently participating in forced labour, 20.9%, or about 5.8 million, were in debt bondage. Debt bondage has been described by the United Nations as a form of "modern day slavery", and the Supplementary Convention on the Abolition of Slavery seeks to abolish the practice.

The 1926 Slavery Convention or the Convention to Suppress the Slave Trade and Slavery is an international treaty created under the auspices of the League of Nations and first signed on 25 September 1926. It was registered in League of Nations Treaty Series on 9 March 1927, the same day it went into effect. The objective of the convention is to confirm and advance the suppression of slavery and the slave trade and was extended in 1956 with the Supplementary Convention on the Abolition of Slavery, under the auspices of the United Nations.