EuropeEvent

Slavery Abolition Act 1833 receives royal assent

When
1833–1835
Where
Palace of Westminster; London
Episodes
2

The Slavery Abolition Act 1833, enacted by the Parliament of the United Kingdom, abolished slavery in most of the British Empire through compensated emancipation. The legislation, driven by the Whig administration, required royal assent, which was granted by King William IV on 28 August 1833. The Act established a £20 million compensation fund for slaveowners, financed by government loans and stock, marking a significant legislative milestone in British imperial history.

Episodes

  1. 28 August 1833 · Palace of WestminsterRoyal Assent

    King William IV granted royal assent to the Slavery Abolition Act on 28 August 1833, completing the legislative process.

  2. 3 August 1835 · LondonCompensation Financing

    The government finalized a £15 million loan to finance the compensation fund for slaveowners.

Background and detail

Background. The Act was legislated by the reforming administration of Whig Prime Minister Charles Grey, 2nd Earl Grey. It ordered the British government to purchase the freedom of all slaves in the British Empire and outlawed the further practice of slavery. The legislation was facilitated by the Reform Act 1832, which removed rotten borough seats and cleared the way for a majority in the House of Commons to push through abolition, largely removing West Indian interests from the chamber.

Legislative Process. In March 1833, Edward Stanley introduced an abolition bill as Secretary of State for the Colonies. The bill passed its second reading in the House of Commons unopposed on 22 July 1833. The third reading and passage occurred on 7 August, after which the bill was sent to the House of Lords. Royal assent was required for the bill to become law, a process involving the assent of all three components of Parliament.

Compensation Fund. The Act established a £20 million compensation fund for slaveowners, amounting to 40% of the Treasury's annual income or approximately 5% of British GDP at the time. To finance the payments, the British government took on a £15 million loan, finalised on 3 August 1835, with banker Nathan Mayer Rothschild and his brother-in-law Moses Montefiore. The remaining £5 million was paid out directly in government stock.

Scope and Exceptions. The Act explicitly delineated 19 separate pots of compensation covering the Caribbean, South Africa, and Mauritius. However, it did not end slavery throughout the entire British sphere of influence. The Act explicitly excluded territories like British India, where slavery was addressed separately by the Indian Slavery Act, 1843. Despite the act being repealed, slavery remains illegal in Britain due to prior court cases.

People involved

Sources

  1. Slavery Abolition Act 1833 Wikipedia, revision of 2026-09-19
  2. William IV Wikipedia, revision of 2026-09-19
  3. Parliament of the United Kingdom Wikipedia, revision of 2026-09-26

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.