41 & 63) were statutes of the United Kingdom which equalized import duties for sugar from British colonies.

The acts, combined with the recent abolition of slavery, had a devastating effect on the profits of the Caribbean plantocracy, which had previously enjoyed reduced import duties.

The rise of European sugar beet as a cheap alternative to sugarcane further worsened their position.

Plantation owners in the West Indies felt betrayed by the legislation,[citation needed] as they had understood that the tariff protection would remain in place as a quid pro quo for their agreement to the abolition of slavery eight years earlier.

The trade liberalization resulted in considerable consumption gains for British consumers and a reduced deadweight loss.