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Why did the American colonies boycott British imports before the Revolutionary War?

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American Revolution *The Surrender of Lord Cornwallis* (at Yorktown, Virginia, on October 19, 1781), oil on canvas by John Trumbull, completed in 1820; in the U.S. Capitol Rotunda, Washington, D.C. The painting captures the moment when major fighting during the American Revolution ended and the colonies achieved independence.

American colonists utilized boycotts, known as Nonimportation Agreements, as a primary economic weapon to challenge British authority and secure their political rights. These boycotts were organized by groups such as the Sons of Liberty and merchants to pressure the British Parliament into repealing unpopular legislation, including the Stamp Act and the Townshend Acts.1

The fundamental motivation for these boycotts was the colonial belief that taxation without representation was unconstitutional. Colonists maintained that, as British subjects, they could only be taxed by their own consent through representative assemblies. By curtailing trade, the colonists aimed to inflict economic hardship on British merchants and manufacturers, who would then lobby Parliament for the repeal of the burdensome duties.231

This strategy was employed repeatedly throughout the pre-revolutionary period, culminating in the formation of the Association by the First Continental Congress in 1774 to organize a widespread boycott of British goods in response to the Intolerable Acts.4