Why did colonists object to the Stamp Act?

Colonists objected to the Stamp Act of 1765 because it taxed them without their consent, since they had no elected representatives in the British Parliament that imposed the law. The Act passed Parliament under Prime Minister George Grenville on March 22, 1765 and took effect on November 1, 1765, requiring an embossed revenue stamp on most printed materials including newspapers, pamphlets, legal documents, contracts, court papers, ship clearances, almanacs, college diplomas, and even playing cards. It was the first direct internal tax Parliament had ever imposed on the colonies, distinct from earlier external trade duties that colonists had grudgingly accepted.

The objection unfolded on three levels. The constitutional objection rested on the principle, drawn from Magna Carta of 1215 and the English Bill of Rights of 1689, that no free people could be taxed without the consent of their elected representatives. Colonial assemblies had been raising their own taxes for more than a century by 1765, and colonists held that those assemblies played the role for them that Parliament played for Englishmen at home. Daniel Dulany of Maryland in his 1765 pamphlet Considerations on the Propriety of Imposing Taxes dismantled the British counterargument of virtual representation, the claim that members of Parliament represented all British subjects regardless of whether they could vote. Patrick Henry of Virginia introduced the Virginia Resolves on May 30, 1765 declaring that only the Virginia legislature could tax Virginians.

The political objection feared that taxation without consent could escalate. If Parliament could tax stamps, it could tax anything, and the revenue could be used to pay royal governors and judges who would no longer depend on colonial assemblies for their salaries. James Otis of Massachusetts had argued in 1761 during the writs of assistance case that taxation without representation was tyranny.

The economic objection focused on the practical burden. The Stamp Act required payment in scarce hard currency at a time when the Currency Act of 1764 had banned colonial paper money and the post-war recession was already cutting incomes. The required stamps would touch every commercial and legal transaction, raising costs across the colonial economy.

Resistance was swift and organized. The Stamp Act Congress met in New York City from October 7 to October 25, 1765 with 27 delegates from nine colonies and adopted a Declaration of Rights and Grievances. Sons of Liberty mobs in Boston, New York, Charleston, and other cities forced stamp distributors to resign. Merchant nonimportation agreements cut British exports to the colonies by about 14 percent in 1765 and 1766. Parliament repealed the Stamp Act on March 18, 1766 under pressure from British merchants but on the same day passed the Declaratory Act asserting parliamentary supremacy.