Why did the british impose new taxes on the colonies after the french and indian war

To pay for the French and Indian War.

Explanation:

Britain imposed taxes on the English colonies because they needed the money to get rid of war debts. The debts were growing enormous after the French and Indian war in America. Britain government needed a way to pay the debts. Britishers decided to introduce acts in the colonies as the colonies were part of the British Empire. Taxes  included the Stamp Act, Townsend Acts.