The purpose of the British Declaratory Act of 1766 was to

Aproclaim the right of Britain to pass laws regulating the colonies.
Bplace taxes on all British goods imported into the colonies.
Crepeal the Stamp Act.
Destablish British fur-trading rights with the Indians.

Verified Answer :

One of the main purposes of the British Declaratory Act of 1766 was to end the boycotts that were taking place in America over British goods, due to what the colonists saw as unfair taxation.