The purpose of the tea act was to?

Basically this act didn't really do anything. The British government told the east inda company to go sell all its tea(that was sitting there)to the americas. Americans saw this as a way to help support the taxes that where already in place on tea. This all help lead up to the Boston tea party.

Here is some good sources:
http://www.ushistory.org/declaration/related/teaact.htm
http://en.wikipedia.org/wiki/Tea_Act