The Canada Revenue Agency monitors and implements the tax laws that govern Canadian citizens. The agency was first formed in 1868, following Confederation.
The CRA has had many names over its history including the Department of National Revenue, the Department of Inland Revenue and the Canada Customs and Revenue Agency, or simply Revenue Canada. In December 2003, the name was officially changed to the Canada Revenue Agency, due to the separation of the Canadian customs enforcement from revenue matters.
As of 2015, the CRA focuses solely on revenue matters, with a specific focus on tax law, and administering social and economic benefit programs to Canadian citizens.