In 1927, the Department of National Revenue Act was enacted by Parliament, which changed the name of the department from Customs and Excise to National Revenue, while retaining its earlier mandate. The Department of National Revenue would gain increasing responsibility as new social programs, such as the Canada Pension Plan, and new streams of revenue, such as the Goods and Services Tax were gradually introduced over the latter half of the 20th century. In 1993, EFILE was first made available to Canadian taxpayers wishing to submit their taxes electronically.