Final answer:
The CRA is responsible for determining eligibility for pension and employment insurance under the Canada Pension Plan Act and Employment Insurance Act. Personal income tax is the largest source of federal government revenue, while corporate income tax and payroll taxes also contribute significantly.
Step-by-step explanation:
Under the Canada Pension Plan Act and the Employment Insurance Act, the Canada Revenue Agency (CRA) is responsible for determining eligibility for pension and employment insurance. These Acts are designed to provide a range of social benefits to Canadians, including retirement and disability pensions, death benefits, and temporary income support to eligible workers who are out of work. The funds for these programs come from the taxation patterns for the main categories that the federal government taxes: individual income taxes, corporate income taxes, social insurance, and retirement receipts.
Personal income tax is the largest single source of federal government revenue, as illustrated by figures referenced in the question, although it represents less than half of the total revenue collected. Other significant sources include corporate income tax and payroll taxes. It is important to note that while the CRA is involved in the administration and collection of these taxes, it does not set the actual tax rates; these are determined by legislation passed by the government.