The Old Age Security (OAS, French: Sécurité de la vieillesse) program is a universal retirement pension available to most residents and citizens of Canada who have reached 65 years old.
Old Age Security (OAS) is a monthly payment available to qualifying citizens and permanent residents of Canada who are 65 years old and older.
[4] Prior to 2013, a person needed to apply to Employment and Social Development Canada (ESDC)[5] and meet the eligibility criteria to receive benefits.
Since 2013, the enrolment process has become increasingly automatic as Service Canada are now permitted to use data from Income Tax files.
[12] The OAS payout is subject to the pension recovery tax[13] when the Canada Revenue Agency determines that the recipient's taxable income is greater than 80% of Canadians.