What Is Old Age Security (OAS) and How Does It Work?

Old Age Security can look like another version of the Canada Pension Plan because both can provide monthly retirement income. The similarity mostly ends there. You do not build OAS by making payroll contributions, and you do not need a Canadian employment history to qualify. How long you have lived in Canada matters much more.

Old Age Security (OAS) is a taxable monthly federal pension for people aged 65 and older who meet Canada’s legal-status and residence requirements. It is funded from general tax revenues rather than individual contributions. Your employment history does not determine eligibility, although your residence history and income can affect how much OAS you receive.

That makes OAS one of the retirement programs newcomers and long-time Canadian residents can experience very differently. Two people of the same age can have similar incomes and still receive different OAS pensions because one has fewer years of Canadian residence after age 18.

How Old Age Security Works

OAS is a residence-based public pension. Unlike the Canada Pension Plan, it is not funded through contributions deducted from your paycheque. The OAS program is funded from general tax revenues, and qualifying for the pension does not depend on having paid into an individual OAS account.

The normal starting age is 65 in 2026. You can receive OAS while working, and someone who has never worked can still qualify. Employment history itself is not an OAS eligibility requirement. Instead, the core factors are your age, legal status and how long you have lived in Canada after turning 18.

Income enters the picture differently. It does not replace the residence test, but sufficiently high income can cause part or all of your pension to be recovered through the OAS recovery tax. At the other end of the income scale, lower-income OAS recipients living in Canada may qualify for the Guaranteed Income Supplement (GIS).

We find that separating those three questions makes OAS much easier to understand. Residence helps determine whether you qualify and whether you receive a full or partial pension. Age affects when you can start and the rate available to you. Income can affect how much you ultimately keep.

Who Can Qualify for OAS?

To receive OAS while living in Canada in 2026, you generally need to be at least 65, be a Canadian citizen or legal resident when your pension application is approved, and have lived in Canada for at least 10 years after age 18. The current OAS eligibility requirements contain additional rules for certain situations involving time outside Canada.

The requirements change when you live outside Canada. Generally, you must have been a Canadian citizen or legal resident immediately before leaving Canada and have accumulated at least 20 years of Canadian residence after age 18 to receive OAS abroad. Canada’s social security agreements can help some people qualify when they have lived or worked in another participating country.

Residence deserves more attention than it usually gets because simply being 65 does not guarantee an OAS pension. Our guide to OAS residency requirements covers the 10-year, 20-year and 40-year rules separately, while OAS eligibility in Canada looks at the broader qualification rules.

Most importantly, do not use CPP eligibility as a shortcut for deciding whether you qualify for OAS. A person can qualify for one and not the other because the programs measure different things.

Full OAS vs. Partial OAS

For most people reaching retirement today, a full OAS pension generally requires 40 years of residence in Canada after age 18. Someone with at least the required minimum residence but fewer than 40 years may instead qualify for a partial pension.

A partial pension is based on the number of qualifying years of Canadian residence divided by 40. Therefore, each qualifying year represents 1/40 of the full pension. The OAS payment calculation also takes account of factors such as your age when payments begin and your income.

There are special rules for some people with residence in Canada before July 1, 1977, so the 40-year rule is not the only route to a full pension. For most current applicants, though, counting residence after age 18 is the practical starting point.

Another useful rule is easy to miss. Once a partial OAS pension has been approved, additional years of residence in Canada do not increase the fraction used to calculate that pension. Someone deciding when to start a partial pension should therefore understand the residence calculation before applying rather than assuming the fraction will keep rising afterward.

How Much Is OAS in 2026?

OAS does not have one permanent monthly payment. Rates are reviewed four times a year, so an amount quoted early in 2026 may already be outdated later in the year.

For July through September 2026, the maximum monthly OAS pension is $751.97 for people aged 65 to 74 and $827.17 for people aged 75 and older. These are maximum full-pension amounts, not what every recipient automatically receives. The current OAS payment tables are updated as the quarterly rates change.

The higher amount after age 75 comes from a permanent 10% increase. Under the Old Age Security Act, the increase applies beginning in the month after the month in which an eligible pensioner turns 75.

Your own payment can be lower because you receive a partial pension, have income subject to the recovery tax or started from a different base amount after deferring OAS. Our article on the maximum OAS payment deals with the payment figures in more detail, while the OAS calculator is intended for estimating an individual amount.

OAS Payments Change With Inflation

OAS is indexed to the cost of living. Payment rates are reviewed in January, April, July and October using changes in the Consumer Price Index (CPI). If the cost of living rises, OAS benefits can increase. If the CPI falls, the legislation prevents the OAS pension from being reduced because of that decline.

For example, OAS benefits increased by 1.2% for the July to September 2026 quarter compared with the previous quarter. The announced increase for October to December 2026 is 1.4% compared with the July-to-September quarter. Because these adjustments happen quarterly, copying an old monthly maximum into a retirement budget is an easy way to end up using the wrong figure.

Our separate explanation of how OAS increases with inflation covers the CPI adjustment in more depth. For a general OAS estimate, use the payment rate for the quarter that actually applies rather than treating one 2026 figure as the rate for the entire year.

When Can You Start OAS?

The earliest OAS can normally start is age 65. Unlike CPP, there is no option to begin OAS at 60. However, you can choose to delay the pension after 65.

For every month you delay OAS after age 65, the pension increases by 0.6% in 2026. That equals 7.2% for a full year of delay. The increase stops at age 70, so delaying for the full five years can increase the pension by 36%. There is no additional deferral increase after 70.

A larger monthly pension does not automatically mean delaying is the better choice. Someone who could qualify for GIS needs to be particularly careful because GIS requires the person to receive OAS, and there is no deferral increase for GIS. The rules for delaying OAS specifically flag this issue.

We would treat the start-date decision separately from the eligibility question. First establish what pension you qualify for. Then compare starting at 65 with deferring OAS based on your income and retirement circumstances.

Do You Have to Apply for OAS?

Many people do not need to submit an OAS application. When enough eligibility information is available, you can be automatically enrolled and receive a letter around your 64th birthday.

Do not assume silence means automatic enrolment, though. If a month has passed since your 64th birthday and you have not received an OAS enrolment letter, the current OAS application process directs you to contact Service Canada to determine whether you need to apply.

You also need to take action when the information in your enrolment letter is incorrect, you are specifically asked to apply, or you want to delay or change your OAS start date. Our guide to whether OAS starts automatically at 65 explains the enrolment process, while how to apply for OAS covers the application route when automatic enrolment does not apply.

OAS Is Taxable and Higher Income Can Reduce It

The regular OAS pension is taxable income. Recipients receive a T4A(OAS) slip showing pension amounts and any applicable tax withheld. OAS pension income is reported on the Canadian income tax return, with the taxable pension amount reported on line 11300 under the current OAS tax-reporting rules.

Higher-income recipients can also face the OAS recovery tax, often called the OAS clawback. For the July 2026 to June 2027 recovery period, the calculation is based on 2025 net world income, with recovery beginning above $93,454 of 2025 income. The repayment is generally 15% of income above the applicable threshold until the pension is fully recovered.

Because the income year and recovery period are different, the clawback can be confusing. A high-income year can affect OAS payments later rather than necessarily reducing the payment in the same month that income is earned. The current OAS recovery-tax thresholds show which income year controls each recovery period.

Our detailed guide to the OAS clawback covers that calculation separately. For the tax treatment of the pension itself, see whether OAS is taxable.

How OAS Fits With CPP and GIS

OAS, CPP and GIS can all provide retirement income, but they should not be treated as three versions of the same pension.

CPP is contributory. Your employment or self-employment earnings and CPP contributions help determine whether you qualify and how much you receive. OAS is primarily residence-based and funded through general tax revenues. That is why someone can receive OAS despite never having contributed to CPP.

You can also receive CPP and OAS at the same time when you qualify for both. Their start ages do not have to match because CPP can start as early as 60, while OAS cannot normally begin before 65. Our CPP vs. OAS comparison looks at the differences directly, while receiving CPP and OAS together focuses on how the payments can overlap.

GIS works differently again. It is a tax-free, income-tested benefit for qualifying low-income OAS pensioners who live in Canada. In 2026, receiving OAS is one of the requirements for GIS. Therefore, a person considering an OAS deferral should not look only at the higher future OAS payment if delaying could also postpone access to GIS.

The practical way to approach retirement benefits is to check each program separately. Confirm your OAS residence history, review your CPP contribution record, and determine whether your income may make GIS relevant. Combining those results gives a far more useful retirement-income picture than looking at the maximum OAS payment alone.

Other Questions About How Old Age Security Works

Can you receive OAS if you never worked in Canada?

Yes. Canadian employment is not required for OAS. Eligibility is based primarily on age, legal status and residence history rather than CPP-style payroll contributions.

Do you have to be retired to collect OAS?

No. You can continue working while receiving OAS. However, employment income contributes to your net income, so sufficiently high total income can result in some or all of your OAS being recovered through the recovery tax.

Is OAS the same everywhere in Canada?

The federal OAS rules apply across Canada, including Quebec. However, provincial and territorial senior benefits are separate programs and can have their own income, age and residence requirements.

Can you receive OAS if you leave Canada after retirement?

Yes, in qualifying circumstances. Generally, someone who has accumulated at least 20 years of Canadian residence after age 18 can continue receiving OAS while living outside Canada. International social security agreements can also affect eligibility in some cases.

Does everyone receive the same OAS amount?

No. Your payment can depend on your years of Canadian residence after age 18, the age when you start OAS, whether you are 75 or older, and your income. The published maximum is therefore a ceiling for an eligible full pension, not a standard payment automatically sent to everyone.

Before estimating OAS as part of your retirement income, start with your Canadian residence history after age 18. That tells you whether you are looking at a full pension, a partial pension or an eligibility question that needs closer review. From there, check the current quarterly rate and consider your start age and income. Those four pieces give you a much more realistic picture of how OAS will work for you.