Old Age Security (OAS): A Plain-Language Guide for Canadian Seniors

Old Age Security is one of the friendlier benefits to get your head around, which is a relief, because it tends to come up right when you are thinking about retirement and care. Unlike the Canada Pension Plan, you do not have to have paid into OAS during your working years. It is based mostly on your age and how long you have lived in Canada.

This guide walks through who qualifies, how much you can get, how to apply, and a couple of things to watch for, like the clawback, so you can feel clear about a benefit that forms the base layer of most seniors' income.

What Old Age Security is

Old Age Security is a monthly pension from the Government of Canada for people 65 and older. The thing that surprises most people is that it is residency-based, not contribution-based. You qualify through your age and the years you have lived in Canada, not through employment or payroll deductions.

That makes OAS different from the Canada Pension Plan, which is tied to what you paid in. Most seniors receive both, and together they form the foundation of retirement income, on top of any workplace pension and personal savings. You can read the official overview on the Government of Canada's OAS page.

OAS is a taxable monthly payment, and the full amount is the same for everyone who qualifies, rather than depending on past earnings.

Who qualifies for Old Age Security

The rules come down to age and residency. To receive OAS, you generally need to:

• Be 65 or older.
• Be a Canadian citizen or legal resident when your application is approved.
• Have lived in Canada for at least 10 years after age 18 to receive it while living in Canada.

To get the full pension you usually need 40 years of residency in Canada after age 18, with a partial pension available for fewer years. If you live outside Canada, you generally need 20 years of residency. The official eligibility page lays out the details, including international social security agreements that can help if you lived or worked abroad.

How much is Old Age Security?

The OAS amount is set by the government and adjusted four times a year to keep pace with the cost of living, so the 2026 amounts differ a little from last year's. There is a maximum monthly amount, and one helpful detail to know: payments increase by 10 percent once you turn 75.

Rather than rely on a figure that changes, check the current numbers on the official OAS payment amounts page, and sign in to your My Service Canada Account to see your own estimate. If OAS will go toward care, it helps to see it next to real costs in our complete care guides and listings across Canada.

How to apply for OAS

Here is some good news: many people are enrolled in OAS automatically. If you are, Service Canada sends you a letter the month after you turn 64 to let you know. If you do not receive that letter, you will need to apply, so it is worth checking rather than assuming.

The easiest way to apply is online through your My Service Canada Account. You can also complete a paper OAS application and mail it to Service Canada. Apply about six months before you want payments to start, and set up direct deposit so the money arrives automatically.

OAS payment dates

OAS is paid monthly, on the same schedule as the Canada Pension Plan, usually in the last few business days of the month. The government publishes the full list of benefit payment dates for the year, so you can plan around them.

As with CPP, direct deposit is the safest way to receive your money. You can set it up or update it in your My Service Canada Account or by phone. If you switch banks, update your details right away so a payment is never missed.

Should you defer OAS?

You do not have to start OAS at 65. You can delay it for up to five years, until age 70, and each month you wait adds 0.6 percent to your pension, up to 36 percent more at age 70. There is no advantage to waiting past 70.

Deferring can make sense if you are still working, have other income, or expect a long retirement and want a larger guaranteed amount later. It may not make sense if you need the income now or have health concerns. Note that, unlike CPP, you cannot start OAS before 65, so 65 to 70 is your window.

The OAS clawback (recovery tax)

This is the one piece worth understanding closely. If your annual income is above a set threshold, you repay part of your OAS through what is officially called the OAS recovery tax, and what everyone else calls the clawback. The further your income is above the threshold, the more is recovered, until at a higher level OAS is fully clawed back.

Most seniors are not affected, because the threshold is fairly high, but it matters if you have a strong pension or a large one-time withdrawal in a year. You can see the current threshold and how it works on the OAS recovery tax page. A financial advisor can help you plan withdrawals to reduce or avoid it.

GIS and the Allowance: extra help for lower incomes

If your income is modest, OAS comes with valuable add-ons. The Guaranteed Income Supplement, or GIS, is a monthly, non-taxable top-up for lower-income seniors who already receive OAS. It can make a real difference, and it is worth applying for if you might qualify, since it is not always automatic.

There is also the Allowance, for 60 to 64 year olds whose spouse or common-law partner receives the GIS, and the Allowance for the Survivor, for low-income people in that age range whose partner has died. The official GIS and Allowance page explains who qualifies.

OAS vs CPP: how they fit together

People often mix these two up, so here is the simple version. The Canada Pension Plan is based on what you contributed during your working years, so the amount varies from person to person. Old Age Security is based on your age and years in Canada, and the full amount is the same for everyone who qualifies.

You do not choose between them. Most seniors receive both, plus the GIS if their income is low. Together they are designed to be a foundation, which you build on with workplace pensions, savings, and home equity when planning for care.

Staying compliant: taxes and keeping your details current

OAS is taxable, so it appears on your annual tax return, and you will receive a T4A(OAS) tax slip each year in your My Service Canada Account. If you expect a recovery-tax bill, you can ask to have tax withheld from your payments to avoid a surprise.

Keeping your information current is the main way to stay onside. Tell Service Canada promptly if you move, switch banks, have a change in marital status, or spend an extended time outside Canada, since residency affects OAS. Watch out for scams too: Service Canada will never call or text to demand payment or ask for your banking details. If in doubt, hang up and call the official number below.

Putting OAS to work for care

For most families, OAS and CPP together form a dependable monthly base for a care budget. On their own they rarely cover the full cost of assisted living or a retirement home, but combined with the GIS, savings, and home equity, they go a long way.

A few ways to stretch them further:

• Pair OAS with the Canada Pension Plan and the GIS for lower-income seniors.
• Check provincial benefits and home accessibility grants that can offset costs.
• Compare real monthly fees in our guides on assisted living and retirement homes, and browse listings across Canada.

Seeing OAS next to the actual cost of care turns a worry into a plan you can act on.

Where to get help

You do not have to sort this out alone. For questions about your own situation, Service Canada is the place to go, and they handle these every day.

• By phone: call Service Canada at 1-800-277-9914 (TTY 1-800-255-4786) for Old Age Security and CPP.
• Online: your My Service Canada Account is the fastest way to apply, check your amount, and update your details.
• In person: you can also visit a Service Canada office for help with forms.

And when OAS is really about funding care for someone you love, that is where we come in. Browse care options across Canada, or reach out to our advisors for free, friendly help putting the pieces together.