When to take CPP and OAS together

Yes — and most retirees do. The Canada Pension Plan and Old Age Security are two separate programs run by the federal government, and receiving one has no effect on your eligibility for the other. They are even paid together, usually on the same day near the end of each month. Because they are independent, you apply for each one separately and you can choose a different start age for each. CPP can begin any month from 60 to 70; OAS can begin from 65 to 70. So deciding when to take CPP and OAS is really two decisions that you coordinate, not one.

The big structural difference: CPP is based on what you contributed from working income over your career, while OAS is based on how many years you lived in Canada after age 18 (40 years gets you the full pension). That is why you can collect OAS without ever having worked, and why a high earner and a low earner who both lived here their whole lives can get very different CPP but the same OAS.

There is no universal best age — the right answer depends on your situation. But a useful framework is to weigh the same handful of factors for both benefits, then decide whether to start each early, at 65, or deferred to 70:

1. Health and family longevity. Both CPP and OAS reward waiting only if you live long enough to collect the bigger cheques. Good health and long-lived parents tilt you toward delaying; serious health concerns tilt you toward starting earlier.
2. Cash-flow need and other income. If you need the money to cover living costs the day you retire, that need usually outweighs the long-run math. If you have RRSP, TFSA, or a workplace pension to live on, you have the freedom to defer one or both benefits for a larger guaranteed income.
3. Whether you are still working. Stacking CPP and OAS on top of a salary in your early-to-mid 60s just adds highly taxed income — and can trigger the OAS clawback. Many people who keep working defer both until they actually stop.
4. The OAS clawback bracket. This is the factor unique to taking them together: the size and timing of your CPP changes your total income, which changes how much OAS you keep. More on this next.

Run your own figures through the estimator above to see how each combination changes your net income — it does the CPP and OAS adjustments and the clawback math for you.

This is the heart of coordinating the two. Your CPP retirement pension is fully taxable income. OAS, meanwhile, is subject to the OAS recovery tax — the "clawback" — which takes back 15 cents of OAS for every dollar your net income rises above $95,323 in 2026. Put those two facts together and you get the key interaction: a larger or deferred CPP raises your taxable income, which can push you into the OAS clawback and shrink your net OAS.

That is why delaying CPP to 70 for a 42% bigger cheque is not a free lunch if you are near the threshold — some of that extra CPP can be offset by OAS you lose to the recovery tax. It also cuts the other way: deferring OAS itself to 70 gives you a larger OAS but over fewer high-income years, which some retirees use deliberately. The OAS clawback calculator shows exactly where the recovery tax starts and where your OAS disappears entirely (about $154,708 at 65–74).

Delaying both gives you the largest possible guaranteed, inflation-protected income. Versus starting at 65, waiting to 70 raises CPP by about 42% and OAS by about 36% — a combined raise no investment can promise risk-free. Deferring both toward 70 makes sense if:

• You are in good health and expect to live well into your 80s or beyond.
• You are still working in your 60s and don't need the income yet.
• You have RRSP or TFSA savings to bridge the years from retirement to 70 — which also lets you draw down (and "melt down") registered accounts before CPP and OAS stack on top.
• You want maximum protection against outliving your money, since both benefits are indexed to inflation for life.

The case against delaying both is just as real: poor health, no savings to bridge the gap, or a strong preference for money in hand during your active early-retirement years. Many Canadians take one or both early for exactly these reasons, and that is a legitimate choice. Ultimately, when to take CPP and OAS comes down to fitting the timing to your own health, savings, and tax picture rather than chasing a single "optimal" age.

Neither benefit should be left to chance. CPP never starts automatically — you must apply, and Service Canada recommends doing so about six months before you want payments to begin. You apply online through your My Service Canada Account, where you can also see your personal CPP estimate at different start ages.

OAS is sometimes automatic. Service Canada auto-enrolls many people and sends a letter the year before you turn 65; if you get that letter, you don't need to apply. But not everyone is auto-enrolled, so if you haven't received confirmation, apply yourself — again, about six months ahead. Because the two benefits have separate start ages, you can submit the applications at different times to match the strategy you chose above.

Timing CPP and OAS is a household decision when you have a spouse. Two couples-specific points the single-person math misses:

• The clawback is per person. OAS recovery is based on each individual's own net income, not household income. Couples often split eligible pension income to shift income from the higher earner to the lower one, keeping both below the $95,323 threshold and protecting more OAS for the household.
• Survivor benefits. When one spouse dies, the survivor may receive part of the deceased's CPP, but the survivor's own pension plus the survivor benefit is capped at the maximum single CPP. OAS has no survivor pension for those 65+. These rules can change who should delay and who should take their benefits early.

Educational reference, not financial advice. Figures reflect 2026 rules (CPP 60–70 at −0.6%/+0.7% per month; OAS 65–70 at +0.6% per month to defer; OAS clawback threshold $95,323, 15% recovery rate). The estimator models a steady state where both benefits are flowing and does not include income tax, GIS, or the July–June clawback timing. Check your own estimates in My Service Canada Account, and model your full picture in the retirement planner.