Key Takeaways
- Waiting past 65 raises your OAS pension by 0.6% per month, to a maximum of 36% more at 70 — $762.50 a month at 65 versus $1,037.00 at 70, at current maximum rates.
- You cannot collect the Guaranteed Income Supplement while you delay, and the bigger pension can mean a bigger OAS clawback if your income is high.
- Past 70 there is no further increase, so waiting longer gains nothing.
The Pension That Pays You to Wait
Old Age Security is the one Canadian pension that rewards patience in plain sight. For every month you delay starting it after 65, the payment grows by 0.6% — 7.2% a year — up to a maximum 36% more at age 70.
Service Canada's own figures for the current quarter (October to December 2026) show what that means in dollars, for someone entitled to the maximum pension:
- Start at 65: $762.50 a month
- Start at 67: $872.30 a month
- Start at 70: $1,037.00 a month
That $274.50 monthly difference is permanent, and OAS amounts are indexed to inflation every quarter.
Like its cousin the Canada Pension Plan — where the same wait-until-70 decision is worth 42% — delaying OAS is a bet on your own longevity. You give up five years of payments in exchange for a larger cheque for the rest of your life.
And the clock has a hard stop. There is no benefit to delaying past 70 — the maximum is reached on that birthday, and every month later is money left on the table.
The Trap: Ottawa May Start It for You
For many Canadians, the delay plan quietly fails at the starting line. If Service Canada already has your information, you may be automatically enrolled for OAS. A letter arrives around your 64th birthday and, if you do nothing, payments simply begin at 65. There is no later box to tick.
If you want to delay, you must actively act: you can set the delay online through My Service Canada Account, using the "Delay Receiving OAS/GIS Pension" option, or by paper form. Note the retroactivity limit — if you apply after 65, you can be paid for up to 11 months back, but not for any period you chose to defer. The delay has to be declared, not improvised afterwards.
Who Delaying Hurts: The GIS Problem
For lower-income seniors, delaying OAS is usually the wrong move — for a simple reason Service Canada states outright: you cannot receive the Guaranteed Income Supplement unless you are receiving OAS. The GIS is often worth more than the pension itself to the people who qualify for it, and GIS amounts do not grow when you delay. Five years without the supplement in exchange for a 36% boost to the smaller benefit is a bad trade.
Couples face a second version of the same trap: while you are not receiving OAS, your spouse cannot apply for the Allowance, the benefit for partners aged 60 to 64. Delaying is a strategy for people with other income to live on — by design, it is not for everyone.
The Clawback: Where the Boost Can Bite Back
A bigger pension also means more income to be clawed back. If your net income, on line 23400 of your return, passes the recovery threshold — $93,454 on 2025 income, the test in force for payments running to June 2027, rising to $95,323 on 2026 income — you repay 15% of the excess, up to the full pension. For someone aged 65 to 74, the 2025 income recovery range reaches approximately $152,000, above which the full pension is recovered.
This creates a genuine planning knot: delaying increases your lifetime pension, but if your income in your 70s will sit deep in clawback territory — a large RRIF with forced minimum withdrawals is the classic cause — part of the extra amount is repaid every year. Couples have one legal release valve: pension splitting cannot move OAS itself, but shifting other pension income to a lower-income spouse can pull the higher earner back under the threshold.
The Break-Even, Honestly
There is no official break-even age — Ottawa publishes none, so treat any exact number as arithmetic, not gospel. On the maximum figures above, giving up five years of $762.50 (roughly $45,750 before indexation) to gain $274.50 a month requires about 14 years of receiving the higher pension to recoup — a break-even around age 84. Live well past it, in good health, with income low enough to dodge the clawback, and delaying is one of the best deals in Canadian retirement. Need the money now, qualify for the GIS, or expect a high income in your 70s, and the same deal turns poor.
The Twikup Take
Delaying OAS to 70 is a clean 36% raise — for Canadians who can afford to wait, will live long enough to collect it, and stay clear of the clawback. Ottawa will happily pay you more for waiting until 70. Just remember: the decision starts at 64, and if you don't tell Ottawa to wait, your pension won't.
Image: Illustrative image.