CPP and OAS: the income your plan already includes

Most retirement planning makes the same first mistake: it projects the savings and stops there, as if CPP and OAS don't exist. In a typical Canadian retirement budget, the public pension is a substantial share of the income — sometimes the largest single source. Any plan that ignores it is planning a bigger savings target than the family actually needs.

The two pieces, briefly

• CPP (Canada Pension Plan): earned through your working years. Your benefit is based on your contributions — generally, the more you contributed, the more you receive. You can start as early as 60 (at a reduced rate) or defer up to 70 (at an increased rate).
• OAS (Old Age Security): a monthly payment for seniors, not based on contributions but on years of residence in Canada. The standard start is 65, deferrable up to 70 for a higher amount — and at higher incomes, part of it is recovered through the OAS clawback (recovery tax).

The important thing for planning: both are income you can count on with reasonable confidence, and both have timing levers that change the monthly amount. That makes them part of the retirement plan, not a footnote to it.

Why timing is a planning decision, not an accident

Starting CPP at 60 and waiting until 70 changes the monthly benefit by a wide margin — the deferral credits are substantial, and so is the early-reduction penalty. The same structure exists for OAS, with its own deferral increase. These aren't small trims; over a twenty-year retirement, the difference between the earliest and latest start can run into the tens of thousands of dollars per year of benefit.

The "right" timing depends on your full picture: how much the savings must fill if CPP and OAS are on the low side, your health outlook, whether a spouse's timing interacts with yours, and what the clawback does at your expected income level. It's one of those decisions where the answer changes with every other number in the plan — which is exactly why it belongs in the plan rather than in a guess.

How to fold them into your numbers

1. Get the estimate. Service Canada's My Statement gives you a CPP estimate based on your actual contribution history. It's the single most useful document for a retirement projection.
2. Price the retirement year. What will the household spend per year in retirement? Subtract the expected CPP and OAS at your assumed start ages. The remainder is the gap savings must fill.
3. Test the timing. Run the projection at the standard ages, then at earlier and later starts. Watch what the savings target does in each case — the interaction is usually more dramatic than expected.
4. Revisit at milestones. Income, marriage, and health all move the timing question. It's a decision that gets re-checked, not decided once.

The retirement calculator projects the savings side; the retirement planning guide covers how the public pension gets folded into the whole. And when you're ready for the numbers with your actual figures behind them, that's what the conversation is for.

This article is educational and general in nature. Benefit amounts, rules, and clawback thresholds change; verify current figures with Service Canada before making decisions. This is not individualized advice.