CPP & OAS: Maximize Your Government Benefits
When to start CPP and OAS can mean tens of thousands of dollars difference. Learn the break-even math, deferral strategies, pension sharing, and OAS clawback avoidance.
Canada Pension Plan (CPP) payments can start as early as age 60 or as late as age 70. Each month you delay past 65, your payment increases by 0.7% (8.4% per year). Starting at 60 reduces your payment by 0.6% per month (7.2% per year). This means the age-70 payment is 42% higher than the age-65 payment, and the age-65 payment is 36% higher than the age-60 payment.
The break-even age for CPP is approximately 74 if comparing age 60 versus 65, and around 82 if comparing age 65 versus 70. If you expect to live past these ages — and the average Canadian life expectancy is about 82 — deferral often makes mathematical sense. However, if you need the income to avoid drawing down investments, or if you have health concerns, starting earlier can be the right choice. CPP pension sharing with a spouse can also reduce the household's overall tax bill.
Old Age Security (OAS) can start at age 65 or be deferred to age 70, with a 0.6% increase per month of deferral (36% higher at 70). OAS is subject to a clawback (recovery tax) once your net income exceeds approximately $95,323 (2026). The clawback rate is 15% of income above the threshold, and OAS is fully clawed back at approximately $148,451. If your retirement income will exceed the threshold, consider strategies to reduce taxable income: maximize TFSA (withdrawals are not counted), defer OAS to increase the payment, or manage RRIF withdrawals carefully.
The Guaranteed Income Supplement (GIS) is an additional monthly benefit for low-income OAS recipients. To qualify, your annual income (excluding OAS) must generally be below approximately $21,624 for single seniors or $28,560 for couples (2026 thresholds). GIS is entirely non-taxable and is recalculated annually based on your previous year's income. Because GIS eligibility is income-tested, every dollar of RRIF withdrawal or other taxable income can reduce your GIS — making TFSA withdrawals (which are not counted as income) extremely valuable for lower-income retirees.
Pension income splitting allows you to allocate up to 50% of eligible pension income to your spouse on your tax returns, which can significantly reduce your household's overall tax burden and help avoid OAS clawback. Eligible income includes RRIF payments and life annuity payments from a pension plan (after age 65 for RRIF; any age for defined benefit pensions). CPP sharing is a separate mechanism where couples who are both at least 60 can share their CPP retirement pensions based on their years of cohabitation. A break-even analysis — comparing total lifetime benefits at different starting ages — is essential for making the right CPP and OAS deferral decision for your personal situation.