Canada Pension Plan (CPP) and Old Age Security (OAS) often arrive in the same retirement-income conversation, which makes them easy to treat as two parts of one pension. They are actually separate programs. You qualify for them differently, can start them at different ages, and the amount you receive from one is not calculated using the same rules as the other.
- CPP and OAS Use Different Eligibility Rules
- You Can Receive CPP and OAS at the Same Time
- CPP and OAS Have Different Rules for Starting Early or Delaying
- Does CPP Reduce Your OAS?
- CPP Can Also Affect the Guaranteed Income Supplement
- Working Can Affect CPP and OAS Differently
- CPP and OAS Are Both Taxable
- Do You Have to Apply for Both CPP and OAS?
- How to Think About CPP and OAS as One Retirement Income Picture
- Other Questions About CPP and OAS
You can receive CPP and OAS at the same time. CPP is based mainly on your earnings, contributions and starting age, while OAS is based mainly on your age and years of residence in Canada after 18. CPP can start from age 60, while OAS starts no earlier than 65. Both are taxable retirement income.
CPP and OAS Use Different Eligibility Rules
CPP is a contributory pension. To qualify for a CPP retirement pension, you must be at least 60 and have made at least one valid CPP contribution, including qualifying credits received after a divorce or separation. Your eventual payment is then influenced by your pensionable earnings, contributions and the age at which you start receiving CPP.
OAS does not require CPP contributions or even a Canadian employment history. Someone living in Canada generally needs to be at least 65, have legal status that meets the program requirements and have lived in Canada for at least 10 years after age 18. Different residence requirements apply when receiving OAS while living outside Canada.
A full basic OAS pension generally requires 40 years of Canadian residence after age 18. Someone with fewer qualifying years may receive a partial pension. For example, 20 qualifying years of residence would generally produce 20/40ths, or half, of the full basic OAS amount. This residence-based calculation is one of the largest differences between OAS and how CPP is calculated.
As a result, someone can qualify for both programs, only one, or neither. A person who never worked in Canada could still qualify for OAS based on residence. Conversely, someone who contributed to CPP and later moved abroad could qualify for CPP without meeting the residence requirements for OAS.
You Can Receive CPP and OAS at the Same Time
Receiving CPP does not disqualify you from receiving OAS. Once you meet the separate requirements for each program, both pensions can form part of your retirement income.
They do not have to start together. CPP can begin anywhere from age 60 to 70, with age 65 treated as the standard starting age. OAS can begin from age 65 to 70. Someone might therefore start CPP at 60 and add OAS at 65, start both at 65, or delay one or both.
The two pensions also arrive as separate benefits even though both are administered federally. CPP is based on your contribution record, while OAS remains tied to its own residence, age and income rules. Starting OAS does not recalculate your CPP pension, and beginning CPP does not automatically mean OAS begins at the same time.
For July through September 2026, the maximum basic OAS payment is $751.97 per month for ages 65 to 74 and $827.17 per month for ages 75 and older. The higher amount reflects the automatic 10% OAS increase beginning the month after a recipient turns 75. Actual OAS can be lower because of residence history, income or other applicable rules.
CPP and OAS Have Different Rules for Starting Early or Delaying
CPP gives you more flexibility at the younger end. Starting CPP before age 65 reduces the pension by 0.6% for each month before 65, or 7.2% per year. Starting at 60 produces the maximum age-based reduction of 36%.
OAS has no equivalent early option. You cannot start it at 60, 62 or 64 simply because you retired early. The earliest OAS starting age is 65.
Both pensions can be delayed after 65, but the increases differ. Delaying CPP increases it by 0.7% for each month after 65, reaching a maximum 42% age-based increase at 70. Delaying OAS after 65 increases it by 0.6% per month, or 7.2% per year, reaching 36% at 70. Neither pension earns another age-based increase by waiting beyond 70.
That means choosing a CPP starting age and choosing an OAS starting age are two separate decisions. Starting CPP at 65 does not force you to start OAS at 65, and delaying CPP does not require you to delay OAS. We would treat the two decisions separately because their adjustment rates and effects on other income-tested benefits are different.
Does CPP Reduce Your OAS?
CPP does not directly reduce the basic OAS pension dollar for dollar. A larger CPP pension does not trigger a special CPP deduction from OAS.
CPP can still affect how much OAS you ultimately keep because CPP is taxable income. Higher-income OAS recipients can face the OAS recovery tax, commonly called the OAS clawback. CPP forms part of the income that can push a recipient above the applicable recovery threshold.
For the 2026 tax year, the OAS recovery threshold is $95,323 of net world income. The resulting recovery-tax period runs from July 2027 through June 2028. The 2026 upper threshold is estimated at $155,109 for people aged 65 to 74 and $161,088 for people aged 75 or older. These upper thresholds are estimates until the applicable OAS amounts are finalized.
The recovery itself is generally 15% of income above the applicable threshold, up to the amount of OAS subject to recovery. CPP is therefore relevant because it contributes to total income, not because CPP and OAS have a built-in rule that automatically offsets one pension against the other.
Someone receiving a relatively modest CPP pension and little other taxable income may be nowhere near the OAS recovery threshold. Someone with CPP plus a workplace pension, Registered Retirement Income Fund withdrawals, investment income and other taxable income could cross it. Looking only at CPP would miss the broader income calculation.
CPP Can Also Affect the Guaranteed Income Supplement
The Guaranteed Income Supplement (GIS) is different from the basic OAS pension. GIS is an income-tested benefit for eligible low-income OAS recipients, so CPP income can directly affect GIS eligibility and payment amounts.
When income is determined for these benefits, CPP and Quebec Pension Plan benefits are included as income, while OAS, GIS, the Allowance and Allowance for the Survivor are excluded from the income calculation. The current GIS rules then apply different income thresholds depending on marital status and whether a spouse or common-law partner receives OAS or the Allowance.
For July through September 2026, a single, divorced or widowed OAS recipient must have annual income below $22,800 to qualify for GIS. For a couple where both partners receive OAS, the 2026 combined annual income threshold is $30,096. Other thresholds apply when a spouse receives the Allowance or does not receive OAS.
This creates an important retirement-planning issue for lower-income Canadians. Starting CPP earlier produces a permanently smaller CPP pension, while delaying CPP can produce a larger one. CPP income can also change GIS after age 65. We would therefore avoid making a CPP timing decision based only on the CPP increase or reduction percentage when GIS eligibility is likely to matter.
Working Can Affect CPP and OAS Differently
You do not have to stop working to receive either pension. A CPP retirement pension is not reduced simply because you continue working, and employment itself does not make you ineligible for OAS.
Working while receiving CPP can even create additional CPP income. A recipient who is under 70, continues working and makes qualifying contributions can earn a CPP Post-Retirement Benefit. CPP contributions are generally mandatory for working recipients under 65. From 65 through 69, eligible workers can elect to stop contributing.
OAS does not require employment contributions, so there is no comparable OAS post-retirement benefit. Employment income can still matter indirectly because OAS is subject to the income-based recovery tax.
The practical question is therefore not simply how much you can earn while collecting CPP and OAS. There is no ordinary employment-earnings ceiling that automatically stops either retirement pension. Instead, income can affect OAS through the recovery tax and can affect GIS through its income test.
CPP and OAS Are Both Taxable
Both pensions form part of taxable income. CPP benefits are reported separately from OAS on your income tax return, but both can contribute to the tax you ultimately owe.
CPP or QPP benefits are reported on the T4A(P), while OAS appears on the T4A(OAS). The tax treatment of CPP is separate from the contribution deductions and credits that may have applied while you were working.
Income tax is not necessarily withheld automatically from CPP and OAS payments. You can request voluntary tax deductions from federal pension payments if you want tax withheld before the money reaches you. This can be useful when several retirement-income sources would otherwise leave you with tax owing at filing time.
GIS is handled differently. Although GIS is reported on the tax return, an offsetting deduction generally makes the benefit non-taxable. That difference is another reason not to treat CPP, OAS and GIS as three versions of the same pension.
Do You Have to Apply for Both CPP and OAS?
CPP and OAS also differ in how payments begin. You need to apply for your CPP retirement pension. It does not simply begin because you reach 60 or 65.
OAS can be different. Many people are automatically enrolled when sufficient information is available. You are normally notified after turning 64 if automatic enrolment applies. If you do not receive an enrolment letter, you may need to apply.
Automatic OAS enrolment should not be confused with automatic CPP. Someone planning retirement should check both benefits separately rather than assume that receiving one means the other has been arranged. My Service Canada Account can help you review your CPP information and manage available OAS services.
How to Think About CPP and OAS as One Retirement Income Picture
CPP and OAS eventually land in the same household budget, but their separate rules give you different planning choices. CPP reflects your contribution history. OAS adds a residence-based pension from age 65. GIS may provide another layer for lower-income OAS recipients.
For someone approaching retirement, we would first check the estimated CPP amount and contribution record, then confirm OAS residence history and likely eligibility. After that, compare possible starting dates while accounting for taxes, the OAS recovery tax and any potential GIS entitlement. That produces a much more useful picture than simply adding the published maximum CPP and OAS payments together.
Other Questions About CPP and OAS
Can you get OAS if you never paid into CPP?
Yes. OAS does not require CPP contributions or a Canadian employment history. Eligibility is primarily based on age, legal status and Canadian residence requirements, so someone who never worked can still qualify.
Can you collect CPP at 60 and OAS at 65?
Yes. The pensions can begin at different times. CPP can start at 60, while OAS cannot start before 65.
Does a CPP survivor’s pension count as income for OAS purposes?
CPP benefits form part of taxable income and can therefore contribute to the income used for the OAS recovery tax. A survivor receiving CPP should consider the survivor pension alongside other taxable income rather than looking only at a CPP retirement pension.
Does turning 75 increase CPP as well as OAS?
No. The automatic 10% increase after age 75 applies to OAS. CPP does not receive a separate age-75 increase. CPP benefits already in payment instead receive their normal annual inflation adjustment.
Can spouses receive different CPP and OAS amounts?
Yes. CPP is calculated separately from each person’s contribution and earnings history, while OAS can differ because of residence history, age, deferral and income. Being married does not automatically give both spouses identical CPP or OAS payments.
