This page covers applying for the CPP retirement pension: how long a decision takes, when to apply, back payments, and what you need. It is part of the Canada Pension Plan hub.
How Long CPP Takes to Process
Service Canada states it will make a decision within 28 days for an online application and within 120 days for a paper application, both measured from when your complete application is received. Online applications submitted through My Service Canada Account are processed far faster than paper applications sent by mail.
| Application Method | Service Canada’s Stated Decision Time |
|---|---|
| Online (My Service Canada Account) | Within 28 days |
| Paper application | Within 120 days |
| Incomplete application (missing documents) | Can take longer than the stated window above |
Once approved, payments arrive on the CPP payment dates, near the end of each month.
When to Apply for CPP
You can apply up to 12 months before the start date you choose. The pension starts on the date you request, not the date you apply, and the first payment comes the following month. A paper application can take up to 120 days for a decision, so if you apply in July on paper requesting an August start date, you’ll likely miss it; even the faster 28-day online decision window leaves little room for error close to your target date.
The start date itself changes the amount: You can start the CPP retirement pension any time from 60 to 70 (65 is the standard age): it is 0.6% lower for each month before 65 (up to 36% less at 60) and 0.7% higher for each month after (up to 42% more at 70), with no gain from waiting past 70; applying after 65, you can backdate the start up to 11 months, but not before the month after your 65th birthday. CPP at 60 vs 65 vs 70 compares the options.
Retroactive CPP Payments
Retroactive CPP only applies if you apply after turning 65. If your requested start date is before 65, there is no retroactive payment at all – your pension simply starts, at the reduced early rate, from the date you request. If you apply after 65, Service Canada can pay up to 12 months of retroactive payments (11 months plus the month you apply), but never earlier than the month after your 65th birthday.
Important catch: Choosing an earlier retroactive start date means your CPP is calculated as if you had started at that earlier date (a lower monthly amount than if you had simply used your actual application date).
Retroactive Payment Example
Suppose your CPP at 65 would be $900 a month, and you apply at 65 and 8 months and ask for the start to be backdated 8 months:
- You receive a retroactive lump sum (approximately 8 × reduced amount)
- But your ongoing monthly CPP is lower than it would have been with a start at 65 and 8 months, because it has 8 fewer months of the 0.7% monthly increase
Your estimate in My Service Canada Account shows the amounts, which helps when choosing a start date (Service Canada, how much you could receive).
What You Need to Apply for CPP
When applying online or on paper, have ready:
- Your Social Insurance Number (SIN)
- Your banking information for direct deposit (account number, institution number, transit number)
- If you lived or worked in another country: the country, your insurance number there and your dates there
- The date you want your pension to start
How to Apply for CPP
Online (fastest): Log in to My Service Canada Account → “Apply for CPP retirement pension.”
Paper: Download the application form (ISP-1000) from Service Canada’s apply page and mail it to the Service Canada office for the province or territory where you last lived.
How to Track Your CPP Application
You can check your application status in My Service Canada Account, or contact Service Canada at 1-800-277-9914 if you can’t use it.
After Your CPP Is Approved
Once approved:
- You receive a letter confirming your monthly amount and start date
- Payments are issued automatically each month — no further action required
- CPP is taxable income: you can ask for tax to be withheld from your payments (is CPP taxable?)
Related Reading
- Maximum CPP Payment Amount — How the maximum is calculated and what most people actually receive
- CPP at 60 vs 65 vs 70 — When to start CPP for maximum lifetime income
- OAS at 65 vs 70 — Should you defer OAS for a bigger payment?
- CPP payment dates: Exact payment schedule
Sources
The figures and rules on this page come from these sources, last checked against them between September 22, 2026 and September 30, 2026. How we check facts.
- Employment and Social Development Canada: Contact Old Age Security
- Government of Canada: CPP retirement pension - After you apply
- Government of Canada: Canada Pension Plan retirement pension - Apply
- Government of Canada: CPP: When to start your retirement pension
- Government of Canada: Canada Pension Plan – Monthly payment amounts