How the CPP General Drop-Out Provision Works

The CPP general drop-out provision automatically removes up to eight years of your lowest-earning months from the calculation of your base Canada Pension Plan retirement pension, which raises the average earnings figure used to set your monthly cheque. It applies to the base CPP component only, and you don’t need to apply for it. For 2026, the maximum CPP retirement pension is $1,507.65 per month, and the drop-out is one of the main tools that moves contributors closer to that ceiling.¹

How the Calculation Works

Your CPP retirement pension is based on your average monthly pensionable earnings across your entire contributory period. That period generally runs from the month you turn 18 (or January 1966, whichever came later) until you start receiving your pension, turn 70, or die, whichever happens first.²

Without any adjustment, the divisor in that average would include every month from age 18 onward, including years when you earned nothing. The general drop-out fixes this by discarding the lowest 17% of months in your contributory period. For someone who contributes from age 18 to 65, the span covers 564 months. Seventeen percent of 564 is roughly 96 months, or eight years. The government describes this as “excluding up to 8 years of your lowest earnings” from the base CPP calculation.³

The math is straightforward. The system identifies the months where your earnings were lowest, pulls them out, and divides your remaining total earnings by the smaller number of months left. Removing those zeros and low-dollar months raises your average, which directly raises your monthly pension. Even people with steady careers benefit, because their weakest months still get trimmed.

What It’s Worth in Dollar Terms

Your CPP pension is capped by the Year’s Maximum Pensionable Earnings, which for 2026 is $74,600.⁴ If you earned at or above that ceiling every year throughout your career, your average is already near the maximum and the drop-out doesn’t change much.

Where the provision makes a real difference is for contributors who had stretches of part-time work, went back to school, were between jobs, or started their careers with entry-level wages. Removing eight years of low-earning months can shift your average enough to add meaningfully to each monthly cheque for the rest of your life. The 2026 maximum of $1,507.65 assumes you earned at or above the YMPE for essentially your entire working life.¹ Most people receive considerably less, and the drop-out’s job is to close the gap between your raw earnings record and what it looks like after its weakest points are stripped away.

Base CPP and Enhanced CPP Use Different Rules

Since 2019, CPP contributions have included a base component and an enhanced component. The 17% general drop-out applies only to the base portion. For the enhanced portion, the system uses your best 40 years of earnings rather than a percentage-based exclusion.³ Both methods protect you from your worst years; they simply do it differently.

The enhanced CPP also introduced a second earnings ceiling. For 2026, the Year’s Additional Maximum Pensionable Earnings is $85,000, which is the threshold for second additional CPP contributions (CPP2).⁵ Earnings between $74,600 and $85,000 feed into the enhanced calculation, which uses the best-40-years method.

How Your Start Age Changes the Drop-Out

You can start your CPP retirement pension as early as age 60 or as late as age 70. Timing affects both the size of the drop-out and the pension amount itself.

Starting at 60 shortens your contributory period to roughly 504 months, so 17% of that shorter period means fewer months get dropped. Your pension is also reduced by 0.6% for each month before age 65, which works out to a 36% reduction if you start right at 60.⁶ The drop-out still helps, but it works with a smaller window and the early-start penalty applies on top.

Delaying past 65 does the opposite. Your pension increases by 0.7% for each month after 65, up to a 42% boost at age 70.⁶ Your contributory period also grows longer, giving the 17% drop-out more months to work with. If you keep working past 65 without starting your pension, those additional higher-earning years get added to your record, and the system can use them to replace low-earning periods from earlier in your career.³

How It Stacks With Disability and Child-Rearing Exclusions

The general drop-out is the broadest exclusion, but two other provisions target specific life circumstances, and when they overlap the system applies them in a specific order to maximize your benefit.

Disability Months Come Out First

Any months during which you received a CPP disability pension are carved out of your contributory period entirely. They are removed before any other drop-out applies, so they don’t count against the 17%. If you spent several years on disability benefits, those years disappear from the equation, and the 17% is then calculated against the remaining months.

Child-Rearing Months Come Out Next

If you had low or zero earnings while being the primary caregiver for a child under age seven, those months can also be excluded. After disability months are removed, the child-rearing provision applies. Only then does the system calculate the general 17% drop-out on whatever months remain.⁷

Someone who spent five years on disability and six years as a primary caregiver would have those eleven years removed before the general drop-out kicks in. The 17% then trims additional low-earning months from whatever career history is left, producing a narrower and stronger earnings average.

The Child-Rearing Provision Is Not Automatic

This is where people leave money on the table. The general drop-out is applied automatically when Service Canada processes your claim. You don’t need to ask for it or know it exists. The child-rearing provision is different: you have to request it.

When you apply for a CPP retirement pension using form ISP1000, sections 11A and 11B cover the child-rearing provision, and you’ll need each child’s name, date of birth, and Social Insurance Number. If you’re applying for a disability benefit, the request is built into form ISP1151.⁷ For any other CPP benefit, complete the separate child-rearing form ISP1640.

If you’re already receiving a CPP benefit and never requested the provision, you can still apply through your My Service Canada Account or by mailing in form ISP1640.⁷ If it applies to you, check whether it was included in your original pension calculation.

Check Your Record Before You Apply

You can view your complete earnings history through your My Service Canada Account by opening the Canada Pension Plan section and selecting “View my contributions.”⁸ The same portal shows benefit estimates. Reviewing your record before applying matters because errors in your reported earnings feed straight into the drop-out calculation and your final pension amount.

If your pension decision arrives and you believe the calculation is wrong, you have 90 days from the date of your decision letter to request a reconsideration from Service Canada.⁹ That 90-day window is the deadline most people need to watch.

If You Worked in Quebec

The CPP covers workers across Canada except in Quebec, which operates the Quebec Pension Plan as a parallel system.¹⁰ The QPP has its own drop-out provisions with similar goals but different mechanics. If your career spans both Quebec and other provinces, your records from both plans are coordinated when your benefit is calculated, and the specific drop-out rules that apply depend on which plan covers each period of your working life.

1
Employment and Social Development Canada. Canada Pension Plan (2026) Quarterly Statistical Bulletin
2
Canada.ca. Contributions to the Canada Pension Plan
3
Government of Canada. CPP Retirement Pension: How Much You Could Receive
4
Canada Revenue Agency. CPP Contribution Rates, Maximums and Exemptions
5
Canada Revenue Agency. Second Additional CPP Contribution (CPP2) Rates and Maximums
6
Canada.ca. CPP Retirement Pension: When to Start Your Pension
7
Canada.ca. Child-Rearing Provisions
8
Canada.ca. Statement of Contributions to the Canada Pension Plan
9
Government of Canada. CPP Benefits – Request a Reconsideration
10
Employment and Social Development Canada. Canada Pension Plan