People can already voluntarily decide to delay CPP until age 70 for increased benefits, and it can be quite beneficial. They can also take it early at 60 for a penalty.
I don't really get the reason for what you're proposing and why CPP needs to be fiddled with when the plan is sound.
Regardless there is already something similar to what you're thinking of. Every 9 years, the actuaries review the pension adjustment factors (early penalty, deferral benefit). It's possible in the future for the actuaries to suggest a bigger penalty for taking it early and/or a bigger benefit for deferring.
CPP is sound, yes.
But OAS/GIS are not, they are funded from annual appropriations (general tax revenue and borrowing), but are tied to the retirement age.
It would make no sense to move the age for only one set of these, they should be moved in lock step.
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One of the reasons OAS/GIS are such a drain is that CPP provides such a paltry payout. The last approved increase is still being phased-in, but takes CPP to a whopping 33% income replacement rate.
That's among the lowest in the OECD and puts extreme pressure on the government to direct other money to the elderly (OAS/GIS/Age-amount tax credit/GAINS credit etc.)
The fact OAS all pays out, in part, to households with income exceeding $140,000 per year, and the age amount goes to households with up to $103,000.........doesn't help matters.
Meanwhile, many low and lower-middle income earners simply can't afford to retire at the designated age.
Pushing the age up, allows the benefits I described above, it also means fewer people qualify for GIS as their income rises, and indeed more see their OAS phased out sooner for the same reason.
Now, while we're at it raising the age, we should also be lowering the phase-out on the OAS and the Age Amount to align with the new dentalcare scheme........... your cut-off at $90,000 per year.
This would likewise produce a dividend to the government which could be used to augment benefits for low and lower-middle income earners (or everyone with an income under 90k) and/or be used to reduce the deficit.
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While I'm at it, we really do need to reset the workforce age brackets used by Stats. Can which have become laughably misleading.
The general definition counts everyone from age 15 up; and for most purposes has a cut-off of age 64.
Where as the majority of Canadians don't enter the labour force until age 18 or later; and whereas an increasingly large number of Canadians don't retire at 65 we have a misleading statistic.
We can, in a digital age, track any/all age ranges; but for the purposes of meaningful monthly statistic I would like to see 2 lower ranges, 18 and 22 which reflect typical post-high school and typical post-secondary graduation ages; while the upper age should be aligned with a higher retirement age noted above.