临时给诗人查的，几个要点。如果有错，莫怪。 1. 如果开始领取CPP, 在你余下的一生都会领取CPP. CPP金额会根据物价指数调整（调高不调低）。
Once you start your CPP retirement pension, you’ll receive payments for the rest of your life.
Your monthly payment will increase in January of each year if there’s an increase in the cost of living, as measured by the Consumer Price Index.
From: Financial Consumer Agency of Canada
If you continue to work while receiving your Canadian Pension Plan (CPP) retirement pension and are between the ages of 60 and 65 years old, you must still contribute to the CPP. Your CPP contributions will go toward post-retirement benefits. These benefits will increase your retirement income when you stop working.
If you continue to work while getting CPP retirement pension and are between the ages of 65 and 70 years old, you can choose not to make any more CPP contributions. If you decide to keep paying into the CPP, your employer will also have to contribute. If you're self-employed, you'll have to pay both the employee and employer portions. Learn how to contribute to the Canada Pension Plan post-retirement benefit.
4. 领取CPP期间旅居国外。 你领取的CPP, QAS和QPP的金额按25%的税率纳税。你说的25%可能是这个税吧？不论你何时开始领取CPP, 只要你旅居国外，这个税是免不了的。
Lived or living outside Canada- Pensions and benefits – What you need before you start