Hi, you may need to manually adjust your tax return for any year that you have been issued CPPD and already reported taxes.
You should get a tax slip for the full amount actually paid to you by CanadaLife (net of any deductions for other income like CPPD), if your LTD is taxable.
A slip for the CPPD you received including the amount that you have to pay in taxes for the CPPD.
You may also get a tax slip for any taxable benefits that you received, which will be received by you as non-cash but taxable like other income.