T4 slip - Box 56 /RL-1 PPIP insurable earnings (Quebec)The amount shown in Box 56 of your T4/RL-1 in Box I represents the amount of PPIP insurable earnings.
If Box 56 is empty, please enter the amount from Box I of the RL-1.
Note that if you enter $0.00, this will indicate that you did not have to pay PPIP contributions, and your tax return will be inaccurate.
For more information about this subject, please consult the following links :
For the CRA :
https://www.canada.ca/en/revenue-agency/services/tax/individuals/topics/about-your-tax-return/tax-return/completing-a-tax-return/deductions-credits-expenses/line-375-provincial-parental-insurance-plan-ppip-premiums-paid.html
For Revenu Quebec :ID: 20210923170251CA.xml
Webpage: KPA365-20210923170251CA.htm