Schedule 8, Canada Pension Plan Contributions, calculates CPP contributions on employment and self-employment income, the deduction for enhanced contributions, the credit for base contributions, and any overpayment.
Self-employed individuals, who must calculate and pay both halves of CPP.
Employees whose employers deducted too much or too little.
Individuals who turned 18 or 70, started a CPP pension, or died during the year (prorated contributions).
Those aged 65 to 70 who want to elect to stop contributing on self-employment income, or to revoke an earlier election.
People who want to make optional additional contributions on employment income that had no CPP deducted.
Pensionable earnings and contributions through employment (from T4 boxes 26, 16 and 16A).
Self-employment earnings and the required contributions (CPP1 at 11.9 percent and CPP2 at 8 percent for 2026).
Split of each contribution into base and enhanced portions.
Results transferred to lines 22200, 22215, 30800, 31000, 42100 and 44800.