According to the Canada Revenue Agency (CRA), you must include all RPP contributions from the following slips: box 20 of your T4 slips, box 032 of your T4A slips, or on your union or RPP receipts. So yes you must include your RPP contributions from your T4. For more information: Line 20700 – Registered pension plan (RPP) deduction

Thank you for choosing TurboTax.