This FAQ shows how to enter RRSP contributions in TurboTax Online: https://turbotax.community.intuit.ca/community/pension-etirement/help/how-do-i-enter-rrsp-contributions-in-turbotax/00/873649
1. On the left side of your return, click Income
2. Select T-Slips
3. Click on T4RSP Income from RRSP
4. Fill in the details
Thank you for choosing TurboTax.