I had forgot to include my RRSP contributions made in the first 60 days of 2017 on my 2016 return. What can I do as a part of my 2017 return?

[TurboTaxMary-Ann1 · Accepted solution]

If you didn't report the RRSP contributions on your 2016 tax return, you will need to first file an adjustment request for your 2016 income tax return.

https://turbotax.community.intuit.ca/replies/2647992

Once your 2016 tax return is adjusted, you can then claim the amount on your 2017 tax return.