The last day where contributions to an RRSP may be included in the 2020 tax year is March 2nd, 2021 (you will receive a separate contribution receipt for contributions made between January 1st and March 2nd). 

Wealthsimple will honour deposits as being eligible to be allocated towards the 2020 tax year as long as the deposit is initiated by March 2nd, 7:00 pm (EST). We recommend trying to beat the rush though!