When will my cash back rewards post to my Aspiration Spend account? Natalie D. October 07, 2020 01:13 Follow Cash back rewards for the Aspiration Spend account post on the 1st business day of each month. Comments Related articles What types of transactions earn cash back for Aspiration Spend? How do I earn cash back rewards on purchases? Can I deposit a check directly into Aspiration Save? How can I deposit cash? What interest rates are offered for Aspiration Save?