You are able send your earnings to a friend or family member's payment account. However, earnings cannot be transferred between two Ibotta accounts.
We don't want someone else to accidentally receive your funds so it is best if you reach the withdrawal threshold, and send your earnings to the payment account of your choosing.
However, if you withdraw in the form of a gift card, you are free to send the gift card link that you receive to your friend or family member as a gift.