[zeroer]

Yea, tax gain harvesting is definitely something you can do. Though it's harder than tax loss harvesting. You have to take into account the entirety of a person's tax situation to do it, as opposed to tax loss harvesting, which only require knowledge of the account transaction history, which Betterment and Wealthfront of course have. To do tax gain harvesting you have to wait until late December when you have most of the information, and you essentially have to complete an entire tax return.