Where does dividends from Robo Advisors go to? Will the dividends be invested back into the portfolio?

To answer your first question, yes your dividends are re-invested back into the portfolio.

It will go back into your account and it will be whon in the transaction statement monthly.

In fact, I think most robo advisors witholding tax will all apply.

If you transfer that amount into your Robo-advisor account (it is basically their bank account) the total amount will be managed by them (usually they will keep a small % as cash) but almost 95% or more will be invested based on your risk preference and appetite.

Hope this helps!

From what I know , most of the robo Advisors dividends are all reinvested into your portfolio. Hence you can actually treat the system as compounding interest. So everytime there is a dividends it get reinvest , your portfolio get bigger and bigger with each dividends paid.

For what I know about smarty, they will invest whatever amount that has been transfer into the goal itself.