Hi Benjamin,
Unfortunately, transferring progress to another account is not possible, but has been requested for a while by some. If possible, it is best to continue using the account with the progress.

I am having this issue as well. I signed up for Khan Academy, along with all of my kiddos, but when my kiddos signed in with their tablets, using there Google accounts, it created new accounts for them. Also, my oldest doesn't have an "under 13" email, so he is signed up as a parent. Is there anyway to be put on a wait list, in case this option does become available in the future?

Hi, i have 2 of my kids on khan academy both above 13, but they use the same computer, the problem is everytime i sing in one of them then when the other want to use khan academy he cant sign in it goes back to the fisrt one account. What can i do about this withoit having to change the password everytime?

We need a way to merge two accounts.  This is a huge problem.  Thanks!

I have had an account for my child for several months but recently her teacher began using Khan Academy due to school closures.  As such, the teacher made accounts for her students and now wants my daughter to use that account.  I need to be able to merge the two so that all of her current progress can be visible to her teacher without having to start her all over again.  

I agree with what is said above! For those of us parents that have had our kiddos using KA forever and now are required to use KA through their school google email that data should be able to be transferred to their google account. It’s honestly ridiculous that they should have to do work over or lose all their progress!