Yes..

I'm saying after I log into the account that has activated a code..it still asks to enter a code. 

So I enter the same code and it gives the "already in use" error.

It should recognize that i have 2 uses still, no?

@TbTxWil In this case, we recommend that you give our product support team a call. 

I've always bought the turbotax and my son and I share the software.  He has completed his taxes but when I now try to sign in to do my taxes, it says the license code is already linked into another account  error code 608.  This has never happened before.  I don't want to log into his account and therefore I assume we would be able to access each other's information?

help,

Maureen  / Mom

@MAUREEN MCDOONALD Is TurboTax Online the version you are using? 

There is only one account that TurboTax Online can link to. If it is linked to your son's account, it cannot be linked to yours. You must prepare and submit your return using his account in order to use the same product.