I don't follow your thinking?
1. Turbotax portal will not work for those who have already filed but just wish to update their direct deposit information.
2. The link I shared above states IRS is working together with turbotax to create the portal.
My question is what makes you think that turbo tax is not the IRS portal when the link i provided states the IRS is working with turbotax. I just hope that whoever is creating the portal for the IRS (which i believe is turbotax by the link i sent above), that they WILL ALLOW individuals to update their direct deposit information, regardless if they have filed or not.
