How do I link my bank account to turbo tax when I receive my income tax return?

[Critter-3]

You cannot "link" it  however when you complete the return interview in the program you will get to the FILE tab where you can enter your bank direct deposit information before you efile.  

[VolvoGirl]

If you already filed and it was accepted or you mailed it then it is too late to add your bank account info.