Yes. When I initially signed up for TD, I put Discover as my bank account because I was getting ready to switch my direct deposit to them but then started reading horror stories about Discover so I didn't follow through with the change but it was too late for TD and there was no way I was going to go through their nightmare of changing so I gave up the idea of buying I bonds until I read a thread on Bogleheads that said it changed. Like I said, it took seconds to add Fidelity and delete Discover.