Hi Baozi,
Did you end up figuring out what you are supposed to do? The responses to your post do not appear helpful, just snarky comments. I'm in the same boat as you, and similarly wonder if we can continue to use TurboTax and the only difference is at the submission step (electronic versus in hardcopy), or if the mandatory e-payment needs to be submitted earlier (e.g., quarterly, like for federal tax purposes). Any experience and insight you can share would be greatly appreciated.
By the way, don't know if you also went down this path, but the ftb.ca.gov website is a disaster. On the page to choose the payment type, there's simply no choice for mandatory e-payment.
Thanks in advance,
