Can it be done? I mean, is it legal since you don't have to pay no taxes on any gains.

Quote from Boomer:
i was reading an interview in the new active trader about a trader who trades through his 2 roth accounts. he says that this is one of his key success factors, and wonders why so many traders neglect this principle. i would love to hear what others traders have to say about it. i am an inquiring mind also.
Quote from mktman:
Hmm.
Roth or any IRA is on a cash basis not margin.
Correct?
Therefore, T +3 applies.
Correct me if I am wrong.
mktman