If you're offshore and working with bucket shops anyway, then sure, you can transfer funds by trading against yourself at another account. Just find a very illiquid product with a massive bid/ask spread. Your gaining account offers the product a penny inside the current ask, making it the NBBO. Your "losing" account then immediately buys from your "gaining" account at the ask. The losing account then immediately turns around and offers a penny inside the bid, and sells it back to the "gaining" account at a loss. Rinse and repeat until you've moved all your money over. Pretty sure there are one or two rules that prohibit this, but like I said, if you're dealing with bucket shops making up their own rules anyway then why not do some illegal shit yourself!