Yeah the answer is depart.
But theres no way these figures are accurate.
Taking things too literally and not seeking local expertise(admittedly,perhaps to protect knowledge of his income)has led him astray.
i think the hidden story (there’s always one) is that he doesn’t have the documentation on his trades to prove his income. So they go by proceeds.
he’s either filed incorrectly or there’s real shady stuff in his pnl.
I bet he doesn’t use an accountant and instead asked his buddy the law but no one is actually figuring out his specific issue.