Just try to follow the government laws since it's our obligation to pay taxes so that we can contribute the growth on our country but since you are asking this you can try to check on your wallet if theirs an remittance withdrawal option since mostly taxes are excluded on that option and the only thing you need to pay is the transaction fee. Also better for you and people not to practice this doings since you might get in trouble in future.
Some people does not follow, if they can avoid tax legally, then they will do it.
I think that's what OP is trying to give, it's not illegal, what illegal is tax evasion that would certainly put us in jail.
With this kind of anonymous offer, I think it's hard to trust people especially on the tax thing as we could be compromise.
@arwin100 , personally, if possible not to pay for the tax, I would not, because in our country double taxation is happening.