It depends on how much personal income tax the broker can deduct. If the deduction is small, the broker can go to the local taxation bureau to make an invoice himself, and the invoice will be mailed to the futures company without withholding. Futures companies can also find some companies with tax incentives. Through such a company, taking away the commission can reduce a lot of taxes. Some companies withhold 20%, and some companies can avoid tax by 7%, which can save some money. But such a company is not easy to find, and you have to be familiar with it when you find it, otherwise you will lose a lot. What would you do?