Two working days or the same day. It usually takes two working days for China Merchants Securities to close its account. First, the investor must transfer all the funds in the account to the bank card before closing the account, and ensure that there will be no transaction flow on the transfer day. When all the funds in the account are transferred to the bank card, the investor can complete the account cancellation by bringing his ID card to the account business outlet to apply for account cancellation. If there is no balance in the account, investors can directly bring their ID cards to the brokerage outlets to cancel their accounts, and they can cancel their accounts on the same day.