For the deduction time rules of fixed investment, please consult the bank customer service directly! Different banks have different rules. Regarding the deduction of fixed investment, different banks have different regulations: (Bank of Communications) When your account runs out of money for one month, your application for regular subscription in the current period fails, even if there is enough balance in the account after deduction, it will not be deducted in the current period. If you have not applied for three consecutive periods, the application for regular subscription will be automatically terminated. The deduction time of the (ICBC) fund's fixed investment is as follows: if the agreement takes effect on the same day and the balance is sufficient, the deduction will be made at that time (if the balance is insufficient, the deduction will be delayed). If the agreement takes effect on the same day, the subscription will be deducted on the next fund trading day. Deduction and subscription will be made on the next fund trading day on the effective date of this agreement. You can choose the deduction time when the fund's fixed investment takes effect for the first time, and the deduction will be automatically made on the first working day of each month from the following month. Fixed investment requires sufficient balance in the account. Consignment banks have different regulations on fixed investment, and the date of deduction is also different. Be careful of the failure or termination of fixed investment due to insufficient funds. If the account balance of Bank of Communications and China Construction Bank is insufficient and the deduction is unsuccessful on the transfer date after the agreed date or holiday, even if the account defaults once and the transfer is unsuccessful for three consecutive months, the fixed investment plan will be automatically terminated. ICBC is different. Generally, the fixed investment business is recorded on the first trading day of each month. If the balance is insufficient, the system will automatically scan. No matter what day of the specified month, as long as the funds in the account are full, the deduction will be made automatically. It should also be noted that the investment plan will be terminated if it fails to plan successfully for three consecutive months and defaults for three times. So make sure the account is rich. According to the relevant announcement of ICBC, the fixed investment rules are as follows: 1, and the specific deduction date is not specified. Generally, the deduction date is the first trading day of the month; 2. If the customer makes a fixed investment before 15: 00 on the same day, the deduction will be made on the same day; if the customer makes a fixed investment after 15: 00, the deduction will be made on the next day; 3. If the balance of the fund account designated by the investor is insufficient within the legal trading hours of the day, the banking system will automatically continue to deduct the money the next day, and calculate the confirmed share according to the net value of the fund share on the day of actual deduction; 4. If the balance of the deduction account is insufficient and the number of defaults reaches three times, the system will automatically terminate the investor's fund fixed investment business; In addition, investors should understand the calculation rules of default: if the current balance of the investor's fund account is insufficient, the current deduction subscription is unsuccessful and the number of defaults is increased once. In the next period, the system will not only deduct the subscription money of the previous period, but also deduct the subscription money of the current period. If the previous subscription and the current subscription are successful, the number of defaults will be reduced by one; If the supplementary subscription is successful and the current deduction subscription is unsuccessful, the default number will remain unchanged; If the supplementary deduction subscription and the current deduction subscription are unsuccessful, the number of defaults will be increased by one; And so on.