There are also the following possibilities: If the payer is over the specified age (male 720 months, female 600 months) in the month of paying the endowment insurance premium for flexible employees, he may be prompted that "pretreatment failed" when paying, and the payer can register the change in the social security department first, and then pay through the channels provided by the tax department. If the payer has made a declaration in the tax hall, electronic tax bureau or other banking channels but fails to pay the fee, and then pays the fee through other channels, it will also prompt that "pretreatment failed", and the payment should be made after verification. If you complete the payment without signing a bank withholding agreement, please check whether the payment is deducted 24 hours after payment, and repeated payment will also prompt "pretreatment failed".