the three methods to deal with the arrears of funds include: paying the arrears and going through the formalities of paying them back.

1. Pay back the unpaid amount: pay back the unpaid amount in time according to the unpaid amount and policy provisions. Usually, the amount owed needs to be paid in accordance with the prescribed proportion, and the specific proportion varies from region to region. You can consult the social security department for the specific amount and method of payment.

2. go through the formalities of payment: you need to go through the relevant formalities to pay the outstanding amount. You need to go to the social security department to go through the formalities of making up the payment, and provide relevant supporting materials, such as ID cards and payrolls. Please consult the local social security department for specific procedures and required materials.