Is it reliable to pay social security on behalf of others? What is the process? Is it common to sign a contract?

1. To pay social security on your behalf, you need to find the local unit yourself. 3. General payment process: Negotiate with the unit registered in the place where social security is paid - give a copy of the ID card + social security card to the unit --- the unit You can make payments to your account every month or make payments at once for six months and a year --- OK 2. Find an intermediary company to do it for you. It depends on the contract content of the intermediary company. Please pay attention to two issues: 1) Go and apply for the current month before the 15th. It can take effect; 2) Although you have signed a contract, it is still best to check the account status by yourself every month to avoid mistakes by the intermediary company