What should I do if I don't pay social security after graduating from college?

You can choose to pay back the money. However, if the time is too long, no unit will bear part of it, and personal opinions will not be returned, and the cost is too high. According to the Social Security Law, when you establish a labor relationship with your company, you only need to pay 8% of the individual contributions, which has nothing to do with you. But if the company doesn't pay the unit fee, your fee can't be included in your personal account.