How to complain to the social security bureau that the unit has not paid social security?

Legal analysis: 1. Provide valid evidence and apply to the labor department for labor arbitration; 2. On the grounds that the unit fails to pay social security, you can submit a written resignation to the unit, you can leave immediately, and you can claim that the unit pays social security; If you don't sign a labor contract, you can ask for double salary from the second month to one year.

Legal basis: Article 16 of the Administrative Provisions on the Declaration and Payment of Social Insurance Fees, if an employer is under any of the following circumstances, the social insurance agency shall issue a Notice of Default of Social Insurance Fees within five working days from the date of finding out the fact of default, order the employer to pay back the social insurance fees within five working days after receiving the notice, and inform it that if it fails to pay the social insurance fees within the time limit, it will be handled in accordance with the provisions of Articles 63 and 86 of the Social Insurance Law:

(1) Failing to declare and pay social insurance premiums as required; (2) Failing to pay social insurance premiums in full and on time after the declaration; (three) concealing or omitting the number of employees, the payment base and other matters, and failing to pay social insurance premiums.