Can you still find the social security paid in 1990?

This information can still be found now.

Social security inquiry methods include holding an ID card to the service hall of the local social security bureau to inquire and print the payment list, calling the local social security bureau to inquire about the payment of personal insurance benefits, and logging in to the website of the local social security bureau to inquire about the payment of personal social insurance benefits.

If you can't find it online, it's because the social security system has no digital records or the records are incomplete. However, social security records have paper files or other non-digital storage methods, which can be inquired by the local social security department. In addition, if the social security record is lost or lost, you can apply to the social security department for reissue, but you need to provide relevant certification materials.