My social security was transferred out in Shenzhen two years ago. With the social security payment voucher, is it still valid to transfer to Xiamen now?

You can turn! Submit a written application for transferring and continuing the basic old-age insurance relationship to the social security agency of the new insured place to the resigned employer or insured person, go to the local social security office to handle the transfer formalities in person with the original and photocopy of the social security card and ID card, and call the Shenzhen Social Security Bureau at 12333 (it's not easy to call, it's best to call immediately at 9: 00 am).