Is there anything that can be done about missing beneficiary designations? I’m handling the estate of a deceased TSP account holder and TSP claims she had no beneficiaries. We have a 2021 year end statement showing beneficiaries. They will not accept this and claim the system change in 2022 required participants to fill out new beneficiary forms. This is unacceptable. There will be huge tax consequences and delays. The deceased participant’s beneficiary designations should be honored since there is proof and the deletion of data (apparently) when systems were changed is due to the ineptitude of TSP. Beneficiary data should have transferred.