I am looking for some guidance on the following scenario please.
In January 2023 an HSA account holder intended to contribute x amount toward the 2022 tax year. Howeever, in error, he contributed the funds toward the 2023 tax year. In February 2023 all funds are transferred to a new HSA trustee in a trustee-to-trustee transfer. In March the account holder realizes the error and requests to have the January contribution recoded as a 2022 contribution. What obligation does the new trustee have to make this correction? How will this correction affect the trustee's 5498-SA filing?