In what form may contributions be made to an HSA?
Contributions to an HSA must be made in cash. As custodian of your HSA, UMB Bank, n.a., will accept contributions by check or direct deposit. UMB will also accept rollovers or transfers of assets from an Archer MSA or an HSA, in accordance with the requirements of the Internal Revenue Code. The custodian will require that those rollover contributions be in the form of cash.