Generally, it's irrelevant that the time deposit is held by a SEP/IRA.
Last edited by Ken_Pegasus; 12/02/17 04:32 PM. Reason: Rewritten
Take a look at your TISA disclosure. It must disclose any limitations on a time deposits. In all likelihood, it says no additional deposits are permitted.
Yet, some banks do offer time deposit open accounts (TDOA's). Their disclosures clearly indicate additional deposits are allowed. However, the banks offering TDOA's make a conscious decision to offer the product in the ALCO environment that Brian mentions. They do not do it in "one off" decisions where the proper disclosures are not in place.
In this world you must be oh so smart or oh so pleasant. Well, for years I was smart. I recommend pleasant.