As per the IRS website looks like CashDeposit is not taxable
https://www.irs.gov/individuals/international-taxpayers/nontaxable-types-of-interest-income-for-nonr...
nonresident aliens (NRAs) are not taxed on certain kinds of interest income, including but not limited to certain portfolio interest and deposit interest, that is not effectively connected with a U.S. trade or business per Internal Revenue Code subsections 871 (h) and (i), respectively, provided that such interest income arises from one of the following sources:
- A U.S. bank
- A U.S. savings and loan association
- A U.S. credit union
- A U.S. insurance company
- Portfolio Interest (Described in “3. Exclusions From Gross Income" – “Nonresident Aliens” - "Interest Income" and its subsection "Portfolio interest" of Publication 519, U.S. Tax Guide for Aliens)
