suspense account

n.
A temporary account in which entries of credits or charges are made until their proper disposition can be determined.

An account that is used to store short-term funds or securities until a permanent decision is made about their allocation.

Investopedia Says:
These accounts are required in instances when the decision process is lengthy.

Temporary account (i.e., not included in the financial statements) for recording part of a transaction, such as those involving receipts or disbursements, prior to final analysis or identification of that transaction.