Do you want to know what is unapplied cash payment income of Quickbooks? We can simply note that in Quickbooks, unapplied cash payment income is represented by the account that generates revenue on a cash basis. You must pay the installment on the payment date rather than the receipt date if you want to clear the unapplied cash installment. For the purposes of accounting and bookkeeping, this payment may need to be cleared. QuickBooks Desktop and the accessible Online version can both be used for the interaction.