Thank you both.

@john-pero - yes, I post a security deposit (SD) received to an"other current liabilities" account and also refund amounts from that account. I understand that deductions from SD would be dealt with differently.

@TaliaI - two screenshots are attached (one to this post, the other to the next post). One shows the situation where I (1) invoiced SD, (2) received payment and (3) subsequently refunded the full amount. The second screenshot shows where an SD was paid by a client before I invoiced it, so I (1) issued a sales receipt and (2) refunded that amount in full using a refund receipt.