If I cash an employee's paycheck and redeposit the check back as a deposit, how do I enter this transaction?

in QB this is a multistep process

transfer the funds to the cash account from checking, and then pay it out from the cash account and use an expense account called clearing expense. You may have to create that expense account first if you do not have one.

Then deposit the check and use that same clearing expense account as the source account for the deposit