to restrictions in QBO, you'd have to assign the transaction to a customer account to do so, resulting in a credit balance to the customer(s) account. If it were me, I'd un match all the deposits that were incorrectly categorized and then assign each to an income account you desire. In my experience, after doing this a few times, QBO will recognize the pattern and show the deposits to the correct acocunt, at which point, you can just 'match' the remaining deposits. Just a thought.