Hi there, @Dlmm324. I can share with you some insights on how to remove the balance from your A/R account.
Usually, you can record a payment or an income transaction to clear the balance from your A/R account.
You may also review this article for more information: Record invoice payments in QuickBooks Online.
Additionally, you can create a journal entry to remove the balance. Before that, I suggest consulting with your accountant or visiting our ProAdvisor page to look for one. This way, we can prevent messing up your book.
In case you had an existing deposit and want to apply the entry as an invoice payment, use this article as your guide in handling the transactions: How to link a bank deposit to an invoice.
Please let me know if you have any other questions about removing the AR balance in QBO. I'll be right here to provide additional assistance. Have a good one!