Write off closed clients overpaid balance?

I have a client who overpaid before they stopped working with me.

How to I write this amount off?

They are no longer with us, and have closed. How to remove this balance?

Thanks

You can pay back / refund to customer for credit note invoice (negative balance). Just make payment for that invoice, payment type Pay.

Or make journal entry, and debit back receivable invoice and credit to expense/revenue account

HI there.

The store is closed.

I will be honest and say that I do not understand your other suggestion:
“…make journal entry, and debit back receivable invoice and credit to expense/revenue account”

It is likely clear to a well trained accountant/bookkeeper, but I am neither one or the other.

Can you explain this in more detail?

Thanks