I'm currently in the process of migrating to Zoho Books. I've entered all my customers opening balances in the Accounts Receivable section however I'm not sure how to deal with the VAT for the outstanding invoices.

I know I can add an opening balance for Output VAT however I'm not sure how to record a payment against this once the customer pays the outstanding balance. Ie Invoice value is £100 + £20 VAT, customer pays £120 but that all gets removed from the customer opening balance.

We use the cash accounting scheme so the VAT is paid on payment.

Do I have to re-create the invoices in Zoho with dates prior to the migration date and remove the opening balances?