I do not understand how Zoho deals with VAT and payments against opening balances. For example, lets say I have a customer with an opening balance of £1000. Around £200 of this will be VAT. So the customer pays me £1000 and I record it as a payment received in Zoho and the opening balance is reduced to zero.. But Zoho does not seem to be recording the £200 output VAT. Indeed, if I run a VAT report there is no output VAT on payment received. Why is this and how can I record the output VAT correctly?