Doubt in Prepayment Accounts

Hi, Sales and Purchase Prepayment accounts must be created individually for each VAT Identifier. But in indian Localisation We create VAT in Sales Tax but not in VAT posting groups. My company uses Three types of VAT , now how to create the accounts for prepaments in general ledger.

Customer Prepayment account is defined in the general posting setup therefore you can define as many accounts as lines exist in the setup. Normall I would use account equal to number of General Business Posting Groups defined.