The reason why the special VAT invoice cannot be issued for the transfer of financial commodities is that the nature of financial commodities is different from that of goods. Financial commodities mainly refer to investment commodities such as securities and derivatives. The purpose of the transaction is to earn the price difference or gain investment income, not to be used for production and consumption. Value-added tax is a kind of consumption tax levied on goods and services, which is applicable to the transaction of goods and can be deducted from the previous value-added tax. The transfer of financial goods does not involve the actual delivery of goods, but is based on the transfer of contractual rights, which does not meet the scope of value-added tax. According to the provisions of the tax law, special invoices for value-added tax shall not be issued for the transfer of financial commodities. Such regulations help to ensure the fairness and applicability of the tax system, and also simplify the tax treatment of financial commodity transactions.