The invention belongs to the technical field of computers, and provides an invoice par content processing method and terminal equipment. The method comprises the following steps of acquiring a code ofa transaction object, wherein the code is used for representing the transaction object; acquiring a flag BIT which is preset and corresponds to the code of the transaction object, wherein the flag BIT is used for marking the tax type of the transaction object, and the tax type comprises tax-free, no tax and zero tax rate; and outputting the tax payment information related to the transaction object and matched with the tax type of the transaction object to the invoice par of the transaction object, wherein the tax payment information comprises a tax rate and a tax amount. The method and the equipment disclosed by the invention can be fully applied to the invoice par content of an issued invoice. Therefore, the tax payment information of the transaction object can be embodied fully and clearly. The subsequent operations such as account making and the like are greatly facilitated.