(1) Where a dealer registered under the Act and assigned with TIN effects sales to another registered dealer assigned with TIN, the dealer making the sale shall issue a tax invoice.

(2) Where a dealer registered under the Act and assigned with TIN effects sales to an unregistered dealer or person, or a registered dealer assigned with SRIN, he shall issue a retail invoice.

(3) Where a registered dealer effects sales of goods, specified in Schedule 'C' of the Act to any dealer irrespective of whether he is registered or not under the Act, he shall issue a retail invoice.

(4) Where a registered dealer liable to pay tax under clause (b) of section 9 effects sale of goods, the tax-exclusive price of which is rupees two hundred or above in any single transaction, he shall issue a retail invoice against such sale, in accordance with the provisions of sub-section (2) of section 62.

(5) Separate accounts shall be maintained in respect of sales in respect of which tax invoices are issued and sales in respect of which retail invoices are issued.

(6) Where a registered dealer liable to pay turnover tax under clause (b) of section 9 issues retail invoices in respect of sales and the sale price charged therein is inclusive of tax, the tax amount due for payment shall be calculated by applying the tax fraction to the tax-inclusive sale price.

(7) All tax invoices and retail invoices issued against sales made by a registered dealer shall indicate the tax charged at each rate of tax separately.

(8) Tax invoice/retail invoice issued by a registered dealer shall be signed by the dealer himself or his authorised representative.

(9) Where invoices as referred to in sub-rule (8) are generated electronically they shall also be signed by the dealer himself or his authorised representative.