Trade discount deduction can survive credit notes and need not be shown in the invoice itself.

A trade discount under rule 9(a) of the Kerala General Sales Tax Rules, 1963 is deductible if it is allowed in accordance with regular trade practice and the accounts show that the buyer paid only the net amount. The provision does not require the discount to be shown in the invoice itself, so an invoice-based restriction is too narrow. Discounts granted later through credit notes, including target, annual, special, or turnover discounts, may also qualify as deductible trade discounts when the statutory conditions are met. The contrary view was set aside and the matter remitted for fresh determination without rejecting the claim solely because the discounts were not reflected in the sale invoices.

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Issues: (i) Whether trade discount under rule 9(a) of the Kerala General Sales Tax Rules, 1963 must be shown in the invoice itself to qualify for deduction from taxable turnover; (ii) Whether discounts given by credit notes issued after the sale can nevertheless qualify as deductible trade discounts under the rule.

Issue (i): Whether trade discount under rule 9(a) of the Kerala General Sales Tax Rules, 1963 must be shown in the invoice itself to qualify for deduction from taxable turnover.

Analysis: Rule 9(a) requires that the discount be allowed in accordance with the regular practice in the trade and that the accounts show that the purchaser paid only the sum originally charged less the discount. The provision does not speak of invoices as a condition for deduction. The definition of turnover in the parent Act also recognises discounts as amounts not to be included in turnover. The invoice-based restriction adopted by the High Court was therefore too narrow.

Conclusion: The invoice itself is not a mandatory requirement for deduction of trade discount under rule 9(a).

Issue (ii): Whether discounts given by credit notes issued after the sale can nevertheless qualify as deductible trade discounts under the rule.

Analysis: The governing test is whether the discount is a genuine trade discount allowed as part of the regular business practice and whether the accounts reflect that the buyer paid only the net amount after discount. Earlier decisions recognised that trade discount is distinct from cash discount and that a discount can still be deductible even if it is not deducted at the time of each invoice, including where it is reflected by credit notes. On that basis, discounts such as target, annual, special, or turnover discounts cannot be rejected merely because they are granted later through credit notes.

Conclusion: Discounts granted through credit notes can qualify as deductible trade discounts if the statutory conditions are satisfied.

Final Conclusion: The High Court's contrary view was set aside, and the assessments were remitted for fresh determination without rejecting the assessees' claim solely because the discounts were not shown in the sale invoices.

Ratio Decidendi: Under rule 9(a), a trade discount is deductible if it is allowed according to regular trade practice and the accounts show payment of only the net amount; it need not be shown in the invoice itself.

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