Can the State Retrospectively Withdraw a Tax Exemption on Imported Sugar? Supreme Court Clarifies

Case Name: Asia Sugar & Chemical Co., Davangere v. State of Karnataka & Others (with M/s Indian Sugar and General Exports Imports Corporation Ltd. v. State of Karnataka & Others)

Date of Judgment: 13 July 2026

Citation: 2026 INSC 693 | Civil Appeal No. 48 of 2009 (with Civil Appeal arising out of SLP (C) No. 25469 of 2009)

Bench: Justice Aravind Kumar and Justice Prasanna B. Varale

Held: The Supreme Court held that the Karnataka Legislature was competent to retrospectively restrict the sales tax exemption on sugar by confining it to sugar “produced or manufactured in India.” However, the Court ruled that while the State could recover the principal tax liability pursuant to reassessment, no penalty could be imposed for the pre-amendment period, and interest could be levied only from the date of the lawful reassessment demand, not from the date of the original transactions.

Summary: The dispute arose after the Karnataka Legislature retrospectively amended the Karnataka Sales Tax Act, 1957 by restricting the exemption available on sugar to sugar produced or manufactured in India. Based on the amendment, reassessment proceedings were initiated against dealers who had earlier sold imported sugar without collecting sales tax, as imported sugar had originally been treated as exempt.

The assessees challenged the retrospective amendment, contending that imported sugar was covered by the exemption prior to 2001 and that they had not collected tax from purchasers because both the statutory provision and the Department itself treated such sales as exempt. While the Single Judge of the Karnataka High Court struck down the retrospective operation of the amendment, the Division Bench upheld its validity.

The Supreme Court held that prior to the 2001 amendment, imported sugar was indeed covered by the exemption entry, but the Legislature was nevertheless competent to retrospectively withdraw that exemption. At the same time, the Court observed that imposing penalty and retrospective interest on dealers who had acted in accordance with the law as it then stood would be unfair and oppressive. Accordingly, it protected the assessees from penal consequences while permitting reassessment for recovery of the principal tax liability.

Decision: The Supreme Court partly allowed the appeals. It upheld the constitutional validity of the retrospective amendment but directed that reassessment shall be confined to determination of the principal tax liability. The Court further held that no penalty shall be imposed for transactions preceding the amendment, interest shall run only from the date of the reassessment demand, and liability relating to inter-State sales shall be recomputed in accordance with the Central Sales Tax Act, 1956.