Both zero-rated and exempt supplies may result in no GST being charged on the outward supply. However, they are treated very differently under the GST law. The distinction directly affects Input Tax Credit (ITC) entitlement and, consequently, the cash flow of a business.

Zero-Rated Supplies

Under Section 16 of the IGST Act, exports of goods or services and supplies to a Special Economic Zone (SEZ) developer or unit for authorised operations are zero-rated.

Although no GST is ultimately borne on these supplies, they remain taxable supplies under the GST framework. Businesses can claim ITC on inputs, input services, and capital goods used for making zero-rated supplies and, subject to the prescribed conditions, claim a refund of accumulated ITC.

Exempt Supplies

Exempt supplies are those exempted by notification, attracting a nil rate of GST, or otherwise treated as exempt under the GST law.

Under Section 17(2) of the CGST Act, ITC is not available on inputs used exclusively for making exempt supplies. Where a business makes both taxable and exempt supplies, ITC must be apportioned in accordance with Rules 42 and 43 of the CGST Rules, with the ineligible portion reversed.

The Practical Difference

  • An exporter of software services can claim ITC on GST paid for office rent, professional fees, and software subscriptions, and may also be eligible to claim a refund of accumulated credit.
  • A hospital providing exempt healthcare services pays GST on similar procurements but generally cannot claim ITC. That GST becomes part of its operating cost.

Common Mistakes

  • Treating exempt supplies as zero-rated and incorrectly claiming ITC or refunds.
  • Failing to reverse proportionate ITC where both taxable and exempt supplies are made.
  • Assuming every supply on which no GST is charged has the same ITC consequences.

Why This Matters

Whether a supply is zero-rated or exempt is not merely a classification issue. It determines ITC entitlement, refund eligibility, and the overall GST cost of the business. Incorrect classification can lead to excess refund claims, incorrect ITC availment, interest, and penalties. Businesses making both taxable and exempt supplies should periodically review their ITC apportionment to ensure continued compliance.