Examine the concept of 'inverted duty structure' under GST and its impact on MSMEs, citing measures available to address it.

An inverted duty structure arises when the GST rate on inputs exceeds the rate on the finished output, causing unutilised input tax credit (ITC) to accumulate with the manufacturer. Though not defined in the CGST Act, it is recognised through the refund route under Section 54(3)(ii) [3], and remains a persistent design flaw affecting labour-intensive sectors.

Anatomy of the distortion

• Rate mismatch: inputs taxed at 18% feed outputs taxed at 5% or nil — common in textiles, footwear, fertilisers and paper-based stationery.
• Exemption trap: a nil rate is not a zero rate; refund of accumulated ITC is expressly barred where the output is nil-rated or exempt [3]. The GST Council's September 2025 rationalisation exempting exercise books and notebooks illustrates this — consumer-friendly, yet it blocked ITC for producers [1].
• Cost cascading: blocked credit becomes a sunk cost embedded in the final price, defeating GST's value-added logic.

Impact on MSMEs

• Working capital squeeze: unlike large firms, MSMEs cannot absorb credit locked up for months; refunds cover inputs only, excluding input services and capital goods [2].
• Compliance burden: the Rule 89(5) refund formula and documentation demand professional support that small units lack [2].
• Import vulnerability: where FTAs allow zero-duty finished imports, tax-burdened domestic MSMEs lose price competitiveness — the notebook industry's plea for a minimum import price and an anti-dumping probe is a live example [5].
• Employment risk in units that are typically small, family-run and regionally clustered.

Measures available

• Refund of accumulated ITC under Section 54(3)(ii), operationalised through CBIC clarifications [2].
• Rate rationalisation by the GST Council to align input and output slabs, and preferring a low rate over exemption where ITC matters.
• Trade remedies — anti-dumping, countervailing and safeguard action through the DGTR, plus FTA rules-of-origin review [4].

Correcting inversion is essentially a coordination task between tax and trade policy. A calibrated approach — aligning slabs, faster automated refunds, and consumer relief delivered through low rates rather than blanket exemptions — would protect affordability while sustaining MSME competitiveness, advancing the "Make in India" and self-reliance objectives that GST was meant to serve.