Analysis Customs 3 min read

Customs Duty Relief Limited to 19% of SEZ Domestic Supplies

TaxIntelHub · 08 April 2026 · Last updated 12 Apr 2026

The government has limited customs duty relief to 19% of the value of goods when Special Economic Zone (SEZ) units supply goods to the domestic market, impacting various industries.

The limitation of **customs duty relief on SEZ domestic supplies** to 19% marks a significant shift in government policy. Previously, SEZ units enjoyed substantial customs duty exemptions on inputs used to manufacture goods supplied to the domestic tariff area (DTA). This change aims to level the playing field between SEZ units and domestic manufacturers who do not receive similar duty benefits. The policy adjustment is expected to impact sectors such as electronics, pharmaceuticals, and textiles, where SEZ units have a strong presence. This move could lead to increased costs for DTA units sourcing from SEZs, potentially affecting their competitiveness. The long-term effect could be a recalibration of supply chains and a reassessment of the economic viability of SEZ operations focused on domestic sales.

This change likely stems from interpretations of the Customs Act, 1962, particularly concerning exemptions under Section 25, and its interplay with SEZ Act, 2005. The legal issue revolves around the extent to which customs duty exemptions can be granted for domestic supplies from SEZs, balancing revenue interests and promoting exports. This could lead to disputes regarding valuation and eligibility for exemptions.

This move signals a more cautious approach to SEZ incentives, reflecting concerns about revenue leakage and the need to support domestic manufacturing. Large corporates should proactively engage with customs authorities to seek clarifications and ensure compliance to avoid potential disputes and penalties.

SEZs were established to promote exports and attract foreign investment by offering tax and duty benefits. Over time, significant domestic sales from SEZs have raised concerns about revenue loss and unfair competition with domestic industries.

Level playing field
Aims to reduce advantages for SEZ units.
Impact on costs
DTAs may face higher sourcing expenses.
Supply chain shifts
Companies may re-evaluate sourcing strategies.

This policy change will likely increase compliance burdens and require careful evaluation of sourcing strategies for businesses interacting with SEZs. CAs and CFOs need to assess the financial impact and adjust their costing models accordingly.

Monitor any further clarifications or amendments to the customs notifications implementing this change, as well as potential legal challenges from affected SEZ units.

1 Review existing contracts with SEZ suppliers to assess the impact on costs.
2 Update costing models to reflect the reduced customs duty relief.
3 Seek legal advice to understand the implications for specific transactions.
How does this affect existing contracts with SEZ suppliers?
Existing contracts may need to be renegotiated to account for the reduced customs duty relief, potentially increasing the cost of goods sourced from SEZs.
What documentation is needed to claim the 19% customs duty relief?
Detailed documentation, including invoices, import declarations, and proof of SEZ status, will be required to substantiate the claim for the limited customs duty relief.

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