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Finance Updated October 14, 2026

Customs Duty

Quick Definition

Customs duty is the tax charged on solar equipment imported into India: Basic Customs Duty (BCD) on the assessed value, a Social Welfare Surcharge on the BCD, and IGST on the total. Rates differ by tariff line and change with Union Budget notifications, so check the current rate on CBIC.

Quick Facts

Term
Customs Duty
Category
Finance
Industry
Solar Trade Policy
Primary Use
Promoting domestic manufacturing
Common Users
Importers, manufacturers, EPCs
Standards
Customs Tariff Act 1975, CBIC notifications
Related Technologies
All solar imports

ALMM and inverter compliance: MNRE’s current ALMM page publishes solar PV module and cell lists, not an inverter list. Verify the inverter’s exact model documents and applicable scheme or DISCOM requirements separately.

What is customs duty on solar

Basic Customs Duty (BCD) is the import tax applied to solar equipment entering India. BCD on solar PV modules and cells, introduced in April 2022 and revised in later Union Budgets, is a trade lever supporting domestic solar manufacturing, discussed in more depth in our BCD and import duty guide for solar inverters. Combined with Social Welfare Surcharge and IGST on imports, duty adds to the landed cost over the invoice value, by an amount that depends on the rate for the tariff line.

Where to find the duty for each item:

  • PV modules and cells (HS 8541): check the current First Schedule and notifications
  • Solar inverters (HS 8504 40): rate disputed between sources, so verify on CBIC
  • Mounting structures, cables, batteries and EV chargers: each has its own tariff line, so check each item

Duty on modules has been one of the higher sectoral customs duties in India and a driver of domestic manufacturing expansion alongside the PLI scheme. Solar developers and EPCs shift to ALMM-listed Indian modules to avoid the duty, supporting Indian manufacturers.

Why customs duty matters

Project cost. Adds to capex for projects using imported modules, by an amount set by the rate in force.

Domestic manufacturing. Drives Indian capacity expansion.

PLI alignment. Customs duty + PLI scheme = comprehensive industrial policy.

ALMM relevance. Indian ALMM modules avoid the duty.

Pricing of Indian modules. Domestic prices can track import prices plus duty.

Total import burden calculation

The ₹10 figure is the invoice value of the imported module.

Technical deep dive

Customs duty by item

Where to find the Basic Customs Duty (BCD) for each solar item (we quote no rate we could not verify)
EquipmentWhat to check
Crystalline silicon and thin film modulesCurrent rate for HS 8541 on CBIC; revised in recent Union Budgets
Solar cellsCurrent rate for HS 8541; revised in recent Union Budgets
Solar invertersHS 8504 40; some listings show 20%, some guides about 7.5%; classification decides
Mounting structures, cables, junction boxesEach item’s own tariff line
Batteries and EV chargersEach item’s own tariff line

Project cost impact

Duty enters a project through the landed cost of whatever is imported. For a utility plant using imported modules, the cost effect is the module share of capex multiplied by the duty-driven landed-cost increase. Work it out from dated quotes and the rate in force; do not carry a percentage from an older guide.

Indian module manufacturing response

Indian module manufacturing capacity, 2020 to 2026 target (industry estimates)
YearIndian module capacity (GW/year)
202010
202218
202460+
2026 (target)100+

PLI Phase I and II investments driving rapid expansion.

Exemptions and special schemes

Customs duty exemptions and special schemes
SchemeExemption
SEZ (Special Economic Zone)Duty-free import for export
Bonded warehouseDeferred duty payment
Project import schemeReduced duty for approved projects
Some PM Surya Ghar importsCase-by-case bulk arrangements

Bulk import arrangements for subsidised rooftop programmes are covered further in our guide to applying for PM Surya Ghar.

Real-world applications

Project cost budgeting.

Module sourcing strategy (Indian vs imported).

PPA tariff bidding.

Manufacturer location decisions.

ALMM list compliance verification.

Best practices

Source from ALMM-listed Indian manufacturers.

Verify duty applicability before import.

Use SEZ for export-oriented projects.

Document HSN classification accurately.

Consult customs broker for complex imports.

Indian market context

Duty on imported modules has supported Indian manufacturing expansion.

PLI Tranche I and II, administered under MNRE guidelines, support gigawatt-scale cell and module factories.

Major Indian module manufacturers (Waaree, Adani Green Solar, Tata Power Solar, Vikram Solar) at full capacity utilisation.

Cell manufacturing still ramping; some imports continue.

Future BCD reviews likely as domestic capacity stabilises.

Standards and certifications

Legal and policy references behind customs duty on solar
StandardScope
Customs Tariff Act 1975Statutory basis
CBIC notificationsRate revisions
HSN classificationEquipment identification
MNRE ALMMDomestic listings
PLI scheme guidelinesManufacturing incentives

Further reading

For how Customs Duty plays out in real projects, these guides go deeper:

Sources

  • Customs Tariff Act 1975.
  • CBIC notifications on solar imports.
  • HSN classification for solar equipment.
  • MNRE PLI scheme documentation.
  • Industry analysis of duty impact.
  • IEA India Energy Outlook 2024.
  • IRENA Renewable Energy Trade Analysis.
  • BloombergNEF Solar Trade Studies.
  • India Solar Sector Reports.
FAQ

Frequently Asked Questions

What is customs duty on solar in simple words?
Tax on importing solar equipment from outside India. It raises the landed cost of imported modules and inverters compared with Indian-made ones, by an amount that depends on the tariff line and the current notification.
What is BCD?
Basic Customs Duty. The primary import tax, charged on the assessed customs value. The rate depends on the tariff line, and for solar inverters sources disagree (some tariff listings show 20 percent for HS 85044090, some guides quote about 7.5 percent), so verify it on CBIC before costing.
What is the total import burden?
BCD, plus Social Welfare Surcharge (10% of BCD), plus IGST on the combined value, and any other applicable levy. The total over the invoice value depends on the BCD rate for your tariff line, so work it out with the formula in this page and your own rate.
When was the duty imposed?
A 40 percent BCD on modules and 25 percent on cells was introduced from 1 April 2022, replacing the earlier safeguard duty regime. Union Budgets have revised customs duty on modules and cells since then, so treat those figures as historical and check the current First Schedule.
Why was duty imposed?
Protect domestic manufacturing. Reduce Chinese import dependence. Support PLI scheme.
Has it worked?
Partially. Indian module manufacturing has expanded. Imports continue at premium for capacity-constrained domestic supply.
Does it apply to all countries?
Yes. Most Favoured Nation (MFN) basis. Some exemptions for SEZ and bonded warehouse operations.
Can it be reduced?
Periodic exemptions for specific projects (e.g., PM Surya Ghar bulk imports). Generally not.
Does it affect PM Surya Ghar?
Indirectly. Customs duty on imports increases ALMM module prices, affecting subsidy stretch.
What is the impact on project cost?
For projects using imported modules, duty adds to module cost and so to capex. The size depends on the rate in force, the module share of the project and the exchange rate. Compare quotes on a landed-cost basis. It is one reason buyers shift to Indian ALMM modules.
Is there a way around BCD?
Use ALMM-listed Indian modules. Buy from manufacturers with import authorisations.
Has Indian manufacturing capacity caught up?
Largely yes for utility module capacity. Cell capacity still ramping. Premium technologies (HJT) import-dependent.
What about EV chargers?
Different HSN, different duties. Check the tariff line for the exact charger on CBIC.
Does BCD apply to spare parts?
Yes for major imported components. Smaller spares may have different rates.
Is the duty likely to change?
Government revises customs duty through Union Budget and CBIC notifications, so rates in older guides can be out of date. Check the current notification before you cost an import.
Nirav Dhanani
Written by
Nirav Dhanani · CEO

Co-founder & CEO driving Qbits Energy's product strategy and growth across India.

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