GST Cut on Solar Modules Offers Limited Relief as Developers Struggle With ITC Delays

Last updated: 22 November 2025


Quick Summary
Despite a recent reduction in GST on solar modules from 12% to 5%, solar developers are experiencing limited financial benefits. The lower tax rate has hindered their ability to claim Input Tax Credit (ITC), a crucial mechanism that allowed for full credit utilisation under the previous 18% GST regime. While the government states ITC is still available through a refund process, delays in processing, particularly for projects with GST-exempt electricity output, are preventing immediate financial gains. The Central Electricity Regulatory Commission (CERC) has recognised the GST reduction as a 'Change in Law', potentially allowing tariff adjustments, but the actual benefit hinges on efficient coordination between developers, discoms, and auditors.

Two months after the government slashed GST on solar modules from 12% to 5%, solar developers say the relief has been far more muted than expected, as the lower tax rate has restricted their ability to claim ITC, limiting real financial gains. Industry players mentioned that although the GST cut ma
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The GST on solar modules was reduced from 12% to 5%.

The lower GST rate restricts developers' ability to claim Input Tax Credit (ITC), which was fully utilisable under the previous 18% rate, thus limiting real financial gains.

The government maintains that ITC is still available through an inverted duty structure refund mechanism and is working to expedite processing.

The CERC declared the GST reduction as a 'Change in Law' under renewable energy PPAs, allowing developers to claim tariff adjustments or refunds for projects with invoices or payments dated after September 22, 2025.

Some developers, like ReNew, have publicly announced price reductions, effectively passing on the GST cost benefit to customers, though the exact quantum is not disclosed.

Developers emphasise the need for faster ITC refunds, better supply-chain alignment, and policy consistency, in addition to the GST cut, for substantial financial relief.




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Finance news reporter covering taxation, GST, income tax, business compliance, and economy updates. I simplify complex financial topics into easy-to-understand articles for professionals, taxpayers, and business owners on leading finance and tax platforms.

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