Solar Panel Depreciation Rate Section 32: B2B Solar Tax Benefits India

The standard solar panel depreciation rate section 32 of the Income Tax Act is 40% per annum on a Written Down Value (WDV) basis for solar power generating assets. Commercial businesses, factories, and partnership firms can claim this accelerated tax write-off to reduce taxable business income, effectively saving up to 30% of the total installation cost in tax liability during the first year of operation.

Standard plant and machinery depreciation under Indian tax law is set at 15%. However, to promote renewable energy, the government classifies solar panels and inverters as “Renewable Energy Devices,” granting them an accelerated rate of 40% per annum under Section 32.

This tax provision allows business entities to write off the asset value much faster than standard machinery. By doing so, businesses lower their taxable profit, which results in substantial corporate tax savings in the first few years of installation.