When manufacturing plants invest in commercial rooftop solar PV systems, electricity bill reduction is only half of the financial returns. Section 32 of the Indian Income Tax Act provides significant tax offset incentives.
1. Understanding Section 32 40% Accelerated Depreciation
Under Section 32 of the Income Tax Act 1961, solar energy power generating systems qualify as renewable capital assets eligible for a **40% Accelerated Depreciation (AD)** write-off in Year 1 on a Written Down Value (WDV) basis.
For a commercial enterprise paying corporate income tax at a 25% to 30% tax bracket, writing off 40% of the total solar asset value in the very first financial year generates direct upfront cash savings that offset taxable business profits.
- CAPEX Investment: ₹1,00,000,000 (₹1.0 Crore)
- Year 1 Depreciation Claim (40%): ₹40,00,000
- Corporate Tax Offset Saved (at 25.17% tax rate): ~₹10,06,800 direct cash savings in Year 1
- Effective Net System Cost: ₹89.93 Lakhs
2. GST Input Tax Credit (ITC) Benefits
Commercial solar PV projects fall under standard 12% GST slabs (split between 70% goods at 12% and 30% services at 18%). Industrial firms operating registered GST manufacturing businesses can claim 100% Input Tax Credit against output GST liabilities.
3. Accelerating Payback down to 3.0 Years
Combining monthly power bill savings (~₹2.5 Lakhs/month for a 300kW rooftop) with Year 1 tax offsets and GST input credit reduces the capital payback period from 4.5 years down to a remarkable 3.0 years, delivering 22+ subsequent years of free clean energy.
Calculate Your Factory's Solar Tax & ROI Savings
Our commercial finance advisors will prepare a detailed 25-year cash-flow statement incorporating your corporate tax bracket and electricity tariff.