Solar Panel Depreciation Rate Section 32: B2B Solar Tax Benefits India
Quick Summary
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.
1. Understanding Section 32: Accelerated vs. Standard Depreciation
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.
To maximize benefits, combine this with other commercial incentives outlined in our guide on Solar Subsidies for Industries in Uttar Pradesh.
2. 5-Year WDV Solar Depreciation Calculation Table
Below is an illustrative calculation table showing the Written Down Value (WDV) and annual tax savings for a βΉ20 Lakh (100 kW) commercial solar system, assuming a corporate tax bracket of 25.17% (including surcharge and cess):
| Financial Year | Opening WDV (Asset Value) | Depreciation Rate | Depreciation Amount Claimed | Estimated Tax Savings (25.17% Bracket) |
|---|---|---|---|---|
| Year 1 (Full 180+ Days) | βΉ20,00,000 | 40% | βΉ8,00,000 | βΉ2,01,360 |
| Year 2 | βΉ12,00,000 | 40% | βΉ4,80,000 | βΉ1,20,816 |
| Year 3 | βΉ7,20,000 | 40% | βΉ2,88,000 | βΉ72,489 |
| Year 4 | βΉ4,32,000 | 40% | βΉ1,72,800 | βΉ43,493 |
| Year 5 | βΉ2,59,200 | 40% | βΉ1,03,680 | βΉ26,096 |
By Year 5, your business has written off over 90% of the solar plantβs value, yielding βΉ4,64,254 in net tax savings. To evaluate capital costs for such a project, refer to our analysis of the Industrial Rooftop Solar System Price in UP.
3. The 180-Day Rule for Solar Plant Commissioning
Under Section 32, timing is critical. To claim the full 40% depreciation in the year of purchase, the solar plant must be installed and active for at least 180 days in that financial year (i.e., commissioned before October 3rd).
If the solar plant is commissioned for less than 180 days, you can only claim 50% of the prescribed depreciation (which equals 20% in the first year). The remaining balance is carried forward into the next year’s opening WDV.
For financing large-scale projects, you can review our guide on Commercial Solar Loan Options in Lucknow or check the requirements for Solar Panels for Commercial Buildings in UP.
4. Who Can Claim Accelerated Solar Depreciation?
Any business entity that records business income can claim Section 32 solar depreciation benefits. This includes:
- Sole proprietorships and partnership firms
- Limited Liability Partnerships (LLPs)
- Private Limited and Public Limited companies
- Manufacturing plants, warehouses, cold storages, private schools, and private hospitals
Note that individual salaried residential consumers do not have business income and therefore cannot claim Section 32 depreciation. Their benefits are covered via upfront capital subsidies instead.
6. FAQs (Frequently Asked Questions)
Can I claim additional depreciation on solar panels in India?
Yes. Manufacturing companies that set up solar installations for captive power generation can claim an ‘additional depreciation’ of 20% in the first year under Section 32(1)(iia) of the Income Tax Act. When combined with the standard 40% rate, this allows you to write off up to 60% of the asset cost in the first year.
What documents do I need to claim solar depreciation during tax filing?
You need the official tax invoice from your empanelled solar installer (listing module serial numbers), the net-metering commissioning report from MVVNL/UPPCL showing the synchronization date, and your chartered accountant’s verification audit for asset capitalization.
Schedule a Verified Solar Feasibility Assessment
Ready to offset your grid consumption and secure lifetime savings? Rudransh Solartech is your empanelled solar EPC developer in Uttar Pradesh. We manage the entire lifecycle: site structure design, civil concrete foundations, grid-tie testing, DISCOM applications, and direct subsidy processing.
For residential inquiries, view our residential rooftop solar page to book a free home survey. For factory, warehouse, or commercial building arrays, see our commercial solar installation page for a formal custom engineering proposal.
βοΈ Reduce Your Electricity Bills to Zero Today
Book a free site audit and get a transparent price breakdown for your solar installation. We guarantee UPNEDA compliance and genuine components.
π Rudransh Solartech Service Areas in Uttar Pradesh
Our engineering teams cover all major commercial hubs and municipal divisions in UP: