Businesses can claim depreciation on air conditioners as plant and machinery at 15% using the Written Down Value (WDV) method. The cost is spread over time instead of being claimed fully in the year of purchase.
As per the Income Tax Act, 1961, and the Income Tax Rules, 1962 (Appendix I), ACs qualify as plant and machinery and are therefore eligible for depreciation. This reduces taxable income, reflects the asset's true value in financial statements, supports long-term planning and provides a tax-deferral advantage that can improve short-term cash flow.
Depreciation rate for AC in India
Air conditioners fall under the plant and machinery category and are depreciated at a standard rate of 15% under the WDV method as per the Income Tax Rules.
The following rules determine the depreciation claim:
- The standard rate is 15% of the asset's WDV.
- If the AC is used for less than 180 days during the financial year, the rate for that year is 7.5%.
- From Year 2 onwards, depreciation is calculated on the WDV, not the original purchase price.
- Depreciation applies to a "block of assets" rather than individual assets.
How to calculate depreciation on AC
Depreciation on an AC can be illustrated with a practical example relevant to Indian businesses.
Example: A business purchases an AC for ₹60,000 on 1st April.
- Year 1 depreciation = ₹60,000 × 15% = ₹9,000
- WDV at the end of Year 1 = ₹51,000
- Year 2 depreciation = ₹51,000 × 15% = ₹7,650
- WDV at the end of Year 2 = ₹43,350
Depreciation continues on the block of assets. The value typically reduces but does not reach zero under the WDV method unless the block ceases to exist.
If purchased mid-year:
If the AC is purchased and put to use after the midpoint of the financial year (used for less than 180 days):
- Depreciation = ₹60,000 × 7.5% = ₹4,500
Business use vs personal use
Not every AC purchase is eligible for full depreciation under tax rules. The key factor is the asset's usage and whether it is clearly linked to business activity.
Full depreciation can be claimed when:
- The AC is installed in a commercial space such as an office, shop, clinic or factory.
- It is used exclusively for business purposes.
- Usage can be supported with evidence such as business premises records, invoices or electricity bills.
Proportionate depreciation applies when:
- The AC is used for both personal and business purposes, such as a home office.
In such cases, only the business-use portion of the expense can be claimed. The split should be reasonable and documented based on the area used, working hours or actual usage. Proper records help justify the claim and reduce the risk of disallowance during scrutiny.
Accounting treatment of AC in books
Depreciation affects financial statements, not just taxes.
At the time of purchase:
- Record the AC as a fixed asset under plant and machinery. The full cost is capitalised, not expensed.
Every year thereafter:
Pass the following entry:
- Debit: Depreciation Expense
- Credit: Accumulated Depreciation
This ensures the profit and loss account remains accurate and the balance sheet reflects the asset's current book value rather than the original purchase cost.
GST implications on AC purchase
The Goods and Services Tax (GST) treatment on an air conditioner (AC) directly affects both your tax liability and depreciation calculation under the Income Tax Act.
- If you claim Input Tax Credit (ITC) under the Central Goods and Services Tax Act, 2017, the GST component cannot be added to the asset’s cost. Depreciation must be calculated on the net value excluding GST.
- If ITC is not claimed, the GST paid forms part of the asset’s cost and depreciation can be claimed on the full invoice value, including GST.
- ITC on AC purchases is allowed only for business use. Section 17(5) blocks ITC for personal consumption or restricted uses. If the AC is partly used for business, ITC is allowed proportionately.
Common mistakes businesses make
Most depreciation errors are avoidable. Common mistakes include:
- Booking the AC as a revenue expense instead of capitalising it.
- Claiming the full 15% rate even when the asset was used for less than 180 days.
- Ignoring personal-use adjustment for home office setups.
- Depreciating the gross cost despite claiming ITC.
- Not keeping purchase invoices and asset records in order.
- Ignoring the concept of a block of assets while calculating depreciation.
Practical tips to maximise tax efficiency
Depreciation can be a useful tax planning tool when applied deliberately:
- Purchase the asset early in the financial year so it is used for more than 180 days.
- Maintain a fixed asset register with purchase dates, costs and depreciation history.
- Document business usage clearly, especially for assets that may have dual use.
- Align the depreciation schedule with broader tax planning and cash flow projections.
Conclusion
Depreciation on AC can lead to errors such as wrong classification, incorrect rate or a missed GST adjustment, which can affect both books and tax liability. When applied correctly, it reduces taxable income while keeping financial statements accurate and compliant.
Understanding asset blocks, GST treatment and applicable tax rules helps ensure compliance and reduces scrutiny. Tools like TallyPrime simplify this process by tracking fixed assets, applying correct depreciation rates and aligning everything with GST and compliance requirements, without managing multiple spreadsheets.
