GST Rate explained: this guide covers what it means, who it applies to, the step-by-step process, documents required, fees, due dates and penalties in India — so you can stay compliant with confidence and avoid costly mistakes.
The GST rate on air conditioners is 18% from 22 September 2025, down from 28% plus compensation cess. Air conditioners were one of the consumer durables moved into the standard rate by GST 2.0, alongside televisions, dishwashers and cement.
From luxury slab to standard rate
An air conditioner spent most of GST's first eight years in the top slab. It was treated as a luxury durable, taxed at 28% with compensation cess layered above it. GST 2.0 removed 28% as a general rate altogether.
| Period | GST rate on air conditioner | Cess |
|---|---|---|
| Until 21 September 2025 | 28% | Applied above the slab |
| From 22 September 2025 | 18% | Wound down |
It is tempting to read GST 2.0 as "5, 18 and 40" and assume anything premium drifts to 40%. That misreads the structure. 5% and 18% are the general rates; 40% is a closed, enumerated list — pan masala, tobacco, aerated and carbonated beverages, luxury motor vehicles above specified thresholds, motorcycles above 350cc, yachts, personal aircraft and specified betting and gaming. Nothing reaches 40% by residual reasoning, so a high-tonnage or premium air conditioner is still at 18%.
Installation — the composite supply question
An air conditioner is rarely just a box. The transaction usually bundles the unit, delivery, installation, copper piping and sometimes a stabiliser, and the GST rate on air conditioner supplies depends on how that bundle is characterised.
- Naturally bundled and supplied together — a composite supply, taxed at the rate of the principal supply, which is the air conditioner itself.
- Separately contracted installation by a different supplier, or optional and separately priced — assessed on its own footing as a service.
- Embedded into a building as part of construction of immovable property — a different question again, because the credit position changes.
The practical consequence is on the invoice. Where the supply is composite, splitting the AC and the installation into two lines at two rates is not a choice available to the supplier — the composite characterisation drives a single rate.
Input tax credit
For a business buying an air conditioner, credit generally follows the ordinary rule: available where the AC is used in the course or furtherance of business, subject to the blocks in section 17(5).
The block that most often bites is construction of immovable property on own account. A free-standing or window unit installed in an office is ordinarily distinguishable from plant embedded into the building as part of its construction, and the distinction is worth documenting at the time rather than arguing later.
A supplier making exempt outward supplies cannot recover the tax at all, so the GST rate on air conditioner purchases is a straight cost. The move from 28% to 18% reduced that cost by ten points — worth revisiting in any capital budget prepared before 22 September 2025.
The GST rate on air conditioner supplies, worked through a price
Take a unit with a base price of Rs 32,000.
| At 28% + cess | At 18% | |
|---|---|---|
| Taxable value | Rs 32,000 | Rs 32,000 |
| GST | Rs 8,960 | Rs 5,760 |
| Invoice total (before cess) | Rs 40,960 | Rs 37,760 |
| Cost to a business with credit | Rs 32,000 | Rs 32,000 — unchanged |
| Cost to a consumer or an exempt supplier | Rs 40,960 | Rs 37,760 |
For an intra-State supply the 18% appears as 9% CGST plus 9% SGST; inter-State it is a single 18% IGST line. Where the sale is composite with installation, the whole consideration takes the rate of the principal supply — so the installation portion is at 18% too, not at a separate service rate.
Buying several units — the practical points
- Hotels and offices fitting out multiple rooms should confirm whether the units are being supplied with installation as a composite supply or under a separate works contract. The two produce different invoices and different credit questions.
- Annual maintenance contracts taken at the time of purchase are ordinarily a separate supply of service and follow their own rate; they do not simply inherit the GST rate on air conditioner sales.
- Old-unit exchange offers reduce the price paid but the taxable value has to be determined under the valuation rules, not simply taken as the net cash collected.
- Extended warranty sold separately is its own supply.
Supplies straddling the change
Orders placed before 22 September 2025 and delivered after it are governed by section 14, the time-of-supply rule for a change in rate of tax. It works off supply of the goods, issue of the invoice and receipt of payment, and the invoice date on its own does not settle it.
Advance bookings taken during the season before the change are the common case. Where the advance was received at the old rate and the unit delivered at the new one, section 14 decides which rate is correct, and a credit note is the usual mechanism for correcting an invoice raised on the wrong footing.
What did not change
- The CGST/SGST/IGST split — an 18% intra-State supply is 9% + 9%.
- The charging framework; this was a rate notification exercise, not an amendment to the Act.
- Return forms, due dates, e-invoicing thresholds and reverse charge lists.
- Warranty and after-sales service treatment, which follows its own analysis.
Checklist
- Confirm the current GST rate on air conditioner supplies for your HSN on cbic.gov.in before quoting.
- Characterise the bundle first — composite supply, or separately contracted installation.
- Do not split a composite supply across two rates on the invoice.
- Document the ITC position for units installed in premises, especially where construction is involved.
- For orders straddling 22 September 2025, apply the section 14 test rather than the invoice date.
- Check that MRP labelling on packaged units reflects the current rate.
This is an explanatory guide, not tax advice. Rate notifications are amended frequently — verify the current entry for your HSN on cbic.gov.in before pricing a supply.