Ask "is there a government rebate for air conditioning?" and the honest answer is: it depends entirely on which state you're standing in. The incentives are real and substantial — thousands of dollars in some cases — but they're delivered through three different state schemes with three different designs. Understanding the differences is the fastest way to work out what you're actually entitled to.
How These Schemes Actually Work (It's Not a Cheque)
None of the big three programs mail you money. They're certificate schemes: when an accredited provider installs an approved high-efficiency system, the lifetime energy savings are converted into tradable certificates (ESCs in NSW, VEECs in Victoria, energy productivity credits in SA). The provider sells those certificates to energy retailers — who are legally obliged to buy them — and passes the value back to you as an upfront discount on your invoice. No claim forms, no waiting, no rebate portal. The flip side: use a non-accredited installer and there is no discount at all, no matter how efficient the unit.
Victoria — Victorian Energy Upgrades (VEU)
The most generous scheme in the country for air conditioning, running since 2009 and now extended to 2045. The flagship activity is replacing ducted gas heating (or old electric heaters and inefficient aircon) with high-efficiency reverse cycle systems — currently worth up to $5,500 and beyond off the install price, moving with the VEEC market. Since mid-2025 a mandatory co-payment applies: $200 for small non-ducted units, $1,000 for ducted and multi-head systems, plus a required 5-year warranty on installed products. The catch: it's a replacement scheme — you need an existing functioning system being decommissioned, not a bare wall.
New South Wales — Energy Savings Scheme (ESS)
NSW's ESS is the oldest certificate scheme in the country and its air conditioner pathway is broader than Victoria's in one important way: both replacements and brand-new installations qualify. Typical upfront discounts run from $200 to over $2,600 depending on the system's efficiency, size and your climate zone — the same unit earns different certificate values in coastal Sydney versus the inland zones. The scheme rules were updated in September 2025, so any quote from before then is stale. Households and small businesses are both eligible.
South Australia — Retailer Energy Productivity Scheme (REPS)
SA takes a different approach: REPS obliges the state's large energy retailers to fund energy-saving upgrades, and high-efficiency reverse cycle aircon is a flagship activity. Rather than a single fixed amount, discounts vary by provider and household circumstances — with a deliberate equity tilt. Concession card holders and eligible priority households access the deepest discounts in the country, in some cases having 7-star systems installed for a few hundred dollars. The scheme is legislated through to 2030.
What About Queensland, WA and the Others?
Queensland's PeakSmart aircon incentive closed to new applications, leaving no broad state rebate. WA and Tasmania have no equivalent certificate scheme for aircon, and the NT runs nothing comparable. The ACT offers a different model — rebates and interest-free loans for eligible households under its home energy programs rather than a certificate scheme. This is exactly why the state on your address matters more than the unit on your wall.
Three Rules for Maximising Your Discount
1. Chase stars, not just price. The discount is calculated on efficiency, so a higher-star unit earns more certificates — often shrinking the gap to premium brands to almost nothing after rebate. 2. Only quote with accredited providers. No accreditation, no certificates, no discount — full stop. 3. Compare the after-rebate number. Providers keep different shares of the certificate value, so two quotes for the identical unit can land hundreds of dollars apart. Always compare the final out-of-pocket figure.
Want the number for your address? The checker below identifies your state's scheme and indicative range in 30 seconds.