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RebateSpy

Rebate calculator

Solar Rebate Calculator

The federal STC rebate plus state incentives (Solar Victoria, WA DEBS and more) stack on most quotes. Find out what you qualify for and have our team check the numbers.

Independent guidance — free to use, with no obligation.

Find out what you're eligible for Calculate My Rebate
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Coming soon

Solar rebate calculator

We're building our solar STC calculator. In the meantime, see the Victorian rebates, or find out what you're eligible for and our team will work it out for you.

Find out what you're eligible for See Victorian rebates

How This Works

  1. 1

    Enter a few details

    Basic info about your property and energy usage

  2. 2

    See your estimate

    Get rebate ranges plus eligibility notes

  3. 3

    Choose next step

    Find out what you're eligible for, or talk to our team

Why Trust Rebate Spy?

Independent guidance you can count on

Plain English explanations

We break down complex rebate rules into simple terms you can understand.

Red flags flagged

We highlight potential issues in quotes before you sign anything.

Free to use

Our calculators and guides are free, with no obligation to go ahead.

Vetted partners only

We only work with accredited retailers who meet our vetting standards.

See our standards

Avoid These Common Traps

See how Rebate Spy helps you sidestep costly mistakes

System size mismatch

Overpay for capacity you don't need or undersize

We calculate the right size for you

STC miscalculations

Lower rebate than you expected

We verify the rebate math

Postcode eligibility

Wrong assumptions about your zone

We check your specific area

Panel quality shortcuts

Poor performance and shorter lifespan

We vet equipment standards

Stacking confusion

Miss out on state rebates you actually qualify for

We check federal + state eligibility together

Instant Estimate Includes

  • Rebate range for your situation
  • Eligibility confirmation
  • State + federal stacking notes
  • Postcode-specific notes

What We Check

  • We verify SAA accreditation for all installers
  • We check warranty terms and exclusions
  • We track current rebate rates and program changes
  • We compare quote line items for hidden costs
  • We track installer complaint history

Want This Handled End-to-End?

If you'd rather skip the research and get straight to installation, our team can take care of it with a vetted installer who will handle everything.

  • We confirm your details and requirements
  • We put together your options with a vetted installer in your area
  • The installer handles all paperwork and installation
  • You get the rebate applied directly to your price
Find out what you're eligible for

Frequently Asked Questions

What affects my solar rebate amount?
Your rebate is primarily determined by system size (kW), your zone (based on postcode), and the current STC price. Larger systems in sunnier zones receive more STCs, which translates to a bigger rebate.
Does my postcode matter for rebates?
Yes, significantly. Australia is divided into zones based on solar irradiance. Postcodes in Zone 1 (highest sun) receive more STCs per kW than Zone 4 (lowest sun).
What if I already have quotes?
Great! We can check the rebate calculations in your quotes. Many quotes contain errors or don't maximize your rebate. We'll help you spot discrepancies.
What's the difference between STCs and state rebates?
STCs (Small-scale Technology Certificates) are a federal incentive available nationwide. Some states offer additional rebates on top. Our rebate pages show both.

Choose Your Next Step

Find out what you're eligible for Read the rebate basics

No pressure. We'll explain your options clearly.