Instant Asset Write‑Off for Solar Systems: A Complete Guide for Australian Businesses
Why the Instant Asset Write‑Off Makes Now the Best Time for Businesses to Go Solar
The Instant Asset Write‑Off (IAWO) allows eligible small businesses to immediately deduct the business portion of the cost of assets, including solar panels, inverters, batteries, and monitoring systems, when they are installed and ready for use in the same financial year.
Rather than claiming the depreciation over the effective life of an asset, the write-off allows you to claim the full deduction upfront.
For the 2025-26 financial year, the rules are:
| Rule | Detail |
| Threshold | $20,000 per asset (GST exclusive) |
| Turnover Limit | Aggregated turnover under $10 million |
| Asset condition | New or second-hand |
| Timing | Must be installed and ready for use in the income year |
| Number of assets | No limit on how many assets you claim (threshold is per asset) |
For full eligibility criteria, visit the Australian Taxation Office website here.
Eligible Solar Assets
- Solar panels
- Solar inverters
- Batteries
- Monitoring systems
- Solar hot water systems
How to Claim the Instant Asset Write‑Off for a Solahart Solar System
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Get A Quote
A Solahart consultant will assess your site, energy profile, and commercial requirements, then provide a detailed proposal outlining system design, expected savings, and eligible asset components.
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Check Your Eligibility with your licensed professional and the ATO
Confirm that your business meets the Instant Asset Write‑Off criteria, including turnover thresholds, asset cost limits, and installation timing.
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Proceed with installation
Solahart will install and commission your commercial solar system to industry standards, ensuring all components are documented correctly.
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Keep all documentation and claim through your tax return
Retain invoices, commissioning certificates, and asset breakdowns. Your accountant will apply the deduction in your business tax return for the year the system was installed and ready for use.
Disclaimer:
The information provided on this website is for general informational and educational purposes only. It does not constitute financial, investment, or professional advice. Always consult a licensed professional or conduct your own due diligence before making any financial decisions.
This information is general advice only and has been prepared without taking into account your objectives, financial situation, or needs. Before acting on any information, you should consider the appropriateness of the information having regard to your own objectives, financial situation, and needs.
Ensure you confirm your eligibility for this program through the ATO or a licensed professional.
