ATO depreciation rates for cathodic protection systems assets in the General industry, under Income Tax (Effective Life of Depreciating Assets) Determination 2025 (LI 2025/20).
9 assets listed.
| Asset | Effective life | Prime cost rate | Diminishing value rate | Applicable from |
|---|---|---|---|---|
| Depot and terminal storage vessels – above ground and underground | 30 years | 3.33% | 6.67% | 1 July 2025 |
| Effluent treatment system (incorporating pumps, motors and electronic circuitry) | 15 years | 6.67% | 13.33% | 1 July 2025 |
| Electric pumps | 10 years | 10.00% | 20.00% | 1 July 2025 |
| Electronic scales | 10 years | 10.00% | 20.00% | 1 July 2025 |
| Hoses | 2 years | 50.00% | 100.00% | 1 July 2025 |
| Impressed current | 20 years | 5.00% | 10.00% | 1 July 2025 |
| Loading gantries and racks (incorporating meters and metering systems) | 15 years | 6.67% | 13.33% | 1 July 2025 |
| Petroleum product storage tanks – fibreglass and steel | 20 years | 5.00% | 10.00% | 1 July 2025 |
| Sacrificial anode | 10 years | 10.00% | 20.00% | 1 July 2025 |
The effective lives shown above are determined by the Commissioner of Taxation under section 40-100 of the Income Tax Assessment Act 1997. The diminishing value rate equals 200% ÷ effective life (for assets acquired on or after 10 May 2006). The prime cost rate equals 100% ÷ effective life. You may alternatively self-assess effective life — see the ATO website for guidance.