Effective life is the period of time the ATO considers an asset will be useful for producing income. It is the number that drives how quickly you can depreciate an item in your rental property. A shorter effective life means larger annual deductions. A longer effective life means smaller deductions spread over more years.
The ATO publishes a comprehensive list of effective lives for thousands of different assets, from air conditioners (10 years) to blinds (10 years) to smoke alarms (6 years). These are the default rates most investors use.
ATO Determination vs Self-Assessment
You have two options. You can use the ATO's published effective life for each asset, which is what most property investors do. Alternatively, you can self-assess the effective life based on how you actually use the asset, but you need to be able to justify your estimate if the ATO asks.
For rental properties, the ATO-determined effective life is the standard approach. Your quantity surveyor will use these rates when preparing your depreciation schedule.
Examples of Common Effective Lives
Here are some typical effective lives for items commonly found in rental properties:
- Carpet: 10 years
- Split-system air conditioner: 10 years
- Dishwasher: 10 years
- Electric oven: 12 years
- Hot water system: 12 years
- Blinds and curtains: 10 years
- Smoke alarm: 6 years
- Vinyl flooring: 10 years
These are the ATO's standard determinations. The actual deduction you claim each year depends on the effective life combined with the depreciation method you choose (diminishing value or prime cost).
Why It Matters for Landlords
Understanding effective life helps you estimate how much depreciation you can claim on items in your property. When you replace an appliance or install new flooring, the effective life determines how quickly you can write off the cost. Items with shorter effective lives give you bigger annual deductions. These deductions form part of your overall rental property tax deductions.
propkt records the purchase cost and date for items you add to your property, making it easy to keep track of what is being depreciated and when replacements are due. Try the depreciation calculator to estimate deductions for specific assets.