Depreciation rates play a key role in how tenants and landlords claim deductions on fit-outs in commercial properties.
Let’s say you’re a tenant who has just invested in a new fit-out for your leased property. You’ve installed office partitioning, desks, and other fixtures to create an ideal workspace. On the other side of the coin, you’re a landlord who has just welcomed a tenant with a brand-new fit-out.
In both scenarios, the question arises: who claims the depreciation, and at what rate?
What happens when a fit-out is left behind, and how do depreciation rules apply when landlords install new assets?
This guide breaks down how fit-out depreciation rates work in Australia, including which methods apply and how they affect both tenants and property owners.
What is a Construction Fit-Out?
A construction fit-out refers to the installation of non-structural elements within a property to make the space functional and suitable for its intended use. This can include lighting, flooring, partition walls, air conditioning units, cabinetry, and other fixtures.
Fit-outs are common in commercial leases, where tenants often customise the space to suit their operations, or landlords invest in upgrades to attract or retain tenants. Fit-outs
How Depreciation Applies to Construction Fit-Outs
Depreciation is the reduction in value of an asset over time due to wear and tear, ageing, or becoming outdated.
In the context of construction fit-outs, depreciation applies to the various assets installed within the property. These assets lose value year by year, and the Australian Taxation Office (ATO) allows landlords and tenants to claim this loss in value as a tax deduction.
Capital Works vs. Plant & Equipment in Fit-Outs
When it comes to claiming tax depreciation on the construction costs for a fit-out, there are two main categories under Australian tax law:
- Capital Works (Division 43)
- Plant and Equipment (Division 40)
1. Capital Works Deductions (Division 43)
These relate to the building structure and permanently affixed improvements. In a fit-out context, this could include:
- Built-in cabinetry
- Fixed partition walls
- Structural flooring
- Ceilings and tiling
- Some fixed electrical wiring and plumbing
Capital works deductions are generally claimed at a flat rate of 2.5% per year over 40 years, provided the work was completed after 15 September 1987.
2. Plant and Equipment Deductions (Division 40)
These apply to removable or mechanical assets within the fit-out, such as:
- Air conditioning units
- Light fittings
- Blinds and curtains
- Office furniture
- Security systems
These assets are depreciated at rates determined by their effective life, using either the diminishing value method or the prime cost method.
Determining Depreciation Rates Using Diminishing Value vs Prime Cost Methods
Each depreciation method determines how much you can claim each year and impacts your deductions over time.
Diminishing Value Method
The diminishing value method applies a higher depreciation rate in the earlier years of an asset’s effective life, gradually decreasing over time. It’s commonly used by investors who want to maximise their deductions sooner, which can help improve short-term cash flow.
Formula:
Depreciation = Base Value × (Days held ÷ 365) × Depreciation rate
This method assumes the asset’s value drops more quickly in its early years, which often reflects how assets are actually used.
Prime Cost Method
The prime cost method spreads the depreciation evenly over the asset’s effective life. Each year, you claim the same amount as a deduction, based on the asset’s original cost. This method is typically preferred by those looking for consistent, predictable deductions over time.
Formula:
Depreciation = (Asset cost ÷ Effective life) × (Days held ÷ 365)
Example Comparing Depreciation Methods
To illustrate how each depreciation method works in practice, let’s look at a fit-out asset example using the following details:
- Asset Cost: $5,000
- Effective Life: 10 years (as per ATO guidelines)
- Date of Purchase: 1 July 2024
- Days held in first year: 365
- Depreciation starts in 2024–25 financial year
1. Diminishing Value Method
ATO diminishing value rate for 10-year life: 20%
Formula:
Depreciation = Base Value × (Days held ÷ 365) × Depreciation rate
Year 1 (2024–25):
$5,000 × (365 ÷ 365) × 20% = $1,000
Year 2 (2025–26):
New base value = $5,000 – $1,000 = $4,000
$4,000 × 20% = $800
You continue this calculation each year, reducing the base value annually.
2. Prime Cost Method
Formula:
Depreciation = (Asset cost ÷ Effective life) × (Days held ÷ 365)
Year 1 (2024–25):
($5,000 ÷ 10) × (365 ÷ 365) = $500
Year 2 (2025–26):
The amount remains $500 each year for 10 years.
Summary:
| Year | Diminishing Value | Prime Cost |
| 1 | $1,000 | $500 |
| 2 | $800 | $500 |
| 3 | $640 | $500 |
Which Method Gives You The Best Depreciation Rates?
The “best” depreciation method depends on your financial goals.
If you’re looking to maximise your deductions in the early years of owning an asset, the diminishing value method typically offers higher upfront depreciation rates, which can improve short-term cash flow.
On the other hand, if you prefer consistent, predictable deductions over time, the prime cost method spreads the claim evenly across the asset’s effective life. While both are accepted by the ATO, choosing the right method can impact your tax position. so it’s worth considering your strategy or seeking professional advice.
What Role Do Quantity Surveyors Play in Determining Depreciation Rates
Quantity surveyors play an important role in helping property investors and business owners get depreciation right.
When it comes to construction fit-outs, they assess and itemise the assets installed, then allocate them correctly under Plant and Equipment or Capital Works, based on ATO guidelines. This ensures that the right depreciation rates are applied to each asset, which can make a big difference at tax time.
A professionally prepared tax depreciation schedule from a quantity surveyor helps you maximise your deductions while staying compliant with tax requirements.
Key Takeaways
- Construction fit-outs include various elements like lighting and flooring that are subject to depreciation.
- Tenants may benefit from Instant Asset Write-Offs, while landlords can depreciate or write off abandoned fit-outs.
- Depreciation rates vary between capital works (2.5% annually) and plant/equipment (based on effective life).
- Consulting experts such as Quantity Surveyors ensures accurate claims tailored to specific circumstances.
- A detailed depreciation schedule provided by a Quantity Surveyor can outline allowable claims over the asset’s effective life, leading to significant tax savings.
