Claiming depreciation on a home office is a legitimate way to reduce your taxable income in Australia. Under Division 40 of ITAA 1997, assets such as computers, desks, and office chairs can be depreciated over their effective life. For structural improvements, you may claim under Division 43, provided these improvements were made post-1987.
A common misconception is that you can only claim depreciation if the home office is used exclusively for business purposes. While exclusive use can simplify the calculation, you can still claim if the office is used primarily for business. It's crucial to keep detailed records of the asset's purchase date, cost, and business use percentage.
To see how this plays out, consider a home office in a Melbourne property purchased in 2015. The office contains a computer (valued at $2,000), office desk ($1,000), and chair ($500). Using the ATO's effective life guidelines, you depreciate the computer over 4 years, the desk over 10 years, and the chair over 5 years. Assuming a 70% business use, the first-year depreciation claim might be $1,050. At a 37% marginal tax rate, this reduces your tax bill by $388.50.
In our experience reviewing thousands of properties across Australia, many business owners overlook the opportunity to claim depreciation on home office assets. Often, they underestimate the value of older assets, miss out on claiming structural improvements, or fail to apportion correctly for mixed-use spaces. Another frequent oversight is not updating claims when assets are replaced or upgraded.
The answer can differ depending on your situation. If your property was acquired after 9 May 2017, and the office includes second-hand assets, the ability to claim under Division 40 might be restricted unless you are a business entity. Owners of pre-1987 properties may not claim Division 43 deductions unless renovations were completed after this date. If your home office is part of an investment property, different rules apply.
It's wise to consult a Chartered Quantity Surveyor and an accountant to tailor your depreciation strategy. While the QS can identify all claimable assets, an accountant ensures compliance with tax laws and optimises your deductions.