Disposing of a business asset — selling a vehicle, trading in equipment, or scrapping an old machine — seems straightforward. Remove it from the asset register, record the proceeds, done. In practice, the disposal of a depreciable business asset triggers a Division 40 balancing adjustment calculation that interacts with the CGT regime in ways that catch bookkeepers and clients alike off guard. Getting it right requires understanding what a balancing adjustment is, when CGT applies, and how small business concessions might reduce or eliminate the resulting gain.
What Is a Balancing Adjustment?
Under the capital allowances rules in Division 40, depreciable assets are written down over time through deductions that reduce the asset's tax value — its adjustable value. When an asset is disposed of, the tax law requires a balancing adjustment to reconcile the proceeds with the remaining adjustable value.
The formula is straightforward:
- Termination value (proceeds received) minus adjustable value (the written-down tax value at disposal)
- If termination value > adjustable value: the excess is a balancing adjustment inclusion — assessable income
- If termination value < adjustable value: the shortfall is a balancing adjustment deduction — a tax deduction
In plain terms: if you've depreciated an asset faster than it lost real value and you sell it for more than the tax-written-down value, the difference is clawed back as assessable income. If you sell it for less, you get a deduction.
Taxable Use Percentage
The balancing adjustment calculation is adjusted for taxable use — the proportion of time the asset was used for taxable purposes. A vehicle used 70% for business and 30% personally has a 70% taxable use percentage. Both the deduction claimed during the asset's life and the balancing adjustment at disposal are calculated on that proportion.
If taxable use was not 100%, the termination value included in the balancing adjustment is reduced to reflect the taxable use fraction. This is not just a formality — it's the reason that vehicles with mixed personal use require careful record-keeping throughout their lives. The logbook percentage determines both the deductions claimed and the balancing adjustment on disposal.
The Interaction With CGT
For assets first acquired after 20 August 1991 (virtually all modern business assets), there is a potential interaction between the Division 40 balancing adjustment and the CGT provisions. The general rule is that Division 40 takes priority over CGT for amounts covered by the balancing adjustment — the adjustment covers the difference between adjustable value and termination value.
But CGT can still apply to the difference between the original cost of the asset and the termination value where the asset has appreciated beyond cost — a situation that arises when an asset is sold for more than its original purchase price. In that case, the capital gain is the proceeds minus cost base, and the Division 40 balancing adjustment covers the proceeds minus adjustable value. The two calculations occupy different territory.
For assets held by individuals or trusts for more than 12 months, the CGT 50% discount applies to any capital gain component. This is why the distinction between the balancing adjustment (taxed at full marginal rates) and the CGT gain (eligible for the discount) matters and why the disposal should be analysed in both dimensions.
Bookkeeping Entries for Asset Disposal
The journal entries for a disposal need to remove the asset from the balance sheet and record the proceeds and any gain or loss:
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Remove the asset at cost:
- Debit: Accumulated Depreciation (the full depreciation taken)
- Debit: Loss on Asset Disposal (if proceeds are below net book value) — or —
- Credit: Gain on Asset Disposal (if proceeds exceed net book value)
- Credit: Fixed Asset at Cost (the original cost)
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Record proceeds:
- Debit: Cash/Proceeds Receivable
- Credit: Gain on Asset Disposal (if not already credited above)
The bookkeeping gain or loss (based on accounting depreciation and book values) will generally differ from the tax balancing adjustment (based on Division 40 adjustable values). These differences are timing differences — they'll be reconciled in the tax return and, for companies, in the deferred tax calculation.
The bookkeeper should maintain a disposal schedule that captures the asset's original cost, accumulated accounting depreciation, net book value, proceeds, and book gain/loss — alongside the Division 40 adjustable value at disposal, the termination value, and the balancing adjustment amount. This provides everything the tax agent needs to complete the return correctly.
Small Business CGT Concessions
Where the asset is a CGT asset held by a small business (aggregated turnover below $10 million, or where the net assets test applies), the small business CGT concessions may reduce or eliminate any capital gain on disposal:
- 15-year exemption: Gains on assets held for 15+ years by a small business owner aged 55+ who is retiring are fully exempt
- 50% active asset reduction: Reduces the capital gain by 50% where the asset is an active asset used in the business
- Retirement exemption: Up to $500,000 of lifetime capital gains can be contributed to super or disregarded
- Roll-over: The gain can be deferred into the cost base of a replacement asset
These concessions are significant and can make the tax outcome on a business asset sale far more favourable than the headline numbers suggest. The bookkeeper should flag the disposal to the supervising tax agent early — ideally before settlement — so the concessions can be factored into planning.
Practical Triggers to Watch For
Asset disposals that warrant attention include: trading in a vehicle (the trade-in value is the termination value, not a separate deduction), selling equipment that has been fully depreciated (termination value equals the balancing adjustment inclusion), or scrapping assets with residual book value (creates a deduction). Each scenario requires the same analysis — the fact pattern is just different.