Chartered Accountant Timothy Quinn leads Tax & Accounting at Lawpath. 16+ years in tax advisory, specialising in startup growth and expansion. Passionate about supporting entrepreneurial clients with early-stage investment incentives, restructuring, international exit strategy planning, and more.
Many small businesses assume that making a loss automatically reduces their tax bill. In reality, tax losses are not always wasted, but they are not always immediately usable either.
This article explains how business tax losses work in Australia, with a focus on using them correctly over time. Read on to understand when and how you can apply and carry losses, as well as occasions when they may be restricted.
- A loss doesn’t automatically cut your tax bill. Using it correctly depends on your structure, your timing, and the tax rules that apply.
- Carry-forward losses reduce future taxable income. You apply the loss in a profitable year, not as an immediate refund.
- Loss carry-back works the other way. Eligible companies can apply current-year losses against tax already paid, which may generate a refund.
- Eligibility comes with conditions. Companies face ownership and business continuity tests; sole traders may be affected by the non-commercial loss rules.
Contents
- What is a business tax loss?
- What are carry-forward losses?
- Do carry-forward losses expire?
- How do carry-forward losses work for companies?
- How do carry-forward losses work for sole traders?
- How do carry-forward losses work for trusts and partnerships?
- What is loss carry-back?
- Who can use the company loss carry-back option?
- Carry-forward losses vs loss carry-back
- Common mistakes when using business tax losses
- When should you speak to an accountant?
- FAQs
- Ensuring business tax compliance this EOFY
What is a business tax loss?
A business tax loss occurs when your allowable deductions exceed your assessable income for an income year.
This is a tax concept, not just a cash flow issue. A business might have cash in the bank but still incur a tax loss due to deductible expenses such as depreciation or prior costs.
Example: A small business earns $50,000 in income but has $70,000 in deductible expenses. This creates a tax loss of $20,000.
Understanding this basic concept is important before exploring how losses can be used later.
What are carry-forward losses?
A tax loss occurs when an individual, business, or investment’s allowable deductions exceed its income in a particular financial year. This means that the entity has spent more on deductible expenses (such as business costs, investment property expenses, or capital asset sales) than it has earned in income.
To carry forward losses means that when you incur a tax loss in any year, you can deduct the amount of the loss from your taxable income in future years. This helps reduce the tax owed in profitable years; it is not refunded immediately.
There are two main types of tax losses that can be carried forward:
- Revenue Loss: These arise from regular business or personal income activities, such as trading, services, or wages. Revenue losses can generally be carried forward and used to offset future assessable income.
- Capital Loss: This occurs when a capital asset (such as shares or property) is sold for less than its purchase price. Capital losses can only be carried forward to offset future capital gains tax (not regular income), which is why they are not strictly categorised as tax losses by the ATO.
Example: A business makes a $20,000 loss in Year 1 and a $50,000 profit in Year 2. If eligible, it can apply the loss and only pay tax on $30,000 in Year 2.
Remember that whether your business qualifies depends on your business structure. Companies may need to satisfy ownership or business continuity tests (discussed below). Meanwhile, sole traders may be affected by non-commercial loss rules.
Do carry-forward losses expire?
Tax losses don’t usually expire simply because time has passed. You can normally carry losses forward indefinitely, but you do need to meet certain requirements.
- You need to keep accurate records of each loss year.
- Companies must consider ownership and business continuity rules.
- Changes in ownership, control, or business activity may affect eligibility.
In other words, losses don’t expire, but access to them can be restricted.
How do carry-forward losses work for companies?
Incorporated companies can carry their tax losses forward indefinitely and use them at any time. This is generally true as long as the majority ownership and control of the business remain the same from when the tax loss arises to when the deduction is claimed.
Key tests include:
- Continuity of ownership test: Checks whether the same owners maintained majority ownership and control.
- Same business test: Applies if ownership continuity fails and requires the company to carry on the same business.
- Similar business test: Allows some flexibility if the business has evolved but remains comparable.
- Business continuity test: The umbrella term to describe the same business test and the similar business test.
Here is a quick summary:
| Test | What it checks | Why it matters |
|---|---|---|
| Continuity of ownership test | Whether the same owners maintained majority ownership and control | Helps prevent loss trading |
| Same business test | Whether the company carried on the same business after the ownership change | May apply if ownership continuity fails |
| Similar business test | Whether the current business is sufficiently similar to the former business | Provides flexibility for evolving businesses |
| Business continuity test | Used to describe the same and similar business tests together | Makes it clear that only one of the same or similar business test need be applied |
The rules might be different if your business operates as a trust. In such cases, you should consult a registered tax agent to get personalised insights into your case. These rules can be complex, which is why professional advice is often needed.
How do carry-forward losses work for sole traders?
As a sole trader, you report your business income and expenses in your individual tax return. If your allowable deductions exceed your income, you generate a tax loss.
Normally, you can carry it forward indefinitely. However, unlike companies, sole traders are typically expected to apply losses as soon as they become eligible, rather than choosing when to use them.
Also, in some cases, you can offset business losses against other forms of income, such as salary or investment income, which may reduce your overall taxable income for the year.
That said, the non-commercial loss rules can restrict this. These rules may defer losses from certain business activities, particularly where the activity is not yet profitable or does not meet specific thresholds, so you won’t be able to use the loss immediately.
Keep in mind that even if you have to defer losses under these rules, they are not lost. Instead, they are carried forward and can be used in a future year when the business becomes profitable or satisfies the relevant tests.
How do carry-forward losses work for trusts and partnerships?
Individual partners generally absorb the liabilities of their business in proportion to their ownership. In the same way, each partner will receive a share of the tax loss that is proportional to their stake in the business. That tax loss will be carried forward or offset on an individual basis, according to the ATO rules.
Meanwhile, trusts are subject to specific trust loss rules. Trust losses are complex and may involve additional tests. In fact, beneficiaries can’t simply use trust losses as personal deductions. Professional accounting advice is strongly recommended in these cases.
What is loss carry-back?
Loss carry-back is a strategic alternative to traditional carry-forward methods, designed to provide immediate cash flow relief for businesses experiencing temporary downturns.
Unlike carry-forward losses, which look ahead to future profits to reduce future taxable income, the loss carry-back mechanism looks at prior tax paid to potentially generate an immediate tax offset or refund.
By allowing eligible companies to access the tax they have already paid in previous years, this measure helps inject liquidity back into the business when it is needed most.
While carry-forward losses are useful for reducing the tax burden on future growth, loss carry-back focuses on reclaiming past contributions to support current stability.
Who can use the company loss carry-back option?
Available in the past, the Federal Budget is planning to reintroduce the loss carry-back option for the 2026–27 income year.
Here is how it will work:
- Applies to companies with a turnover of up to $1 billion.
- Allows current-year losses to be applied against tax paid in the previous two income years.
- The company must have paid tax in one or both of those years.
- The company must have a current-year loss.
This measure has been announced, but you should confirm the final legislative status before relying on it.
Carry-forward losses vs loss carry-back
Understanding the difference between carry-forward losses and loss carry-back is essential for effective tax planning. While both strategies utilise tax losses to improve your financial position, they operate in different directions and serve distinct purposes, as summarised in the table below.
| Feature | Carry-forward losses | Loss carry-back |
|---|---|---|
| Direction | Uses past losses in future years | Uses current losses against prior tax |
| Main benefit | Reduces future taxable income | May create earlier refunds |
| Who it applies to | Depends on structure | Eligible companies only |
| Timing | Future income years | The previous two income years |
| Key condition | Must meet loss rules | Must meet eligibility and have prior tax paid |
| Useful when | Expecting future profits | Recently paid tax, but now making losses |
Ultimately, the choice between these two strategies depends on your company’s immediate cash flow needs versus long-term tax goals.
Common mistakes when using business tax losses
Navigating business tax losses involves complex rules, and it is easy for business owners to fall into common traps. Being aware of these pitfalls can help you manage your tax strategy more effectively and ensure you remain compliant.
Mistake 1: Assuming every loss can be used immediately
Many owners believe any loss creates an immediate tax benefit, but that isn’t always the case. Some losses are subject to specific deferral rules or business structure requirements that must be met before they can be claimed.
You should always verify the timing and eligibility requirements for your specific business structure before assuming you can reduce your current tax liability.
Mistake 2: Confusing cash losses with tax losses
It is easy to conflate your bank account balance with your taxable position, but these are distinct concepts. A business might have positive cash flow while still incurring a tax loss due to non-cash deductions like depreciation.
Understanding that tax losses are calculated based on assessable income versus allowable deductions is fundamental to accurate reporting.
Mistake 3: Ignoring ownership changes
Companies are often required to maintain continuity of ownership and control to access their historical tax losses. Significant changes in your company’s ownership structure can trigger a loss of eligibility, essentially wiping out those accumulated benefits.
If you are planning to restructure or introduce new shareholders, consult with an advisor to understand how it might impact your tax loss history.
Mistake 4: Mixing up capital and revenue losses
Tax laws clearly distinguish between capital and revenue losses, and they generally can’t be swapped to offset one another. Capital losses are typically locked into offsetting capital gains, which means you can’t use them to reduce the tax on your regular business income.
Ensure you correctly categorise each loss type to avoid errors in your annual tax filings.
Mistake 5: Assuming loss carry-back applies to every business
The loss carry-back measure is not a universal benefit available to every business structure. It is strictly limited to eligible companies that meet specific turnover and tax payment criteria set out by the ATO.
Always check the specific eligibility guidelines before planning to use this mechanism to recover past tax payments.
Mistake 6: Forgetting prior-year tax paid
The loss carry-back strategy relies entirely on having a history of tax payments to offset against. If your company didn’t pay tax in the previous two years, you won’t have a base against which to claim a refund or offset.
Verify your historical tax payment records thoroughly to see if this strategy is a viable option for your current situation.
Mistake 7: Not checking legislative status
Tax legislation is dynamic, and relying on announced measures that have not yet been passed into law can be risky.
Always confirm the legislative status of any tax measure with your accountant before incorporating it into your business strategy.
When should you speak to an accountant?
You should seek professional advice if:
- Your business structure is complex (company, trust, or partnership).
- Ownership or control has changed.
- You are planning to use large carried-forward losses.
- You are considering the loss carry-back rules.
An accountant can help ensure compliance and prevent costly mistakes.
FAQs
What are carry-forward losses?
Carry-forward losses are tax losses that can be used in future years to reduce taxable income. They are not refunded immediately and must meet eligibility rules.
Do carry-forward losses expire in Australia?
They generally do not expire, but access depends on meeting rules such as ownership and business continuity requirements.
What is loss carry-back?
Loss carry-back allows eligible companies to apply current-year losses against tax paid in previous years, potentially generating a refund.
What is the difference between carry-forward and carry-back losses?
Carry-forward reduces future taxable income, while carry-back applies losses to past tax paid. Carry-back is only available to eligible companies.
Ensuring business tax compliance this EOFY
Carrying forward tax losses can be a powerful tool for reducing future tax liabilities. Whether you’re a business or an individual with investment income, these losses can help lower the tax you owe in profitable years.
If you’re unsure how to get the most out of your tax losses, you might consider working with a registered tax agent. Tax laws can change, and the rules governing the application of losses can be difficult to understand or apply.
Having expert advice can help you follow the latest rules and make smart decisions about when and how to use your losses. Lawpath’s business tax compliance services ensure you get the most out of this opportunity, so let us help you maximise your tax savings and strengthen your business finances!
