The loss carry back is a refundable offset that turns a company tax loss into a refund of tax paid in prior years. The 2026 Federal Budget reintroduced the measure permanently for income years starting on or after 1 July 2026, and the Bill sits before Parliament.
Corporate tax entities with aggregated global turnover under $1 billion qualify, and the offset covers revenue losses only. The refund is capped at the tax paid in the two prior years and at the franking account balance. Carrying back beats carrying forward where cash matters now, and the choice is an election made at lodgement.
What Is the Loss Carry Back Tax Offset?
The loss carry back tax offset converts a company tax loss into cash by refunding tax already paid in earlier profitable years. A company that paid tax in the prior two income years, and then records a loss, claims the offset in its tax return. The refund arrives with the assessment instead of waiting years for future profits.
Carried forward losses only deliver value once the company earns taxable income again. The loss carry back delivers value immediately, which changes the economics of a bad year, a large investment, or a cyclical downturn. Cash flow is the entire point of the measure.
When Does the Permanent Loss Carry Back Start?
The permanent loss carry back applies to income years starting on or after 1 July 2026, with the first claims made in 2026-27 tax returns. The Government announced the measure in the Federal Budget on 12 May 2026. Treasury Laws Amendment (Tax Reform No. 2) Bill 2026 sits before Parliament, and the ATO confirms the measure is not yet law.
The timing detail matters more than most coverage admits. A loss recorded in the 2025-26 year does not qualify. The first qualifying loss year is 2026-27, and that loss carries back against tax paid in the 2024-25 and 2025-26 years. Refunds start flowing when 2026-27 returns lodge from mid 2027. Companies heading toward an FY27 loss hold a full year to plan the claim, the franking position, and the dividend sequence around it.
Which Companies Qualify for the Loss Carry Back?
Corporate tax entities with aggregated annual global turnover under $1 billion qualify for the permanent loss carry back. The eligibility rules under the Bill are set out below:
- Entity type: corporate tax entities. Sole traders, partnerships, and trusts sit outside the measure entirely.
- Turnover: aggregated annual global turnover under $1 billion in the loss year, a sharp narrowing from the $5 billion COVID-era threshold.
- Loss type: revenue losses only. Capital losses stay in the capital loss system and never generate the offset.
- Prior tax: tax paid in either or both of the two previous income years, because a refund needs something to refund.
Treasury expects around 85,000 companies to benefit each year, most of them small businesses. Loss-making startups gain a separate measure from 1 July 2028, with a refundable offset capped at PAYG withholding and FBT paid on Australian employees.
How Is the Refundable Offset Calculated?
The offset equals the carried back loss multiplied by the company tax rate, capped at prior-year tax paid and the franking account balance. A worked example makes the mechanics concrete. A trading company paid $40,000 of tax in 2024-25 and $25,000 in 2025-26.
The company records a $100,000 revenue loss in 2026-27 at a 25 per cent rate. The offset equals $25,000, sitting comfortably inside the $65,000 of prior tax paid. The company receives $25,000 as a refundable offset with its 2026-27 assessment.
Two caps bind every claim. The offset never exceeds the tax paid in the two carry back years. The offset also never exceeds the franking account balance, and that second cap trips more companies than the first.
What Is the Franking Balance Trap?
Franked dividends paid during the loss year drain the franking account and shrink the maximum loss carry back refund. The offset is capped at the franking balance, because the refund hands back tax the company already distributed as credits.
A company that pays $60,000 of fully franked dividends across a difficult year strips the same value out of its franking account. A franking balance of $10,000 at the relevant time caps the offset at $10,000, regardless of the loss size or prior tax paid.
The trap has a planning answer. Dividend timing, the size of the loss, and the claim all belong in one model, not three separate conversations. Directors drawing franked dividends through a loss year spend the refund before claiming it. We sequence dividends and the loss carry back claim together, and the order of operations regularly changes the outcome by five figures.
Carry Back or Carry Forward: Which Wins?
Carrying back wins where the company needs cash now, and carrying forward wins where future profits face a higher effective tax cost. The decision factors are set out below:
- Cash position: the carry back pays a refund within months of lodgement. Forward losses wait for profits that arrive on their own schedule.
- Profit forecast: strong expected profits give forward losses a certain home. Uncertain forecasts favour banking the refund.
- Franking impact: the carry back debits the franking account. Companies planning large franked dividends soon feel that debit later.
- Continuity risk: forward losses depend on passing the ownership or business continuity tests in future years. A refund carries no such risk.
Our guide to carried forward tax losses covers the forward rules and the continuity tests in detail. The election is made in the loss-year return, and part carry back with part carry forward is available. Splitting the loss across both pathways often produces the best modelled outcome.
How Does the Loss Carry Back Interact With Other 2026 Measures?
The permanent instant asset write-off and the loss carry back combine into a direct cash pathway for investing companies. The Budget made the $20,000 instant asset write-off permanent from 1 July 2026 for small businesses using simplified depreciation.
Immediate deductions deepen or create a loss, and the carry back converts that loss into a refund of prior tax. Investment decisions that once produced stranded losses now produce cash. Our breakdown of the instant asset write-off threshold decisions covers the deduction side of that pairing.
Deduction timing shapes the loss year itself. The strategies in our guide to EOFY deduction planning for businesses now carry a second payoff. Deductions that tip a company into loss feed the carry back claim.
Companies with R&D claims add one more layer. The refundable R&D offset and the loss carry back interact through the loss and franking calculations, and the ordering deserves modelling before lodgement.
How Does the Permanent Regime Differ From the COVID Rules?
The permanent loss carry back narrows eligibility to $1 billion turnover and removes the end date that killed the COVID-era measure. The differences are set out below:
- Turnover threshold: $1 billion aggregated global turnover, down from $5 billion under the temporary rules.
- Duration: permanent, replacing a measure that applied to the 2019-20 through 2022-23 loss years and then lapsed.
- Carry back window: two prior income years under both regimes.
- Loss type and caps: revenue losses only, capped at prior tax and franking balance, unchanged from the earlier design.
Companies that used the COVID measure recognise the machinery. Companies that missed it, and many did, get a permanent second chance with the same core mechanics and a lower entry bar.
What Records Support a Loss Carry Back Claim?
A loss carry back claim rests on the loss calculation, prior-year assessments, and a reconciled franking account. The tax loss needs clean substantiation, because the refund invites review. Prior-year notices of assessment establish the tax available for refund. The franking account needs reconciliation through the loss year, including every dividend, tax payment, and refund posted to it.
Deferred tax balances also move when a loss converts to a refund instead of a future deduction. Our guide to tax effect accounting explains how recognised losses sit in company financial statements. Clean records turn the claim into a lodgement exercise rather than an audit exposure.
What Mistakes Cost Companies the Refund?
Claiming capital losses, draining the franking account, and treating the announcement as law are the mistakes that cost companies the refund. The common errors are listed below:
- Counting capital losses. The measure covers revenue losses only, and capital losses stay in their own system.
- Paying franked dividends through the loss year without modelling the cap. The refund shrinks with every credit distributed.
- Missing the election. The carry back is a choice made in the return, not an automatic entitlement.
- Acting on an announcement. The Bill sits before Parliament, and final details settle only at passage.
- Forgetting the loss year. Losses from 2025-26 and earlier stay under the carry forward rules.
Frequently Asked Questions
When are the first loss carry back refunds available?
First claims are made in 2026-27 income tax returns, lodged from mid 2027. The measure applies to income years starting on or after 1 July 2026, subject to the Bill passing.
Is the loss carry back law yet?
The measure is not yet law. Treasury Laws Amendment (Tax Reform No. 2) Bill 2026 sits before Parliament, and the ATO has confirmed the pre-enactment status.
Do trusts and sole traders get the loss carry back?
Corporate tax entities alone access the loss carry back. Trusts, partnerships, and sole traders keep using the carry forward rules for their losses.
Do capital losses qualify for the carry back?
Revenue losses alone generate the refundable offset. Capital losses offset capital gains under their own rules and never convert to a refund.
How far back does the loss carry?
A loss carries back against tax paid in either or both of the two previous income years. A 2026-27 loss reaches the 2024-25 and 2025-26 years.
What limits the refund amount?
The refund is capped at the tax paid in the carry back years and at the franking account balance. The franking cap catches companies that paid franked dividends through the loss year.
Key Takeaways: The Permanent Loss Carry Back in 2026
The permanent loss carry back turns an FY27 company loss into a refund of FY25 and FY26 tax, subject to the Bill passing. The core points are summarised below:
- Corporate tax entities under $1 billion aggregated global turnover qualify, for revenue losses only.
- The refund is capped at prior-year tax and the franking balance, and dividend timing moves the cap.
- The first qualifying loss year is 2026-27, so planning happens now and claims lodge from mid 2027.
- Carry back, carry forward, or a split of both is an election, and modelling decides the winner.
A company heading toward a loss this financial year holds real planning options for the first time in years. Book your free 30-minute strategy session with one of our directors. We model your FY27 loss position, the franking cap, and the dividend sequence before the return lodges. Blackwattle Tax helps growing Australian companies convert losses into cash flow with specialist, director-level attention.
Schedule a FREE 30-minute consultation today to discover how we can help you make strategic decisions and streamline your business operations.
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Disclaimer: We endeavour to make sure the information provided in this guidance is up to date and accurate. Please note, that the information is only intended to be a guide, with a general overview of information. This guidance is not a comprehensive document and should not be interpreted as legal advice or tax advice. The information is general in nature. You should seek the assistance of a professional opinion for any legal and tax issues related to your personal circumstances.