The quick version
- The R&D Tax Incentive provides a tax offset, not taxable income — the cash refund from the refundable offset is generally not treated as assessable income by the ATO
- However, the R&D expenditure that generated the offset is claimed as a notional deduction, not a standard tax deduction, which changes how it flows through your return
- Clawback provisions can trigger additional assessable income in specific situations, such as receiving a government grant for the same R&D spend
- Your accountant or R&D tax advisor is the right person to confirm how this applies to your specific numbers
- Regardless of the tax treatment, the timing gap between spending on R&D and receiving the refund creates a real cash flow problem — and that’s where R&D finance can help
Disclaimer: This content is general in nature and does not constitute financial, tax, or legal advice. Rocking Horse Group is a specialist R&D finance lender, not a tax advisor. The information below reflects publicly available ATO guidance as of May 2026. Always consult your accountant or R&D advisor for guidance specific to your circumstances.
If you’re a founder or CFO preparing for your first R&D Tax Incentive claim, or reviewing your financial position ahead of EOFY, you’ve probably hit this question already: is the R&D tax refund taxable in Australia?
You’ve incurred real R&D expenditure. Your tax advisor has confirmed the activities qualify. The ATO is going to deposit money into your account. And now you need to know what happens next — because if that refund counts as assessable income, it changes your tax forecast, your cash flow model, and the conversation you’re about to have with your accountant.
Here’s the short version: for most eligible companies, the refund is not assessable income. But the full picture has a few layers worth understanding before you finalise your position.
How the R&D tax offset actually works
The R&D Tax Incentive is a tax offset, not a payment. That distinction sits at the centre of the confusion.
A tax offset directly reduces the amount of tax your company owes. It doesn’t add to your assessable income. The ATO is clear on this: R&D expenditure claimed under Division 355 of the Income Tax Assessment Act 1997 is treated as a ‘notional deduction,’ which the ATO defines as ‘a step in working out the amount of the tax offset you may be entitled to, rather than a deduction amount.’
So when your finance team asks whether the R&D tax refund is taxable in Australia, the answer starts here. The offset reduces your tax liability. It isn’t income you’ve earned, and it doesn’t belong on the revenue side of your P&L.
Two offsets, two different outcomes
Which offset applies to your company depends on your aggregated turnover, and it determines whether you receive a cash refund at all.
The refundable tax offset is available to eligible companies with an aggregated turnover under $20 million (provided they aren’t controlled by income tax-exempt entities). The offset rate is the company’s tax rate plus an 18.5% premium, producing an effective rate of 43.5% for base rate entities paying 25% company tax. If the offset exceeds your tax liability for the year, the ATO refunds the excess in cash.
This is the mechanism behind the ‘cash refund’ most founders refer to when they talk about their R&D rebate. If your company is in a tax loss position (which is common among early-stage R&D-intensive businesses), the entire offset amount may be paid out in cash because there’s no tax liability to reduce.
The non-refundable tax offset applies to companies with an aggregated turnover of $20 million or more. The offset rate uses a tiered premium based on R&D intensity: 8.5% above the company tax rate for R&D expenditure up to 2% of total expenditure, and 16.5% above for expenditure beyond that threshold. Any excess that can’t be used in the current year is carried forward to future income years. No cash refund.
If you’re planning your EOFY cash position, the distinction matters. Knowing whether your R&D tax refund is taxable in Australia is one part of the picture, but which offset you qualify for determines whether you receive cash at all.
So, is the cash refund taxable?
For companies receiving the refundable offset, the cash refund from the ATO is generally not treated as assessable income. The ATO’s own legal database confirms that the refunded component received under section 67-30 of the ITAA 1997 does not form part of the taxpayer’s assessment.
In practical terms, the cash that hits your account from the refundable R&D tax offset is not ordinary income. You don’t include it in your assessable income, and it doesn’t increase your taxable profit for the year.
For founders lodging their first claim, this is often the most important thing to confirm before EOFY. Your R&D tax refund is taxable in Australia only in very specific circumstances (covered below), not as a general rule.
But there’s a nuance that catches people off guard, and it’s worth raising with your accountant before you lodge.
The notional deduction trade-off
The R&D expenditure that generates the offset isn’t claimed as a normal tax deduction. It’s claimed as a notional deduction, which means it doesn’t reduce your taxable income in the standard way. Instead, it’s used exclusively to calculate the tax offset amount.
Why should you care? Because you can’t double-dip. If you claim expenditure as a notional deduction under the R&D provisions, you can’t also claim it as a general deduction under section 8-1 of the ITAA 1997. The offset replaces the deduction.
For a startup in a tax loss position, this may not change your outcome much in the short term. But for a growing company approaching profitability, the interaction between your R&D claims and your broader tax position is worth modelling carefully. Ask your accountant to walk through the numbers with you, particularly if you’re forecasting your first taxable year while still claiming the R&DTI.
Why the refund looks like income in your financial statements
If you’ve reviewed your company’s financial statements and noticed the R&DTI refund classified as ‘other income’ or ‘government grant income,’ you’re not imagining things. The accounting treatment and the tax treatment are two different frameworks, and the gap between them is where a lot of the confusion starts.
Under Australian accounting standards, refundable R&D tax offsets are typically accounted for as government grants under AASB 120, not as income tax under AASB 112. That means the benefit is recognised in your profit before tax, usually as other income or as a reduction of your R&D expenditure line. Either way, it sits above your tax expense in the income statement and flows through your EBIT.
For non-refundable offsets, the treatment flips. Because the offset is limited by your tax liability, it’s generally accounted for under AASB 112 and reduces your income tax expense instead.
The practical effect for founders and financial controllers preparing board packs or investor reports is that the refundable offset can inflate your reported earnings before tax. A company in a loss position might show a smaller loss (or even a profit) once the R&DTI grant income is recognised. That looks like revenue on paper, which is exactly why people ask whether their R&D tax refund is taxable in Australia when they see the number in their accounts.
It isn’t. The accounting classification under AASB 120 doesn’t change the tax treatment. For income tax purposes, the offset remains a tax offset, not assessable income. But if you’re presenting financials to investors, a board, or a potential acquirer, make sure the notes clearly explain what the line item represents. Your accountant can advise on whether to present the benefit gross (as other income) or net (as a reduction of R&D costs), and which approach best reflects your company’s circumstances.
When additional assessable income can arise
There are limited circumstances where R&D offset benefits trigger additional assessable income through what the ATO calls clawback provisions under Subdivision 355-G.
The most common scenario: your company receives a government grant or reimbursement for R&D expenditure on which you’ve already claimed the R&D tax offset. The premium component of the offset must be reversed via an addition to assessable income. Similar adjustments can apply when R&D activities produce products that are sold commercially (feedstock adjustments) or when a balancing adjustment event occurs for a depreciating asset used in R&D.
These situations don’t apply to most claimants. But if your company receives other forms of government R&D funding alongside the R&DTI, flag it with your advisor before lodging. Getting the clawback calculation wrong can create unexpected tax liabilities that land months later.
The problem that matters more than the tax question
Once your accountant has confirmed whether your R&D tax refund is taxable in Australia (and for most eligible companies, the answer is that it isn’t), you’re left with a more pressing issue: timing.
R&D spending happens continuously. Salaries land every fortnight, contractor invoices arrive monthly, and cloud infrastructure bills don’t pause for the end of the financial year. But the R&DTI refund arrives as a single lump sum from the ATO, well after year-end, once your claim is lodged and the return is processed. That gap can stretch past 12 months.
For a startup burning through cash on development, or a scaleup trying to maintain hiring momentum through the second half of the year, that wait creates real pressure. It’s not a tax problem. It’s a cash flow problem. And it’s the reason R&D finance exists.
How R&D finance bridges the gap
Rocking Horse Group is a lender, not a tax advisor. We don’t assess R&DTI eligibility, prepare claims, or provide tax advice. The comfort letter required before accessing R&D finance comes from your R&D tax consultant, not from us.
What we do is straightforward: we lend against your year-to-date eligible R&D expenditure, confirmed by your advisor, so you can access capital you’ve already earned without waiting for the ATO to process your return.
Funding ranges from $50,000 to $10 million, calculated at up to 80% of your expected R&DTI rebate based on spend to date. There are no monthly repayments — the loan settles automatically when the ATO pays your refund. The structure is entirely non-dilutive, with no equity, no personal guarantees, and no restrictions on how you use the funds. Whether you reinvest in R&D, bring forward a hire, or cover operational costs while the rebate makes its way through the system, that’s your call.
If you’re planning for EOFY and you know your R&D spend is building, asking whether the R&D tax refund is taxable in Australia is only half the conversation. The other half is: when will that refund actually arrive, and what do I do in the meantime?
What’s changing ahead
The 2026–27 Federal Budget proposed significant reforms to the R&DTI, expected to take effect from 1 July 2028 if legislated. For companies currently under the $20 million turnover threshold, the headline change is positive: the threshold for the refundable offset would increase to $50 million, meaning more mid-sized businesses could qualify for cash refunds as they grow. Offset rates for core R&D expenditure would also increase by 4.5 percentage points.
These changes are proposed, not yet legislated, and the current rules apply until at least 30 June 2028. But if your company is approaching the $20 million mark and worried about losing access to the refundable offset, the direction of travel is encouraging. And for anyone still asking whether their R&D tax refund is taxable in Australia under the new rules, the fundamental answer won’t change: the offset remains an offset, not assessable income.
Frequently asked questions
Is the R&D tax incentive refund considered assessable income?
Generally, no. The R&D tax offset is not classified as assessable income under the ITAA 1997, and the cash refund paid to eligible companies through the refundable offset is also generally not assessable. However, clawback provisions can create additional assessable income in specific circumstances, such as when a company also receives a government grant for the same R&D expenditure. Confirm the position with your accountant before lodging.
What’s the difference between a tax offset and a tax deduction?
A tax deduction reduces your taxable income before your tax liability is calculated. A tax offset reduces the amount of tax you owe after your liability is calculated. Under the R&DTI, eligible R&D expenditure is claimed as a notional deduction (used to calculate the offset amount) rather than a standard deduction. The offset then directly reduces your tax payable. This means the expenditure doesn’t hit your return the same way a normal business expense would.
Can I claim R&D expenditure as both a deduction and an offset?
No. If you claim R&D expenditure as a notional deduction under Division 355 of the ITAA 1997, you can’t also claim it as a general deduction. The R&D tax offset replaces the standard deduction for that expenditure. Your accountant can model what this means for your overall tax position, particularly if your company is approaching profitability.
Do I need to complete my R&DTI claim before accessing R&D finance?
No. Rocking Horse lends against eligible R&D expenditure your company has already incurred during the current financial year, confirmed by a comfort letter from your R&D tax consultant. You can access R&D finance before your R&DTI claim is lodged with the ATO. Funding typically arrives within two weeks of approval.
Not sure how much R&D finance your company could access? Try the R&D expenditure calculator or talk to our team about your situation.