When does the R&D Tax Incentive refund actually arrive?

Ask an R&D-heavy business owner about cash flow and you’ll usually hear the same story. The engineers are paid every fortnight. The materials, testing and contractors are paid monthly. The government’s contribution, the R&D Tax Incentive refund, arrives once a year, and never quite when you’d like it to.

Understanding exactly when it arrives, and why, is the first step to planning around it. This guide maps the process from the day you spend the money to the day the refund lands, and shows where the waiting really happens.

How does the R&D Tax Incentive refund process work?

The R&D Tax Incentive (R&DTI) is jointly administered by two bodies. The Department of Industry, Science and Resources (DISR) registers your R&D activities. The ATO processes the expenditure claim through your tax return. According to business.gov.au and the ATO, the steps are:

1. The income year ends. Your R&D activities for that year are complete (or that year’s part of them is).
2. Register your activities with DISR. This must happen within 10 months of the end of the income year. For a 30 June year end, that’s by 30 April the following year.
3. Lodge your company tax return with the R&D Tax Incentive schedule, quoting your registration number.
4. The ATO processes the return. For eligible companies, a refundable offset that exceeds tax payable produces a refund.

Under the current rules, the refundable offset is available to R&D entities with aggregated turnover below $20 million that aren’t controlled by exempt entities, calculated at the company’s tax rate plus an 18.5 percentage point premium. Companies above that threshold receive a non-refundable offset, which reduces tax rather than producing cash.

What does the timeline look like in practice?

Here’s an illustrative timeline for a company with a 30 June year end that spends evenly through the year:

When	What happens	Cash position
July (year 1)	First month of R&D spending	Money out
July–June (year 1)	Twelve months of R&D spending	Money out
30 June (year 1)	Income year ends	Refund not yet claimable
July–September (year 2)	Adviser prepares registration and claim	Waiting
By 30 April (year 2)	Latest date to register with DISR	Waiting
After registration	Company tax return lodged with R&D schedule	Waiting
After lodgement	ATO processes the return	Refund paid if no issues

Notice the gap for July’s spending. If the company registers and lodges promptly, say in the September or October after year end, money spent in July of year 1 may come back roughly 15 months later. If registration is left until the April deadline, that stretches much further.

The calendar isn’t the only driver. Your adviser’s workload, your own record-keeping and your tax agent’s lodgement schedule all shape the real timeline.

Where do R&D refunds get delayed?

Most delays fall into a handful of categories:

• Late registration. Using the full 10-month window pushes everything else back.
• Late lodgement of the tax return. Registration alone doesn’t produce a refund; the return has to be lodged too.
• Records that aren’t ready. Timesheets, project notes and invoices that need reconstructing slow the adviser down.
• ATO review. The ATO may ask questions about the claim or related lodgements before paying.
• Other lodgements outstanding. Overdue BAS or other returns can hold things up.

And one issue can shrink the refund rather than delay it: offsetting. The ATO generally uses credits to pay tax debts on your other accounts, including some debts that were on hold. If your company has an outstanding BAS or other tax debt, part of the refund may never reach your bank account. The ATO’s offsetting page explains how it works and the exceptions, such as debts under a compliant payment arrangement.

How can you bring the refund forward?

You can’t change the ATO’s processing, but you can control almost everything before it:

1. Keep contemporaneous records through the year: project plans, hypotheses, test results, timesheets. Claims prepared from good records move faster.
2. Engage your R&D adviser early, ideally before year end, so they can start as soon as the books close.
3. Close your books quickly after 30 June.
4. Register early in the 10-month window, not at the end.
5. Lodge the tax return promptly after registration.
6. Clear or arrange any tax debts so the refund isn’t offset unexpectedly.
7. Respond fast to any questions from DISR or the ATO.

A company that does all of these can realistically shorten the wait by months compared with one that leaves registration until April.

Planning a year of R&D spend around a refund that lands next year? It’s worth talking through how to fund the gap before the cash gets tight rather than after.

What changes are coming to the R&D Tax Incentive?

In the 2026–27 Budget, announced on 12 May 2026, the Government proposed a set of changes from 1 July 2028. According to the ATO, they include:

• Lifting the turnover threshold for the refundable offset from $20 million to $50 million.
• Restricting access to the refundable offset to firms in their first 10 years of operation.
• Raising the minimum annual expenditure from $20,000 to $50,000.
• Removing eligibility for supporting activities, while raising core activity offset rates by 4.5 percentage points.
• Lowering the intensity premium threshold from 2% to 1.5%, and raising the maximum expenditure threshold.

The ATO notes the measure is not yet law, and that the existing rules continue until the changes pass and the start date arrives. If your company is more than ten years old and relies on the refundable offset, it’s worth asking your adviser now how the proposed changes could affect your planning from the 2028–29 year onwards.

How do you plan cash flow around the refund?

Treat the refund like a large debtor with long payment terms. A simple approach:

• Estimate the refund conservatively, using your adviser’s figure less a margin.
• Map your R&D spending month by month against the date you realistically expect the refund.
• Identify the low point: the month your cash balance is lowest before the refund arrives.
• Decide how to fund the low point: trading surpluses, investor funds, a grant, or short-term finance.
• Check your ATO position so offsetting doesn’t catch you out.

If you’re also receiving or applying for a grant, remember that grant payments often follow milestones rather than lead them. Our page on bridging a grant funding gap explains how those payments are typically triggered.

Can you borrow against an R&D refund?

Yes, in the sense that the refund can be the planned exit for a short-term loan. Some specialist lenders advance funds against the refund entitlement itself. Our approach is different: we arrange bridges secured over property from $20k to $5m, or unsecured facilities for trading businesses typically between $5k and $500k, with the refund as the source of repayment. That can suit companies that need more than an R&D-only advance would provide, or that want one facility for R&D and other working capital.

What a lender will look at:

• Your registration status, or where it’s up to.
• Your adviser’s estimate and how it was calculated.
• Previous years’ claims and how they were processed.
• Any tax debts that could be offset.
• The security or trading history behind the facility.

Our R&D Tax Incentive advance page covers this in detail, and the bridging calculator lets you model the refund as the exit, including a buffer for delays.

An illustrative example

A medical device company with a 30 June year end expects a refundable offset of about $520k for the year just ended. Its adviser can register the activities in October and the tax agent will lodge the return in November. The company’s next production batch, needed for a hospital trial, has to be paid for in September.

Rather than delay the trial, the directors take a bridge of $350k, around two-thirds of the estimated refund, secured over a commercial unit they own. They set a term of nine months to allow for ATO questions, confirm their BAS accounts are clear so the refund won’t be offset, and plan to repay the bridge in full when the refund arrives. (Illustrative scenario.)

What should you do this month?

• Put the registration deadline for your current income year in the calendar, then set an earlier target date.
• Ask your adviser what records they need and when.
• Check your ATO accounts for any debts that could be offset.
• Map your cash flow to the refund date and find the low point.
• If there’s a gap you can’t cover from trading, look at the options early. The exit strength check will show how a lender would see your refund as an exit.

Keep the work going while the refund works its way through

Innovation shouldn’t stop because the refund is running on the government’s calendar. If you’re looking at a gap between your R&D spend and your refund, tell us about it. The enquiry takes about 60 seconds and there’s no credit check when you first enquire. Your details stay with one team instead of being handed around a list of lenders, and a real person with experience of R&D gaps will call you back.

When you fill in the form, please include your estimated refund, the income year it relates to, and any tax debts you know about. Accurate answers mean we can suggest the right structure on the first call.

See if you can bridge to your R&D refund →