An R&D tax credit loan advances part of the R&D tax relief your company expects to receive, and is repaid when HMRC pays the claim. Its value depends on the claim being valid under the current rules: the merged scheme or enhanced R&D intensive support for accounting periods beginning on or after 1 April 2024. If HMRC reduces the claim, you repay the lender the difference.
A company spends money on research and development during its accounting year, files its accounts and tax return, and claims R&D tax relief. Depending on the company and the scheme, that relief comes back as a payable credit or as a reduction in corporation tax. Between spending the money and receiving the relief, the company has paid for the work itself.
An R&D tax credit loan closes that gap. A lender reads your expected claim and advances a percentage of it. Some lend once the claim has been submitted; others lend during the year against the claim being built up, with the advance growing as the qualifying spend grows. When HMRC pays, the loan is repaid from the payment, and the agreement sets out how the money reaches the lender.
The cost is a fee or interest for each month the advance is outstanding, sometimes with an arrangement fee. Because you cannot control when HMRC pays, compare offers on the cost for each month and on any minimum charge, and work out the total for a range of repayment dates.
This is lending against a tax claim, so the quality of the claim is what the lender is buying. A claim prepared carelessly, or one that HMRC challenges, puts the loan at risk along with the relief. For grant funding for the same work, see research and development grants and Innovate UK grants.
Illustrative example
A loss-making company qualifying for enhanced R&D intensive support, with £300,000 of qualifying R&D costs and a trading loss of £350,000 before the extra deduction. The advance percentage and monthly charge are assumptions for the arithmetic: each lender sets its own.
The credit must also fit under the cap of £20,000 plus 300% of the company’s pay-as-you-earn and National Insurance for the period. On the merged scheme, a profit-making company with £400,000 of qualifying costs gets a credit of £80,000; after notional tax at 25% the net value is £60,000, or £64,800 where the 19% small profits rate applies.
For accounting periods starting on or after 1 April 2023, a company must send HMRC a claim notification form if it is claiming for the first time, or if it has not made a claim in the three years before the last date of the notification period. The notification period ends six months after the end of the period of account. Miss it, and HMRC’s guidance says the claim will be invalid.
That deadline matters to a lender. A first-time claimant that has not notified in time has no claim to lend against, however good the R&D. Lenders check the notification was sent, and when, before they advance anything.
The Budget on 28 October 2026 removes the requirement. HMRC’s guidance, updated on 29 October 2026, says a claim notification form is not needed for claims made on or after 1 April 2027. The additional information form stays, and HMRC plans to reduce and simplify it from autumn 2027. Until 1 April 2027, the six-month deadline still applies to claims made before that date.
The loan is repaid from the claim, but it is your company’s debt. If HMRC opens an enquiry, reduces the claim or rejects it, you owe the lender whatever the payment does not cover, plus charges for the extra months. Lenders may also ask directors for a personal guarantee. Borrow against a claim you would be content to defend line by line.
The lender reads the claim as HMRC would. It wants to know who prepared it and how, which projects it covers and why they count as R&D for tax purposes, how the qualifying costs were worked out, and whether the claim notification and the additional information form were filed on time. It also asks how the adviser who prepared the claim is paid, and whether the fee is a share of the relief.
It checks the scheme. A loss-making company claiming enhanced R&D intensive support must show its R&D spending is at least 30% of its total spending, including connected companies; a company that falls short is on the merged scheme and gets a different, smaller payable amount. The lender also works through the cap on payable credits, because a company with a small payroll can have a large claim and a small payment.
It checks your history: earlier claims, whether any were reduced, and whether you owe HMRC money that could be set against the credit. Arrears of VAT or payroll taxes reduce what reaches the lender.
R&D tax credit loans suit a company with a sound claim, a record of claims accepted, and a need for cash before the relief arrives. A first claim, a claim built on a change of adviser, or a claim much larger than the year before will be read with more care. The funding search is for limited companies, which are the businesses that claim R&D tax relief.
It is a loan secured on the R&D tax relief a company expects to receive. A lender advances part of the expected claim, before or after it is submitted, and is repaid when HMRC pays. If HMRC pays less than expected, the company repays the difference. The cost is a fee or interest for each month the advance is outstanding.
Each lender sets its own percentage of the expected claim after reading it. The starting point is what the claim will pay: 20% of qualifying costs under the merged scheme, less notional tax, or up to 14.5% of the loss surrendered under enhanced R&D intensive support. Both are limited by the cap of £20,000 plus 300% of the company’s pay-as-you-earn and National Insurance for the period.
For claims made before 1 April 2027, yes, if it is your first claim or you have not claimed in the three years before the end of the notification period. The form must reach HMRC within six months of the end of the period of account, or the claim is invalid. HMRC says a claim notification form is not needed for claims made on or after 1 April 2027.
It is the scheme for loss-making small and medium-sized companies whose relevant R&D spending is at least 30% of total spending, for accounting periods beginning on or after 1 April 2024. The company deducts an extra 86% of qualifying costs and can surrender the resulting loss for a payable credit of up to 14.5%. Other companies use the merged scheme.
The loan stays outstanding while the enquiry runs, and charges keep building for each month it is open. If HMRC reduces the claim, you repay the lender the shortfall. Check before you sign how the agreement treats an enquiry: whether there is a maximum term, a higher rate after a set date, or a personal guarantee.
Finance is subject to status and to the lender’s terms. A personal guarantee makes you liable for the company’s debt if it does not repay, and it can be enforced against your own assets, including your home. Nothing here is a personal recommendation.
R&D grants, R&D tax relief, and how one affects the other since April 2024.
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Read more →Funding searches run on Swoop’s platform. Swoop Finance Limited is a credit broker and not a lender, and is authorised and regulated by the Financial Conduct Authority (FRN 936513). Buzz Accounting Ltd introduces businesses to Swoop and may receive a fee from Swoop when funding is arranged. Business funding is separate from the financial advice Equity & General Financial Services Limited gives through this website. Finance is subject to status, and a lender may ask a director for a personal guarantee.
If a lender asks you to guarantee the company’s borrowing, our advisers can advise on life cover for that debt.