Skip to content
Tenth Street AdvisoryTogether, we make progress
All insights
TaxGrowth and advisory

R&D tax relief under the merged scheme: what it is worth, and how to claim

Since April 2024, most companies claim research and development relief through a single scheme. Loss-making, research-intensive companies get more. A clear guide to both.

Guide2 min readUpdated Share

R&D relief rewards companies that try to resolve scientific or technological uncertainty: building something that a competent professional could not readily work out how to do. Writing ordinary software, or adapting a product in a known way, usually does not qualify. Solving a real technical problem, whether or not it succeeds, often does.

The merged scheme

For accounting periods beginning on or after 1 April 2024, the R&D expenditure credit is 20% of qualifying spending. The credit is taxable, so a company paying corporation tax at 25% keeps about 15p for each pound of qualifying cost. Payable credits are capped at £20,000 plus 300% of the company’s PAYE and National Insurance bill.

Enhanced support for R&D-intensive companies

A loss-making SME whose relevant R&D spending is at least 30% of its total spending can claim enhanced R&D intensive support instead. It deducts an extra 86% of qualifying costs, 186% in total, and can surrender losses for a payable credit worth up to 14.5% of the surrendered loss.

Which route

Merged scheme
  • Any size of company
  • Credit of 20% of qualifying costs
  • Credit is taxable
  • Payable credit subject to a PAYE cap
Enhanced support
  • Loss-making SMEs only
  • R&D at least 30% of total spending
  • Extra 86% deduction
  • Payable credit up to 14.5% of losses

Claiming well

  • Keep a project log as you go: the problem, the uncertainty, what you tried.
  • Track staff time on R&D monthly, not from memory at the year end.
  • Check whether you must notify HMRC in advance: the Claim Notification Form is removed from 1 April 2027.
  • Expect questions: HMRC reviews many claims, and good records make them short.

This insight is general information, not advice for your circumstances. Talk to us before acting on it.

Talk to our team

Want to know what this means for you? Book a call with the people who would look after you.