Advance assurance pilot confirmed
There have been a number of changes to how research and development tax credits are claimed in recent years. HMRC has now confirmed that a pilot of a new clearance procedure will begin later this year. What do we know so far?
Research and development (R&D) tax credits provide corporation tax relief for companies that incur expenditure undertaking qualifying activities. A number of new requirements have been introduced in recent years, including the need to notify HMRC of the intention to make a claim prior to making it. Following a consultation, HMRC has now confirmed that a new targeted advance assurance service will be piloted. Previously, a very restricted service, aimed at the smallest companies, has been available.
The service will aim to help provide confidence that a project will qualify for relief before a claim is made. The service will cover the following aspects:
- whether the project meets the definition of R&D for tax purposes
- whether overseas expenditure qualifies for relief
- which party can claim relief for contracted-out expenditure; and
- whether the company qualifies for exemption from the pay as you earn (PAYE) or National Insurance contribution cap.
There is no confirmed start date yet; the announcement in Agent Update 138 simply says it will be in Spring 2026.
Related Topics
-
Sharing salary with your partner
You’re a director with a substantial salary and your partner isn’t working right now. If you could split your salary with your partner the tax saving would make a real difference. How can you legitimately share your salary to improve the overall tax position?
-
HMRC bungles 2026/27 PAYE codes for pensioners
For some pensioners, the 2025/26 winter fuel payment should be collected via their 2026/27 PAYE code. HMRC has started to issue PAYE codes for the new tax year, but the extra charge is missing. What's going on?
-
Are you including too much income in your calculations?
Your business is partly exempt and you claim input tax on your mixed costs and general overheads by using the standard method based on turnover splits. What income should you exclude from the calculations?




This website uses both its own and third-party cookies to analyze our services and navigation on our website in order to improve its contents (analytical purposes: measure visits and sources of web traffic). The legal basis is the consent of the user, except in the case of basic cookies, which are essential to navigate this website.