Should I claim R&D Tax Relief or apply for a grant?

A clear decision framework for UK companies weighing R&D Tax Relief, Innovate UK grants, or both.

**Quick Answer**

In almost every case the answer is **both**. R&D Tax Relief is a statutory annual claim that every UK company doing genuine R&D should make. Grants are competitive, project-specific, and add capacity for ambitious new work that the company could not otherwise afford.

**When R&D Tax Relief alone is enough**

- Your R&D is incremental product improvement funded from revenue.
- You do not yet have the technical risk profile or partner network to win an Innovate UK competition.
- You need cash predictably, not in a competitive lump sum.

**When you should also apply for a grant**

- You have a discrete, ambitious R&D project that needs £100k–£2m of new capital.
- The project has clear technical risk and would not happen without grant support.
- You can absorb a 10–20% success rate and a 3–6-month application timeline.

**Common pitfalls**

- Double-counting grant-funded staff time in the R&D Tax Relief claim.
- Using a contingent-fee R&D boutique whose methodology HMRC distrusts.
- Treating Innovate UK as a tax-relief substitute.

**Conservative Note**

Always confirm grant-vs-relief interaction with a qualified R&D tax specialist before filing. This is editorial guidance, not tax or financial advice.