Peter Jelfs

Head of R&D Tax Incentives

Gateley Capitus

  • Birmingham
  • t: 0121 212 7929
  • m: 07522 229 605


Peter has many years’ experience in providing R&D tax incentive advice to companies. He joined Gateley Capitus from EY, and previously worked at Mazars, sitting on HMRC’s R&D consultative committee. He has also worked as an R&D specialist in HMRC’s large business team where he undertook enquiry work, and drafted some of the nexus-updated patent box guidance.

Peter’s range of experience, including time spent working for HMRC, makes him well-placed to deliver cost savings to companies of all sizes and sectors by maximising claims of R&D tax incentives available to them.


  1. Preparing and agreeing with HMRC a significant R&D tax credit claim for a UK group in the defence sector.
  2. Negotiating and concluding an HMRC enquiry into a complex software claim for a start-up company, obtaining a valuable cash payment.
  3. Preparing and agreeing a patent box election for a company in the food packaging sector leading to a significant tax saving.

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