Claims for multibillion-pound business tax incentives are more likely to be non-compliant when submitted with the assistance of specialist agents, according to an official review by HM Revenue & Customs (HMRC). An inquiry into research and development (R&D) tax credits—schemes intended to encourage innovation but undermined by fraud and error—found that behaviour among some agents was “clearly not acceptable”. In its review of incentives for business innovation, HMRC estimated that fraud and error in these...