It’s on a case by case basis dependent on the amount of money being spent by the business, and the profitability of the business when the work took place. The average claim size for SME’s in the UK is £43,000. Typically the relief can extend to around a 30-33% return on the investment undertaken by a business in “Research & Development”. Can be in the form of tax relief or cash and usually available within 8-12 weeks.