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HMRC Patent Box statistics 2021 – our commentary

HMRC has provided information on the number of companies claiming corporation tax relief within the Patent Box scheme. There is still time to make a claim, if you think you might qualify contact one of our specialist advisors.

Key points to show the value of Patent Box to innovative business in the UK

Source HMRC Patent Box 2021

Patent Box claims since the scheme began

Projected Patent Box claims 2019-20 – compared to previous year

Projected claims in the tax year 2019-20

26% were classified as ‘Large’, but these companies accounted for most of the relief claimed (92%).

Over half (52%) of the companies were in the Manufacturing sector (including Pharmaceuticals).

The number of companies claiming relief varies significantly across UK regions, with the highest number in the South East (17%) and the lowest in the North East (2%). There is also significant regional variation in the value of relief claimed, companies in London claimed the largest amount of relief (50%).

*defined as micro, small and medium by HMRC

The statistics published here for 2019-20 will be updated based on a complete set of data in the next annual release (Autumn 2022). The projections have been made based on the amount of claims that have been made so far, and the previous’ years data of the amount of claims that are usually made later on.

Regional analysis of number and value of Patent Box claims, 2019-20 projected

Based on government office region


Firms registered in South East

Number of companies claiming

Amount claimed £(m)


Average claim value

South East


Regional allocation is based on the postcode of the company’s registered address, which might not correspond to where the Patent Box activity takes place, so caution must be exercised when interpreting these figures. Figures exclude claims where region is not known. Numbers are rounded to the nearest 5 and amounts are rounded to the nearest £1m.

Industry analysis of number of Patent Box claims, 2019-20 projected


Number of companies claiming

Total value of claims (£ million)


Average claim value for



The following sectors have not been included as the figures have been suppressed to meet confidentiality requirements: Mining and Quarrying; Electricity, Gas, Steam and Air Conditioning; Accomodation and Food; Real Estate; Education; Health and Social Work; Arts, Entertainment and Recreation; Public Admin, Defence and Social Services; Households; Overseas.

HMRC are only able to provide information on the number of companies claiming under Patent Box in each sector.HMRC are not able to show total relief claimed by industry sector without violating HMRC’s disclosure rules. The industry sector accounting for the highest proportion of the total relief claimed is Financial and Insurance (35%), followed by Manufacturing (27%).

Comments from our CEO, Luke Hamm