Patent Box
HM Revenue & Customs
What it funds
Reduces corporation tax to an effective 10% on profits attributable to patented inventions and certain other IP rights.
Who can apply
Company liable to UK corporation tax, owning or exclusively licensing qualifying patents (UK IPO, EPO and certain EEA offices) and having undertaken qualifying development.
Key criteria
- UK corporation tax payer
How to apply
Elect into the regime in the CT return within 2 years of the end of the relevant accounting period; calculate relevant IP profits using the prescribed method.
Evidence you'll need
- Patent grants or exclusive licences
- IP income streams analysis
- R&D development history
Last checked against the official source: 3 Jul 2026. Scheme parameters are set by the funder and can change — verify before applying, or let us do it for you.
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