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Unclaimed
Discovery tool, not advice. Every figure is the published rule, not a decision on your case.
Tax credits

Patent Box

Status

Open continuously

No deadline — apply whenever you are ready.

Always open
Amount
Not published

Reduced Corporation Tax rate of 10% on profits earned from patented inventions. Value depends entirely on the company's qualifying IP income and the R&D fraction; there is no cap.

Funder

HM Revenue & Customs

public · national

Deadline: Open all year — Election must be made within 2 years after the end of the accounting period in which the relevant profits and income arose.

Your odds
Not published

This funder does not publish a success rate. We rank it using the rate observed across similar programmes and label it as an estimate rather than implying we know.

Effort
moderate

Moderate — a form and supporting documents.

Who can apply

Company must be liable to Corporation Tax and make a profit from exploiting patented inventions. Certain medicinal or botanic innovation rights also qualify. Benefits restricted by the R&D fraction where patents were acquired or R&D was paid to connected parties (for elections after 30 June 2016).

How to apply

  1. Confirm the company owns or exclusively licences-in qualifying patents (UK IPO, EPO or listed EEA offices) and has undertaken qualifying development.
  2. Separate relevant IP income from other income (streaming) and work through the Patent Box calculation steps. — link
  3. Elect into the Patent Box in the computations accompanying the Company Tax Return, or separately in writing.

What you will need

Related reading: How grant deadlines actually work · R&D tax credit vs. grant: the difference that changes your claim

Apply on the funder's site

Source. https://www.gov.uk/guidance/corporation-tax-the-patent-box

"Companies must elect into the Patent Box to apply the lower rate of Corporation Tax which is 10%."

Verified on 14 August 2026

Source: www.gov.uk

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Paid, separate from Unclaimed

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