Section 1042C — Corporation Tax Act 2009: Claiming the credit

Claiming the credit 1042C 1 To obtain an R&D expenditure credit the company must make a claim (see Part 9A of Schedule 18 to the FA 1998).

2 A company may not make the claim (“the RDEC claim”) after the end of the claim notification period unless—

a the company has made an R&D claim during the period of three years ending with the last day of the claim notification period, b the company makes a claim notification in respect of the RDEC claim within the claim notification period, or c the accounting period in respect of which the RDEC claim is made falls within the same period of account as another accounting period in respect of which the company has made an R&D claim or a claim notification.

3 For the purposes of subsection (2) (a) , ignore any R&D claim for an accounting period beginning before 1 April 2023 that is included in the company’s company tax return only by virtue of an amendment made on or after that date (see paragraph 83B(2) of Schedule 18 to FA 1998).