Companies are eligible if they can no longer amend their corporation tax returns, need to pay further corporation tax or pay back overpaid tax credits for research & development (R&D) tax relief, as well as those who have simply overclaimed the relief.

The R&D Disclosure Service is open to directors, company secretaries and tax advisers. It is separate to the current contractual disclosure facility.

Once a disclosure has been made HMRC will then decide if it will be accepted or if there is additional information needed, which will take up to 15 days.