8Where any item has been included in a return under this Schedule as a franked payment made or as franked investment income received by a company but that item should have been included in a return or claim under Schedule 16, the inspector may make any such assessments, adjustments or set-offs as may be required for securing that the resulting liabilities to tax (including interest on unpaid tax) whether of the company or of any other person are the same as they would have been if the item had been included in the right return or claim.