On 7 June 2023, the Irish Revenue issued eBrief No. 139/23, which provides guidance regarding the incorporation of close company surcharges into the computation of corporation tax. Accordingly, Tax and Duty Manual Part 41A-07-02 – Payment of Preliminary Corporation Tax, has been amended in paragraph 3.

The Irish Revenue clarify that if close company surcharges apply, those amounts should be included in calculating the corporation tax for the preceding accounting period when determining whether a company is a “small company” for the purposes of calculating preliminary tax.