Introduction Background Note
14.Finance Act 2009 introduced a package of changes to the taxation of companies on their foreign profits. One of these measures limits the interest and other finance expenses that can be deducted in computing the corporation tax payable by UK members of a worldwide group of companies, and is commonly referred to as the worldwide debt cap (WWDC).
15.The rules broadly operate by requiring UK groups to compare their UK financing costs, as calculated under the rules, with the finance costs of their worldwide group. If the UK costs exceed the worldwide costs then the excess is disallowed and the UK companies do not get any relief for the excess.