Section 397 | Basic interest allowance calculated using fixed ratio method
From legislation.gov.uk
(1)For the purposes of section 396, the basic interest allowance of a worldwide group for a period of account of the group, calculated using the fixed ratio method, is the lower of the following amounts—
(a)30% of the aggregate tax-EBITDA of the group for the period;
(b)the fixed ratio debt cap of the group for the period.
(2)See—
section 400 for the meaning of “fixed ratio debt cap”;
section 405 for the meaning of “aggregate tax-EBITDA”.