Section 26A | Section 26: requirement for 3-year period of non-residence F1
From legislation.gov.uk
(1)An employee meets the requirement of this section for a tax year if the employee was—
(a)non-UK resident for the previous 3 tax years, or
(b)UK resident for the previous tax year but non-UK resident for the 3 tax years before that, or
(c)UK resident for the previous 2 tax years but non-UK resident for the 3 tax years before that, or
(d)non-UK resident for the previous tax year, UK resident for the tax year before that and non-UK resident for the 3 tax years before that.
(2)The residence status of the employee before the 3 years of non-UK residence is not relevant for these purposes.