RFIG20170 | Statutory Residence Test (SRT): Automatic overseas tests: Other days that can reduce the reference period
From HM Revenue & Customs · Residence and FIG Regime Manual
When calculating the reference period the individual can also subtract the following:
days when they would have worked but were on sick leave and they could not work as a result of the illness or injury
days when they would have worked but were on annual leave or parenting leave from work (refer to RFIG20180), provided these amounts were reasonable
any non-working days embedded within a block of leave - annual, parenting or sick leave they have subtracted under either of the 2 previous bullet points
No reduction under the above may be made in respect of a disregarded day (refer to RFIG20150). So if the individual works:
for more than 3 hours in the UK , (for the purposes of calculating whether they have worked sufficient hours overseas)
on a day and then they take a half day of annual leave, they should subtract this day as a disregarded day and not as a half day of annual leave. If these types of leave, when added together, do not add up to a whole number of days across the reference period, the number of days should be rounded down to the nearest whole number.