"(1) A deduction from earnings this allowed for travel expenses if – (a) the employee is obliged to incur and pay them as holder of the employment, and (b) the expenses are attributable to the employee's necessary attendance at any place in the performance of the duties of the employment. (2) Subsection (1) does not apply to the expenses of ordinary commuting or travel between any two places that is for practical purposes substantially ordinary commuting."
"In this section 'ordinary commuting' means travel between – (a) the employee's home and a permanent workplace, or (b) a place that is not a workplace and a permanent workplace."
"… A place which the employee attendance in the performance of the duties of the employment – (a) for the purpose of performing a task of limited duration, or (b) for some other temporary purpose. This is subject to subsections (4) and (5)."
"A place which the employee regularly attends in the performance of the duties of the employment is treated as a permanent workplace and not a temporary workplace if – (a) it forms the base from which those duties are performed, or (b) the tasks to be carried out in the performance of the duties are allocated there."
"A place is not regarded as a temporary workplace if the employee's attendance is – (a) in the course of a period of continuous work at that place – (i) lasting more than 24 months, or (ii) comprising all or almost all of the period for which the employee is likely to hold the employment, or (b) at a time when it is reasonable to assume that it will be in the course of such a period."
"Mr Ratcliffe commenced employment with GTSi in August 1999. Since that date he has completed a number of short-term assignments within the UK at various locations. As GTSi have a number of work sites located within the UK it is necessary for our employees to travel to these sites as required."
"This shows that between4 January 2018 April 2003, although you were employed on short-term assignments, you did travel to various sites during this period. This allows a claim for travel expenses in principle. What are required details of travel and the calculation of the claim for each tax year."