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HMRC internal manual

Employment Income Manual

Travel expenses: travel for necessary attendance: safeguards against abuse: journeys treated as ordinary commuting: example

An employee is a senior executive in a publishing company. He normally drives 5 miles north from his home to the office that is his permanent workplace. One day he has to visit a client to discuss proposals for a new magazine. The client’s office is 5 miles south of his home. After the meeting he drives 10 miles to his permanent workplace.

The client’s office is a temporary workplace. The journey from home to the client’s office is the same length as the employee’s ordinary commuting journey but is in a completely different direction. So it is not substantially ordinary commuting, see EIM32300. He is entitled to mileage allowance relief for that journey, see EIM31330.