“A distinction must be drawn between living expenses and business expenses. In order to decide into which category to put the cost of travelling, you must look to see what is the base from which the trade, profession, or occupation is carried on. In the case of a tradesman, the base of his trading operation is his shop. In the case of a barrister, it is his chambers. Once he gets to his chambers, the cost of travelling to the various courts is incurred wholly and exclusively for the purposes of his profession. But it is different with the cost of travelling from his home to his chambers and back. That is incurred because he lives at a distance from his base. It is incurred for the purposes of his living there and not for the purposes of his profession, or at any rate not wholly or exclusively; and this is so, whether he has a choice in the matter or not.”
“Mr. Mason had to have somewhere to sleep. He could very well have slept at his Kensington home. That, of course, would have entailed that he would not have had so much time to give to the practice. But when he was sleeping in his flat above the practice he was having a good night’s sleep, which was essential to him whether, the following day, he was going to work or play or to do a bit of one and a bit of the other. That being so, it seems to me that it is quite impossible to say that any money expended on redecorating or running the flat was “wholly and exclusively laid out or expended for the purposes of the profession”