HMRC Employment Manual paragrah 31835 says“The tests that apply to travel expense relate to the nature of the expense and not to the amount.” It goes on to say: “You should not refuse a deduction for first class rail travel, if that has been incurred, on the basis that the same journey could have been made more cheaply in standard class”. As long as the travel and hotel costs were incurred wholly and exclusive for your business the full cost is tax deductible.
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