I live in one city and my normal office is in the city. I am currently involved in a project in another city which takes me away there for extended periods. I have a flat in the other city which I stay in while I am working there. What constitutes business mileage? I would think travel from home to the distant site would be business mileage. However probably not the daily commute in from my flat. Is this correct, or would the total distance away from my home be business mileage?