Hi, is the 16 hrs per week rule spread throughout the year, ie 16 hrs x 5 days x 48 weeks? So what I am really asking is if I work full time for a number of weeks can I then have a number off weeks off without the tax credits being affected? I work for an agency and the work generally is full time for a week or more, I can do this for some time but not a whole year if you see what I mean?