I work 16 hours per week and get around £116 combined working tax credit and child tax credit (I think this is the full entitlement for a lone parent with one child working a minimum of 16 hours a week, me, not the baby...) If I was to get another job, how many more hours could I work before it would change the amount I receive? I've got it in my head that it's between 16 and 22 hours??