Most nannies in ED will expect between ?12 - ?15 an hour net based on 2 children sharing (more for additional kids). This is net you pay to them each week, then you pay taxes on top. So your half would be ?6 an hour at the lower end, plus taxes would bring it up to about ?8.50 an hour in total. It's an expensive option, even sharing, but has worked very well for us. 25 days paid annual leave (plus bank holidays) is also standard.