I'm curious....my friend has just employed a nanny for one day a week, and apparently she doesn't pay her tax or NI. The nanny works 44 hours for another family who DO pay the tax and NI, so the nanny does not want to "complicate things" by splitting the tax code. Also, according to my friend, since she is paying less than the £105 per week this is under the government threshold. I'm confused as I thought you needed to do the whole nanny tax thing regardless...even if you have a nanny for a few hours a week? What's the deal with this threshold, or is she just making it up to cover up for the fact that she is in fact doing a sneaky "cash in hand" deal!