I am a sole trader and am looking at paying someone to help me with a few aspects of my business. They will only be paid for a few hours work a week (and not every week, just when I need an extra pair of hands) and the pay will be well under the PAYE and NICs thresholds.
My question is, do HMRC need to be informed of this casual work? Also, if I were to pay someone who only works part time in another job what happens then?
Thanks in advance.