I work f/t for the NHS. I have been offered extra work speaking at conferences for private companies. I spoke to my manager about it who suggested I do the speaking privately ( she has done the same) and take AL from my job. This is because the amount of money I will earn will be much more valuable to me than my employer. (we are talking less than £1000 a year)
So how do I do this legitimately. I have to produce an invoice and what do I do about tax etc.