My parents own a small hairdressing salon (and have done for many years). They pay their staff in cash every saturday. When their staff take holiday they pay them cash in advance, so it's usually the week they've worked plus the two weeks in advance. In terms of tax this means that sometimes the employee is taxed more on the "lump sum" because of the amount, but then because they haven't worked / earned for two weeks by the time they are next paid the tax is lower than usual so it balances out. However, in terms of the NI contributions, receiving a lump sum sometimes pushes the employee over the threshold of paying contributions so they have that amount taken out of their holiday pay and it is never repaid / balanced out. This effectively means they are penalised for having that money in advance. One of the staff have questioned this and me and my parents have been trying to work out if there is any way around this. Can anyone help out here?