Am I right in thinking that NI is only calculated per payslip as a M1/W1 deduction unlike income tax which is calculated over the whole tax year?
If that's correct then I think I would pay less NI in a tax year when working through an Umbrella because there would be no payslips for holiday weeks and the non-holiday weeks would shift more NI into the 2% bracket than would happen over the whole year. According to my own calculations I'm owed £3K income tax at this point in the year but I've underpaid on NI by £1K. Would I have to declare the missing £1K NI as a shortfall in a personal tax return? I realise that's a basic question but I've never done one before.
I guess the same question could be asked for employer's NI.
If that's correct then I think I would pay less NI in a tax year when working through an Umbrella because there would be no payslips for holiday weeks and the non-holiday weeks would shift more NI into the 2% bracket than would happen over the whole year. According to my own calculations I'm owed £3K income tax at this point in the year but I've underpaid on NI by £1K. Would I have to declare the missing £1K NI as a shortfall in a personal tax return? I realise that's a basic question but I've never done one before.
I guess the same question could be asked for employer's NI.
Comment