I have just realised that I need to submit a self assessment tax return for 2023 / 2024.
i have never had to complete a self assessment before, have not been contacted by the HMRC & do not have a self assessment log in.
Is it to late to set up a self assessment log in to complete the return before the 31st January? Does anyone know what the penalty is likely to be if it is too late and I am not able to complete the assessment before the deadline?