You made it and filed your self-assessment tax return for 2018/19 by the 31 January 2020. However, having felt pleased with yourself, you realise to your horror that you have made a mistake and need to correct your return. Can you do this and if so, how and by when?...
The deadline for filing the self-assessment tax return for 2018/19 is 31 January 2020. This is also the date by which any outstanding tax for 2018/19 must be paid and, where payments need to be made on account, the date by which the first payment on account of the...
