I run the payroll for my business using the HMRC Basic PAYE tool. After completing the week 53 submission and closing the tax year (and activating the new tax year) I noticed an error in the gross salary paid to an employee. The guidance on the HMRC website suggests I should correct this using another FPS with the same pay date, however I can see no way of doing this now that the tax year is closed (and in the new tax year it obviously won't let me select a pay date prior to the 5th April).
I would be grateful if anyone has any advice on how I should go about correcting this, or could point me in the direction of more detailed guidance which I may have missed. Thanks.