Hi neville-kluk-co It's our understanding that the deadline for paying income tax that you owe, relating to self-assessment tax returns for last tax year. 06/04/2023 - 05/04/2024, is by midnight on the 31/05/2025. https://www.gov.uk/self-assessment-tax-returns/deadlines
Please note we're not accountants therefore we recommend that you qualify the above with an accountant or HMRC, or there maybe a suitably qualified Community member that reads this post that can confirm the above or provide alternative advice.