Tax Return Deadline Uk 2024. For example, if your company’s accounting period ends on 31st march 2023, the deadline for filing your corporation tax return would be 31st march 2024. Balancing payment for tax year ended 5 april 2024 must also be made, and the first payment on account for tax year ended 5 april 2025.

Keep yourself up to date so you don’t miss any deadlines. The corporation tax return deadline for most uk businesses is 12 months after the end of the accounting period it covers.