1 April 2026 – Due date for corporation tax due for the year ended 30 June 2025.
19 April 2026 – PAYE and NIC deductions due for month ended 5 April 2026 (If you pay your tax electronically the due date is 22 April 2026).
19 April 2026 – Filing deadline for the CIS300 monthly return for the month ended 5 April 2026.
19 April 2026 – CIS tax deducted for the month ended 5 April 2026 is payable by today.
30 April 2026 – 2024-25 tax returns filed after this date will be subject to an additional £10 per day late filing penalty for a maximum of 90 days.
1 May 2026 – Due date for corporation tax due for the year ended 30 July 2025.
19 May 2026 – PAYE and NIC deductions due for month ended 5 May 2026. (If you pay your tax electronically the due date is 22 May 2026).
19 May 2026 – Filing deadline for the CIS300 monthly return for the month ended 5 May 2026.
19 May 2026 – CIS tax deducted for the month ended 5 May 2026 is payable by today.
31 May 2026 – Ensure all employees have been given their P60s for the 2025/26 tax year.
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If you are self-employed, you may be able to claim tax relief on certain business insurance costs as an allowable expense. This means the cost can be deducted when calculating your taxable profits,
Small businesses have several VAT schemes available that can simplify VAT administration and may help with cash flow. However, as a business grows or its circumstances change, it is important to
It is important to know if HMRC is holding money that belongs to you. For example, if you have paid too much tax to HMRC, you may be able to claim a tax refund (also known as a tax rebate).
If your personal details or circumstances change, you may need to tell HMRC as this could affect your tax position or entitlement to certain benefits.
You should notify HMRC if you get married or