Dates and deadlines

Never miss a financial deadline again

Stay organised and compliant with our essential guide to accounting dates and deadlines.

At Calculo, we clearly outline key filing dates, payment schedules, and regulatory requirements, ensuring your business runs smoothly, remains stress-free, and never misses an important deadline.

22 December 2025

  • PAYE, NIC and CIS Payment (electronic)

    Month-end 5 December 2025.

30 December 2025

  • Self Assessment

    Payment of 2024/25 tax via PAYE coding out online return submission.

31 December 2025

  • Corporation Tax Returns

    31 December 2024 year ends.

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