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Deadline dates for March 2025

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03 March 2025
Issue: 4975 / Categories: News

1 April 2025

Payment of corporation tax liabilities for accounting periods ended 30 June 2024 for SMEs not liable to pay by instalments.

Multiple contractors to advise HMRC that they wish to be treated as a single contractor for 2025-26.

5 April 2025

2024-25 tax year end.

Pay previously unpaid class 3 National Insurance contributions for 2017-18.

6 April 2025

Start of 2025-26 tax year. Ensure payroll and other systems are updated.

7 April 2025

VAT returns and payment for 28 February 2025 quarter (electronic).

14 April 2025

Quarterly corporation tax instalment for large companies depending on accounting year end.

Forms CT61 and tax paid for the quarter ended 31 March 2025.

19 April 2025

PAYE NIC CIS and student loan liabilities for month ended 5 April 2025 if not paying electronically.

PAYE liability for quarter ended 5 April 2025 if average monthly liability is less than £1 500.

21 April 2025

File online monthly EC sales list – only relevant to a business based...

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