MARCH 2025 TAX DEADLINE DATES
1 March 2025
Pay corporation tax for accounting periods ended 31 May 2024 for SMEs not liable to pay by instalments.
Review HMRC car mileage fuel rates.
2 March 2025
Unpaid income tax/class 4 National Insurance liability for 2023-24 will attract an automatic 5% penalty.
7 March 2025
VAT returns and electronic payment for 31 January 2025 quarter.
14 March 2025
Quarterly corporation tax instalment for large companies depending on accounting year end.
19 March 2025
PAYE, NI, CIS and student loan liabilities for month ended 5 March 2025 if not paying electronically.
File monthly CIS return.
21 March 2025
File online monthly EC sales list – only relevant to a business based in Northern Ireland selling goods.
Supplementary intrastat declarations for February 2025 – arrivals only for a GB business, arrivals and despatch for a business in Northern Ireland.
22 March 2025
PAYE, NI and student loan liabilities to clear HMRC’s bank account.
31 March 2025
Companies House should have received accounts of private companies with 30 June 2024 year ends and public limited companies with 30 September 2024 year ends.
Reclaim tax paid by a close company on a loan to a participator under CTA 2010, s 455 if loan repaid during the year ended 31 March 2021.
Corporation tax SA returns for companies with accounting periods ended 31 March 2024.
Claims for VAT partial exemption special method if to be backdated to 1 April 2024 (March year ends).
End of CT61 reporting period.
End of chargeable period for annual tax on enveloped dwellings.