1st March
- Pay Corporation tax for accounting periods ended 31st May 2023 for SMEs not liable to pay by instalments
- Review HMRC car mileage fuel rates
2nd March
- Unpaid income tax/class 4 National Insurance liability for 2022/23 incur an automatic 5% penalty after today
7th March
- VAT returns and electronic payment for 31st January 2024 quarter
14th March
- Depending on accounting year end, quarterly corporation tax instalment for large companies
19th March
- PAYE, NI, CIS and student loan liabilities for month ended 5th March 2024 if not paying electronically
- File monthly CIS return
21st March
- If paying electronically PAYE, NI and student loan liabilities, to clear HMRC’s bank account
29th March
- Bank Holiday (Good Friday)
31st March
- Accounts of private companies with 30th June 2023 years ends and public limited companies with 30th September 2023 year ends to have been sent to Companies House
- Reclaim tax paid by a close company on a loan to a participator under CTA 2010, s455 if loan repaid during the year ended 31st March 2023
- Claims for VAT partial exemption special method must receive approval if to be backdated to 1st April 2023 (March year ends)
- End of chargeable period for annual tax on enveloped dwellings