Deadline dates for March 2020

1 March 2020

Payment of corporation tax liabilities for accounting periods ended 31 May 2019 for small and medium-sized companies not liable to pay by instalments.
Review HMRC car mileage fuel rates.

2 March 2020

Unpaid income tax/class 4 National Insurance for 2018-19 will attract an automatic 5% penalty after today.

7 March 2020

Due date for VAT returns and payment for 31 January 2020 quarter (electronic payment).

14 March 2020

Quarterly corporation tax instalment for large companies depending on accounting year end.
EC sales list for monthly paper return.

19 March 2020

Pay PAYE, National Insurance, construction industry scheme and student loan liabilities for month ended 5 March 2020 if not paying electronically.
File monthly CIS return.

21 March 2020

File online monthly EC sales list.
Submit supplementary intrastat declarations for February 2020.

22 March 2020

PAYE, NI and student loan liabilities should have cleared HMRC’s bank account.

31 March 2020

Companies House should have received accounts of private companies with 30 June 2019 year ends and public limited companies with 30 September 2019 year ends.
Final date to 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 2016.
HMRC should have received corporation tax self-assessment returns for companies with accounting periods ended 31 March 2019.
End of CT61 reporting period.