1 January 2020
Payment of corporation tax liabilities for accounting periods ended 31 March 2019 for small and medium-sized companies not liable to pay by instalments.
7 January 2020
Due date for VAT returns and payment for 30 November 2019 quarter (electronic payment).
14 January 2020
Forms CT61 to be submitted and tax paid for the quarter ended 31 December 2019.
Quarterly corporation tax instalment for large companies depending on accounting year end.
19 January 2020
Pay PAYE, NIC, CIS and student loan liabilities for month ended 5 January 2020 if not paying electronically.
File monthly construction industry scheme return.
Payment of PAYE liability for quarter ended 5 January 2020 if average monthly liability is less than £1,500.
21 January 2020
File online monthly EC sales list.
Submit supplementary intrastat declarations for December 2019.
22 January 2020
PAYE, NIC, CIS and student loan liabilities should have cleared into HMRC bank account.
31 January 2020
Online deadline for 2018-19 personal, partnership and trust SA tax returns.
Balance of 2018-19 SA liabilities due.
Payment of first instalment of 2019-20 SA liabilities including class 2 NICs.
2017-18 SA tax returns to be amended by this date.
‘Vulnerable person election’ by trustees where the effective date is during 2017-18 (form VPE1).
Election to opt out of pre-owned assets charge if this would first arise during 2018-19 (form IHT500).
Companies House should have received accounts of private companies with 30 April 2019 year ends and public limited companies with 31 July 2019 year ends.
HMRC should have received corporation tax SA returns for companies with accounting periods ended 31 January 2019.