DATES AND DEADLINES Accountancy, tax and financial services UK TAX YEAR CALENDAR 2021-2022 Below are the comprehensive list of important dates and deadlines in the UK accounting calendar for 2021/2022. Tax payers should keep these dates in mind to set aside enough days for preparation before submission, and to avoid penalties. January 2021 1st January Due date for payment of Corporation Tax for period ended 31st March 2020 7th January Deadline for VAT Returns and payments of Accounting Quarter period ending 30th November 2020 14th January Income Tax due date for CT61 period to 31st December 2020 19th January Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC 22nd January Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC 31st January Deadline for filing Self Assessment Tax Returns for tax year ended 5th April 2020 and 2019/2020 Capital Gains Tax Balancing payment of tax due for 2019-2020 and first Payment on Account for Income Tax for 2020/2021 February 2021