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 Make sure you know the key dates and deadlines in the UK accounting calendar.

Accounting Calendar

April 21

1st – Due date for payment of Corporation Tax for period ended 30th June 2020

1st – 2021 Financial Year Begins

5th – 2020/2021 Tax Year Ends

6th – 2021/2022 Tax Year Begins

6th – IR35 in the private sector comes into force

14th – Due date for income tax for the CT61 period to 31 March 2021

19th – Automatic interest is charged where PAYE Tax, Student Loans, Class 1 NI, or CIS deductions are not paid by today

19th – PAYE quarterly payments are due for small employers for periods 6th January 2021 to 5th April 2021

19th – Deadline for employers’ final PAYE return to be submitted online for 2020/2021

30th – Corporation Tax Returns filed by companies with 30th April 2020 as year end

May 21

1st – Due date for payment of Corporation Tax for period ended 31st July 2020

3rd – Deadline for submitting P46 for employees whose car/fuel benefits changed during the quarter to 5th April 2021

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 31st March 2021

14th – Due date for Corporation Tax quarterly instalment for large companies with February, May, August or November Year Ends

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

31st – Corporation Tax Returns filed by companies with 31st May 2020 as year end

31st – Deadline for forms P60 for 2020/21 to be issued to employees

June 21

1st – Advisory Fuel Rates

1st – Due date for payment of Corporation Tax for period ended 31st August 2020

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 30th April 2021

14th – Due date for Corporation Tax quarterly instalment for large companies with March, June, September or December Year Ends

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

30th – Corporation Tax Returns filed by companies with 30th June 2020 as year end

July 21

1st – Due date for payment of Corporation Tax for period ended 30th September 2020

5th – Deadline for reaching PAYE Settlement Agreement for 2020/21

6th – Deadline for forms P11D and P11D(b) for 2020/21 to be submitted to HMRC

6th – Deadline for employers to report share incentives for 2020/21

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 31st May 2021

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

31st – Second Payment on Account 2020/21 due

31st – Corporation Tax Returns filed by companies with 31st July 2020 as year end

Aug 21

1st – Due date for payment of Corporation Tax for period ended 31st October 2020

3rd – Deadline for submitting P46 for employees whose car/fuel benefits changed during the quarter to 5th July 2021

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 30th June 2021

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

31st – Corporation Tax Returns filed by companies with 31st August 2020 as year end

Sept 21

1st – New Advisory Fuel Rates (AFR) for company car users

1st – Due date for payment of Corporation Tax for period ended 30th November 2020

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 31st July 2021

14th – Due date for Corporation Tax quarterly instalment for large companies with year end 31st March 2022

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

30th – CT61 Quarterly Period ends

30th – Corporation Tax Returns filed by companies with 30th September 2020 as year end

Oct 21

1st – Due date for payment of Corporation Tax for period ended 31st December 2020

5th – Deadline for Self Assessment registration to notify HMRC of Income/Capital Gains Tax for 2020/2021

7th – Deadline for VAT returns and payments of Accounting Quarter period ending 31st August 2021

14th – Income Tax due date for CT61 period to 30 September 2021

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

31st – Corporation Tax Returns filed by companies with 31st October 2020 as year end

31st – Deadline for postal submission of Self Assessment Tax Returns for tax year ended 5th April 2021 to be received by HMRC

Nov 21

1st – Due date for payment of Corporation Tax for period ended 31st January 2021

2nd – Deadline for submitting P46 (Car) for quarter ending 5th October 2021

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 30th September 2021

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

30th – Corporation Tax Returns filed by companies with 30th November 2020 as year end

Dec 21

1st – New Advisory Fuel Rates (AFR) for company car users

1st – Due date for payment of Corporation Tax for period ended 28th February 2021

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 31st October 2021

14th – Due date for Corporation Tax quarterly instalment for large companies with year end 31st March 2022

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

31st – Due date to file Corporation Tax for companies with 31st December 2020 year end

31st – Due date to file company accounts with Companies House for Limited Companies with 31st March 2020 year end

Jan 22

1st – Due date for payment of Corporation Tax for period ended 31st March 2021

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 30th November 2021

14th – Income Tax due date for CT61 period to 31st December 2021

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

31st – Deadline for filing Self Assessment Tax Returns for tax year ended 5th April 2021 and 2020/2021 Capital Gains Tax

31st – Balancing payment of tax due for 2019-2020 and first Payment on Account for Income Tax for 2021/2022

31st – Due date to file Corporation Tax for companies with 31st January 2021 year end

Feb 22

1st – Due date for payment of Corporation Tax for period ended 30th April 2021

2nd – Deadline for submitting P46 (Car) for quarter ending 5th January 2022

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 31st December 2021

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

28th – Due date to file Corporation Tax for companies with 28th February 2021 year end

March 22

1st – New Advisory Fuel Rates (AFR) for company car users

1st – Due date for payment of Corporation Tax for period ended 31st May 2021

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 31st January 2022

14th – Due date for Corporation Tax quarterly instalment for large companies with year end 31st March 2022 and 31st December 2022

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

31st – Corporation Tax Returns filed by companies with 31st March 2021 as year end

April 22

1st – New Advisory Fuel Rates (AFR) for company car users

1st – Due date for payment of Corporation Tax for period ended 31st May 2021

7th – Deadline for VAT Returns and payments of Accounting Quarter period ending 31st January 2022

14th – Due date for Corporation Tax quarterly instalment for large companies with year end 31st March 2022 and 31st December 2022

19th – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC

22nd – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

31st – Corporation Tax Returns filed by companies with 31st March 2021 as year end

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