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TBL Accountants Key Tax Year Dates and Deadlines 2020 – 21

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UK Tax Calendar 2020-21

Click here to view 2021-22 tax year calendar.

Find all the key UK tax dates and deadlines for 2020-21 in our calendar. We’ve designed our tax year calendar to help businesses of all sizes across Essex prosper and be in control of their finances.

All HMRC’s key tax dates for self-assessment, your deadlines for submitting VAT returns, including MTD deadlines, monthly PAYE dates and the P11D deadline for 2020/21 are here.

When does the 2020-21 tax year start?

The 2020-21 tax year will begin on 6 April 2020 and end on 5 April 2021. Each tax, or financial year, has a series of important deadlines for businesses, investors and trustees to follow, where penalties will be applied by HMRC for late payment.

2020-21 UK Tax Year Calendar by Month

April 2020

  • 1 April 2020 – 2020/21 financial year begins
    Due date for payment of Corporation Tax for period ended 30 June 2019
  • 5 April 2020 – 2019/20 tax year ends
    2019/20 deadline for pension contributions and ISA investments
  • 6 April 2020 – 2020/21 tax year begins
  • 7 April 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 29 February 2020
  • 14 April 2020 – Income tax due date for CT61 period to 31 March 2020
  • 19 April 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 April 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 30 April 2020 – ATED (Annual Tax on Enveloped Dwellings) return deadline for year 1 April 2020 to 31 March 2021

May 2020

  • 1 May 2020 – Due date for payment of Corporation Tax for period ended 31 July 2019
  • 3 May 2020 – Deadline for submitting P46 (Car) for quarter ending 5 April 2020
  • 7 May 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 March 2020
  • 19 May 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 May 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 31 May 2020 – Give a P60 to all employees on your payroll

June 2020

  • 1 June 2020 – New Advisory Fuel Rates (AFR) for company car users
    Due date for payment of Corporation Tax for period ended 31 August 2019
  • 7 June 2020 – Deadline for VAT returns and payment Accounting Quarter period ending 30 April 2020 if filed online
  • 14 June 2020 – Due date for Corporation Tax quarterly instalment for “very large” companies with year end 31 March 2021
  • 19 June 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 June 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 30 June 2020 – CT61 quarterly period ends

July 2020

  • 1 July 2020 – Due date for payment of Corporation Tax for period ended 30 September 2019
  • 5 July 2020 – Deadline for PAYE Settlement Agreement (PSA)
  • 6 July 2020 – Submit P11D forms online to HMRC, give employees a copy of the information and inform HMRC the total amount of Class 1A National Insurance owed on form P11D(b)
  • 7 July 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 May 2020
  • 14 July 2020 – Income tax due date for CT61 period to 30 June 2020
  • 19 July 2020 – Monthly deadline for postal payments of CIS, Class 1 A NICs and PAYE to HMRC
  • 22 July 2020 – Monthly deadline for electronic remittance of CIS, Class 1 A NICs and PAYE to HMRC
  • 31 July 2020 – Second Payment on Account (POA) for Income Tax for 2019-20, unless you are deferring payment due to coronavirus
    PAYE settlement agreement submission date

August 2020

  • 1 August 2020 – Due date for payment of Corporation Tax for period ended 31 October 2019
  • 2 August 2020 – Deadline for submitting P46 (Car) for quarter ending 5 July 2020
  • 7 August 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 30 June 2020
  • 19 August 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 August 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

September 2020

  • 1 September 2020 – New Advisory Fuel Rates (AFR) for company car users
    Due date for payment of Corporation Tax for period ended 30 November 2019
  • 7 September 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 July 2020
  • 14 September 2020 – Due date for Corporation Tax quarterly instalment for “very large” companies with year end 31 March 2021
  • 19 September 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 September 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 30 September 2020 – CT61 quarterly period ends
    Electronic submission of refund claims on VAT spent on supplies from other EU countries from the relevant EU country’s tax authority in 2019

October 2020

  • 1 October 2020 – Due date for payment of Corporation Tax for period ended 31 December 2019
  • 5 October 2020 – Deadline for Self Assessment registration to notify chargeability of Income Tax/Capital Gains Tax for 2019/20
  • 7 October 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 August 2020
  • 14 October 2020 – Income tax due date for CT61 period to 30 September 2020
  • 19 October 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 October 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 31 October 2020 – Deadline for postal submission of Self Assessment tax returns for tax year ended 5 April 2020 to be received by HMRC

November 2020

  • 1 November 2020 – Due date for payment of Corporation Tax for period ended 31 January 2020
  • 2 November 2020 – Deadline for submitting P46 (Car) for quarter ending 5 October 2020
  • 7 November 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 30 September 2020
  • 19 November 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 November 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

December 2020

  • 1 December 2020 – New Advisory Fuel Rates (AFR) for company car users
    Due date for payment of Corporation Tax for period ended 28 February 2020
  • 7 December 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 October 2020
  • 14 December 2020 – Due date for Corporation Tax quarterly instalment for “very large” companies with year end 31 March 2021
  • 19 December 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 December 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 30 December 2020 – Deadline for online submission of Self Assessment tax returns for tax year ended 5 April 2020
  • 31 December 2020 – Due date to file Corporation Tax for companies with 31 December 2019 year end
    Due date to file company accounts with Companies House for limited companies with 31 March 2019 year end

January 2021

  • 1 January 2021 – Due date for payment of Corporation Tax for period ended 31 March 2020
  • 7 January 2021 – Deadline for VAT returns and payments of Accounting Quarter period ending 30 November 2020
  • 14 January 2021 – Income tax due date for CT61 period to 31 December 2020
  • 19 January 2021 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 January 2021 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 31 January 2021 – Deadline for filing Self Assessment Tax Returns for tax year ended 5 April 2020 and 2019/20 Capital Gains Tax
    Balancing payment of tax due for 2019-20 and first Payment on Account for Income Tax for 2020/21

February 2021

  • 1 February 2021 – Due date for payment of Corporation Tax for period ended 30 April 2020
  • 2 February 2021 – Deadline for submitting P46 (Car) for quarter ending 5 January 2021
  • 7 February 2021 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 December 2020
  • 19 February 2021 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 February 2021 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

March 2021

  • 1 March 2021 – New Advisory Fuel Rates (AFR) for company car users
    Due date for payment of Corporation Tax for period ended 31 May 2020
    Domestic Reserve Charge for VAT on construction and building services comes into force
  • 7 March 2021 – Deadline for VAT returns and payments of Accounting Quarter period ending January 2021
  • 14 March 2021 – Due date for Corporation Tax quarterly instalment for “very large” companies with year end 31 March 2021 and year end 31 December 2021
  • 19 March 2021 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 March 2021 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 31 March 2021 – Corporation tax returns filed by companies with 31 March 2020 year end

April 2021

Important 2020/21 Dates at a Glance

Deadlines for submitting VAT returns 2020/21

Whether you pay your VAT monthly or quarterly, through MTD for eligible businesses, the deadline for submitting your return is 1 month and 7 days after the end of the VAT period. Here are the key dates for submitting VAT returns in the 2020/21 tax year:

  • 7 April 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 29 February 2020
  • 7 May 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 March 2020
  • 7 June 2020 – Deadline for VAT returns and payment Accounting Quarter period ending 30 April 2020 if filed online
  • 7 July 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 May 2020
  • 7 August 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 30 June 2020
  • 7 September 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 July 2020
  • 7 October 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 August 2020
  • 7 November 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 30 September 2020
  • 7 December 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 October 2020
  • 7 January 2021 – Deadline for VAT returns and payments of Accounting Quarter period ending 30 November 2020
  • 7 February 2021 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 December 2020
  • 7 March 2021 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 January 2021

Update as of 20 March 2020: Mr Sunak announced a VAT payment deferral to help businesses manage their finances during the COVID-19 outbreak. VAT returns are to be prepared, filed and submitted by their due dates above as usual, but payments due from 20 March 2020 and 30 June 2020 will be automatically deferred, with taxpayers given until 5 April 2021 to pay any amounts due during this period.

Read our guide on Making Tax Digital deadlines for more information.

Key PAYE dates 2020/21

Here are your important payroll dates for 2020/21, including your monthly deadlines for non-electronic and electronic payments of CIS, NICs and PAYE to HMRC, when to give your employees their P60 and submission dates for your P11D forms. Don’t forget, we can help you outsource your payroll services.

  • 19 April 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
    2019/20 year-end payroll form submission deadline
  • 22 April 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 19 May 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 May 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 31 May 2020 – Give a P60 to all employees on your payroll
  • 19 June 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 June 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 6 July 2020 – Submit P11D forms online to HMRC, give employees a copy of the information and inform HMRC the total amount of Class 1A National Insurance owed on form P11D(b)
  • 19 July 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 July 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 31 July 2020 – PAYE settlement agreement submission date
  • 19 August 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 August 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 19 September 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 September 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 19 October 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 October 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 19 November 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 November 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 19 December 2020 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 December 2020 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 19 January 2021 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 January 2021 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 19 February 2021 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 February 2021 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 19 March 2021 – Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC
  • 22 March 2021 – Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC

Corporation Tax deadlines 2020/21

Paid by all UK limited companies, Corporation Tax payments are due 9 months and 1 day after year-end, so the deadline adjusts depending on your year end. For example, for companies with a year-end of 31 December 2019, the due date for Corporation Tax payment is 1 October 2020. Here are the major Corporation Tax dates for limited companies to follow 2020/21 tax year:

  • 1 October 2020 – Due date for payment of Corporation Tax for period ended 31 December 2019
  • 14 October 2020 – Income tax due date for CT61 period to 30 September 2020
  • 31 December 2020 – Due date to file Corporation Tax for companies with 31 December 2019 year end
  • 1 January 2021 – Due date for payment of Corporation Tax for period ended 31 March 2020
  • 14 January 2021 – Income tax due date for CT61 period to 31 December 2020
  • 31 March 2021 – Corporation tax returns filed by companies with 31 March 2020 year end

Key deadlines if you’re self-employed 2020/21

Here are the major Self Assessment and other important dates for individuals and self-employed in the 2020/21 tax year:

  • 5 April 2020 – 2019/20 tax year ends. Make sure all your accounts are in order by this date and all documents are issued to employees.
  • 6 April 2020 – 2020/21 tax year begins. Keep an eye on the latest tax changes so you are on top of any legislation updates this new tax year.
  • 31 July 2020 – Second Payment on Account (POA) for Income Tax for 2019-20.
  • 5 October 2020 – Deadline for Self Assessment registration to notify chargeability of Income Tax/Capital Gains Tax for 2019/20
  • 19 October 2020 – Deadline for postal payments of CIS, Class 1 B NICs and PAYE to HMRC
  • 22 October 2020 – Deadline for electronic remittance of CIS, Class 1 B NICs and PAYE to HMRC
  • 31 October 2020 – Deadline for postal submission of Self Assessment tax returns for tax year ended 5 April 2020 to be received by HMRC
  • 30 December 2020 – Deadline for online submission of Self Assessment tax returns for tax year ended 5 April 2020
  • 31 December 2020 – Due date to file company accounts with Companies House for limited companies with 31 March 2019 year end
  • 14 January 2021 – Income tax due date for CT61 period to 31 December 2020
  • 31 January 2021 – Deadline for filing Self Assessment Tax Returns for tax year ended 5 April 2020 and 2019/20 Capital Gains Tax
    Balancing payment of tax due for 2019-20 and first Payment on Account for Income Tax for 2020/21
  • 5 April 2021 – 2020/21 tax year ends
  • 6 April 2021 – 2021/22 tax year begins

Small business deadlines 2020/21

While your deadlines could vary depending on a range of factors, here are the important tax dates that a small business will need to consider in the 2020/21 tax year:

  • 5 April 2020 – 2019/20 tax year ends. Make sure all your accounts are in order by this date and all documents are issued to employees.
  • 6 April 2020 – 2020/21 tax year begins. Keep an eye on the latest tax changes so you are on top of any legislation updates this new tax year.
  • 19 April 2020 – 2019/20 year-end payroll form submission deadline
  • 7 May 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 March 2020
  • 31 May 2020 – Give a P60 to all employees on your payroll
  • 6 July 2020 – Submit P11D forms online to HMRC, give employees a copy of the information and inform HMRC the total amount of Class 1A National Insurance owed on form P11D(b)
  • 22 July 2020 – Monthly deadline for electronic remittance of CIS, Class 1 A NICs and PAYE to HMRC
  • 31 July 2020 – Second Payment on Account (POA) for Income Tax for 2019-20
  • 7 August 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 30 June 2020
  • 7 November 2020 – Deadline for VAT returns and payments of Accounting Quarter period ending 30 September 2020
  • 31 December 2020 – Due date to file Corporation Tax for companies with 31 December 2019 year end
  • 1 January 2021 – Due date for payment of Corporation Tax for period ended 31 March 2020
  • 31 January 2021 – Deadline for filing Self Assessment Tax Returns for tax year ended 5 April 2020 and 2019/20 Capital Gains Tax
    Balancing payment of tax due for 2019-20 and first Payment on Account for Income Tax for 2020/21
  • 7 February 2021 – Deadline for VAT returns and payments of Accounting Quarter period ending 31 December 2020
  • 6 April 2021 – 2021/22 tax year begins

Important Accounting & Tax Deadlines 2020/21

We have put together a handy downloadable guide so you can access all your UK tax year deadlines at a glance, plus a guide to all the tax allowances and changes in 2020/21.

Whether you need help filing your Self Assessment tax returns, require advice, or support carrying out your business’s financial duties, please get in touch with our reliable team.

Click here to view 2021-22 tax year calendar. 

TBL Accountants are your local accountancy firm operating in Southend and across Essex. We specialise in a variety of services as personal, business, and charity accountants. Want to find out more? Get in touch with our team today.

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