Key tax dates and deadlines for 2018/19

Knowledge base from Boox

By Lynne Gowers on 11th May 2018

Key tax dates and deadlines for 2018/19

It is an inevitable reality that, for anyone earning a living legitimately in the UK, you have to pay tax. If you are running your own business, whether as self-employed or as a director of a limited company, or you are a shareholder or have other income you might well place a lot of trust in your accountant to ensure important HMRC tax deadlines are not missed.

However it is up to you to make sure you communicate with your accountant in a timely way to provide information and give your approval for actions, before those deadlines go whooshing past.

This handy guide gives you a rundown of the key tax dates and deadlines for 2018/19, all in one place. Bookmark this page and just have a quick check at the start of each month to see what is coming up tax and accounting-wise.

2018/19 tax dates and deadlines

April 2018

5 – end of 2017/18 tax year

6 – start of 2018/19 tax year

7 – Deadline for VAT returns and payments of Accounting Quarter period ending 28th February 2018

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

May 2018

7 – Deadline for VAT returns and payments of Accounting Quarter period ending 31st March 2018

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

31 – Provide a P60 to any employees on your payroll

June 2018

7 – Deadline for VAT returns and payments of Accounting Quarter period ending 30th April 2018

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

July 2018

5 – Deadline for PAYE Settlement Agreement (PSA), if applicable

6 – Submit P11D forms online to HMRC and provide copies to all employees

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

31 – 2nd payment on account of self-assessment tax

August 2018

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

September 2018

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

October 2018

5 – Deadline to notify chargeability of Income Tax / Capital Gains Tax for 2017/18

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

31 – Deadline for paper self-assessment tax returns for tax year ending 5th April 2018

November 2018

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

December 2018

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

January 2019

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

31 – Deadline for online filing of self-assessment tax returns for tax year ended 5th April 2018, and paying any tax due. This is also the deadline for first payment on account for 2018/19.

February 2019

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

March 2019

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

April 2019

5 – End of 2018/19 tax year

Corporation Tax

If you are running a limited company, the deadline for Corporation Tax is 9 months and one day after the end of your accounting period (large companies must pay by quarterly instalments).

Your company’s accounting period is the time covered by your Company Tax return.
After your company is registered for Corporation Tax, HMRC will inform you of the dates of your accounting period. You can find out more about accounting periods for Corporation Tax here.

Smart notifications from the Boox app

If you are a Boox client using our accounting app, it will automatically send you a notification if you are approaching one of the following events in your company’s accounting cycle:

  • Start of a new tax year – this is relevant for your personal earnings, personal mileage claims and end of year payroll return if you have employees.
  • Start of a new accounting period – once your accounting year has ended, there is 9 months for your company accounts to be submitted and for Corporation Tax to be paid.
  • New confirmation statement – companies are required to provide up-to-date information on their company via an annual accounting statement which is due on the anniversary of the incorporation of your company.
  • Start of a new VAT quarter – if your company is VAT-registered, the Boox accounting app will notify you once you have started a new VAT quarter. This is the 3-month period covered by a VAT return.

Click here for further information on smart notifications from the Boox app

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Disclaimer
Although we attempt to ensure that the Information contained in this publication is accurate and up-to-date at the date of publication it may not be comprehensive, we accept no liability for the results of any action taken on the basis of the information they contain and any implied warranties, including but not limited to the implied warranties of satisfactory quality, fitness for a particular purpose, non-infringement and accuracy are excluded to the extent that they may be excluded as a matter of law.

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