Key tax dates for UK tax year 2018

In the UK the tax year runs from 6 April to the following 5 April, so that means that a new tax year will start on 6 April 2018. Within the 2018-19 tax year there are a number of important financial dates that you may need to observe.
5 April 2018 |
Deadline for claiming your PAYE refund for the 2013-14 tax year |
5 April 2018 |
Deadline for claiming overpaid self-assessment tax for the 2013-14 tax year |
6 April 2018 |
Start of the 2018-19 tax year |
6 April 2018 |
First day that you can file your 2017-18 self assessment tax return |
31 May 2018 |
P60s for the 2017-18 tax year issued to employees |
6 July 2018 |
P11Ds for the 2017-18 tax year issued to employees |
6 July 2018 |
Deadline for payment settlement agreements for 2016-17 tax year |
31 July 2018 |
Deadline for 2nd self assessment payment on account payment for 2017-18 tax year |
5 October 2018 |
Deadline to register with HMRC if you became self-employed or received any other income for which you should submit a self assessment tax return in the 2017-18 tax year |
31 October 2018 (midnight) |
Deadline for submission of paper self assessment tax return for 2017-18 tax year |
30 December 2018 |
Deadline for online submission of tax return for 2016-17 tax year if amount to be paid is less than £3,000 and is to be collect via your PAYE tax code |
31 January 2019 (midnight) |
Deadline for online submission of tax return for 2017-18 tax year |
31 January 2019 (midnight) |
Deadline for paying tax bill for 2017-18 tax year |
6 April 2019 |
End of the 2018-19 tax year |
Handpicked Accountants aims to connect self-employed people, small business owners and company directors with only the very best accountants in their area. Our team of specialists will take the time to listen to your requirements before connecting you with your perfect accountant. As each of our featured accountancy firms and tax advisors have been thoroughly vetted, you know that you can rely on them to do a great job for a fair and reasonable price. Depending on your individual circumstances you may not have to observe all of these dates, however if you are at all confused by your tax responsibilities then we would recommend getting the help of a professional accountant or tax advisor.
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