Deadline for Sending 2017-18 Self Assessment Tax Returns is Tomorrow!

The deadline to complete a 2017 to 2018 tax return online is 11.59pm on 31 January, and last year more than 93% of customers filed their returns by the deadline.

As of last week, 3.5 million people still hadn’t filed their returns according to HMRC. If you miss it, you’ll be slapped with an initial £100 fine, then from the 1st May you’ll be charged an additional £10 a day up to a maximum of £900. Then after six months, you’ll be charged a further penalty of 5% of the tax you owe, or £300, whichever is greater. There are also additional penalties for paying late of 5% of the tax unpaid at 30 days, six months and 12 months.

 Self Assessment facts summary:

  • 11,564,363 total Self Assessment returns due
  • 8,063,550 returns received (70%), as of 22 January 2019
  • 3,500,813 returns still to file, as of 23 January 2019 (compared to 3,524,798 as at 23 January 2018)
  • 7,359,607 returns, as of 22 January 2019, filed online (91% of total filed)
  • 703,943 returns filed on paper (9% of total filed)

Help is available from the website at or call the helpline on 0300 200 3310, you can also get help on social media.

If you are late with your submission be warned, don’t use these excuses: