• Home
  • >
  • Blogs
  • >
  • Self-Assessment Deadline Countdown: 3.8 Million Returns Still Outstanding

Self-Assessment Deadline Countdown: 3.8 Million Returns Still Outstanding

Published Date: January 23, 2024

( Last Updated: February 23, 2026 )

As the 31 January Self-Assessment deadline approaches, 3.8 million individuals are yet to file their tax returns, facing a potential £100 penalty. HM Revenue and Customs (HMRC) urges prompt action to avoid penalties and provides insights into meeting the deadline, payment options, and ceasing Self-Assessment.

Meeting the Self-Assessment Deadline

With only one week remaining, HMRC expects over 12.1 million tax returns for the 2022/23 tax year. Over 8.3 million online returns have been received, emphasising the need for timely submission.

Penalties for missing the self-assessment deadline include the following:

  • Initial £100 fixed penalty, applicable even if no tax is due or if tax is paid on time.
  • After three months, additional daily penalties of £10 per day, up to a maximum of £900.
  • After six months, a further penalty of 5% of the tax due or £300, whichever is greater.
  • After 12 months, another 5% or £300 charge, whichever is greater.

To avoid having to pay any of these hefty fines, it is advised to file your tax returns before the Self-Assessment deadline as soon as possible.

Payment Options and Ceasing Self-Assessment

Setting up a Time-to-Pay arrangement for amounts under £30,000 is encouraged for those unable to pay in full. HMRC advises seeking online help before contacting them directly. Additional penalties exist for missing the Self-Assessment deadline, including 5% of the unpaid tax at 30 days, six months, and 12 months. 

Interest is also charged on late payments. Individuals considering ceasing Self-Assessment for the 2022/23 tax year are reminded to inform HMRC before the deadline to avoid penalties. HMRC has produced videos guiding self-employed and non-self-employed individuals on how to cease Self-Assessment online.

Ease your burden, and let us handle the Self Assessment Tax Return for you

Explore Our Self Assessment Tax Return Services

UK Property Accountants
Our Complete Guides
File your self assessment
Related Posts

Introducing RentalBux: Our MTD Software for Landlords

Generic software doesn't understand property businesses and require manual intervention to meet deadlines. That's why we developed RentalBux!

  • Built by Property Experts
  • Designed for UK Landlords
  • HMRC Recognised and MTD Compliant

Confused where to start?

Schedule a Free 15-minute discovery call by providing your contact details, mentioning your requirements, and selecting a convenient date for the call.

How our discovery call works:

Please wait while the page is loading
Current Progress
Current Progress

Complete Our Contact Form

Discovery Calls Scheduled

Receive a Tailored Proposal

Success message!
Warning message!
Error message!