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The cost of procrastinating over your tax return

05 December 2024 • HMRC

Are you a Self Assessment procrastinator? If so, you are not alone.

HMRC was expecting around 12.1 million tax returns to be filed for the 2021/22 tax year.

The deadline for filing is midnight on the 31st of January. A staggering 61,549 tax payers finally got round to filing their returns on the day of the deadline between 16:00 and 16:59 - which is the peak time for filing. A further 32,958 only just made it past the post, filing their returns between 23:00 and 23:59. And, while a record-breaking 778.068 made the midnight deadline, around 1.1 million did not!

To say most people do not enjoy preparing their Self Assessment return would be a massive understatement. Many find it time consuming, complex, and extremely stressful. But putting it off, then having to do it in a rush at the last minute, is a sure-fire recipe for disaster. Every year thousands end up either missing the deadline, or not completing their returns correctly and having to pay fines as a result.

To help kick start the process here are a few recommendations and points to bear in mind when considering your next Self Assessment tax return.

  • Start early - Taking the time to collate your information rather than rushing to meet the deadline reduces the chances of making mistakes or missing things.
  • Take advantage of tax planning strategies - Early filing allows you to take full advantage of tax planning strategies that can minimise your liability.
  • Forearmed is forewarned - Starting your assessment sooner means you know in advance what you’ll owe, so can budget for payments rather than face a one-off lump sum.
  • Late filing means penalty fines - Late filing and payment of your tax return can result in hefty fines and interest charges. Missing the 31 January deadline is an immediate £100 fine which increases over time. Interest is also charged on unpaid tax from the due date until payment is made.
  • Rushing can lead to costly mistakes - Careless errors can mean you end up paying more tax than you actually owe. If you do end up owing extra tax it will attract additional charges of 30%. Also, if you miss out any essential information HMRC is likely to follow up and may even investigate.

Do consider getting professional advice

Advice and support from a professional tax accountant will save you time, reduce stress and potentially save you money.

Warrener Stewart offers a comprehensive and accurate self-assessment service to ensure that your tax return is filed correctly and on time, helping avoid penalty fines and providing peace of mind. Our service includes:

  • Ensuring you are correctly registered with HMRC
  • Helping you gather the required information
  • Advising which financial records you need to keep  
  • Calculating your tax liability, completing your return, and filing it on your behalf.
  • Making sure that you are aware of any tax liability, and when it needs to be settled

We will also check your self-assessment is completed, taking advantage of any benefits - some often get overlooked.

So, if you are still procrastinating over your 23/24 tax return, we can help. Call 020 7731 6163 to speak to a member of our tax team, or email info@warrenerstewart.com and we’ll get back to you.

Interesting stats

  • 12,187,811 Self Assessment returns due 
  • 11,581,962 returns received by 31 January (including expected returns, voluntary returns, and late registrations)  
  • 11,027,962 expected returns received by 31 January 
  • An estimated 1.1 million customers missed the deadline

*Source - HM Revenue & Customs (HMRC)

“Warrener Stewart understands our business; they give us more than any other Accountancy service we have ever received in the past. They are extremely commercially aware and very current when it comes to changes in tax policy. ”
Diana Hoare - Anderson Hoare