Avoiding Late Filing Penalties - What You Need to Know

Avoiding Late Filing Penalties – What You Need to Know

 We all lead busy lives. Between running your business, handling customers, and keeping on top of paperwork, it’s easy for deadlines to slip.

But when it comes to your HMRC Self Assessment tax return, missing that deadline can cost you both money and peace of mind.

At Jackson Lee Accountants in Bury, we help clients stay compliant, avoid fines, and sleep better knowing everything is handled properly.

Here’s what you need to know about late filing penalties — and how to avoid them.

What Happens If You Miss the Deadline

If your tax return isn’t filed by 31 January (for online submissions), HMRC automatically issues a £100 fine, even if you don’t owe any tax.

If you’re still late after:

• 3 months: Daily penalties of £10 per day (up to £900)

• 6 months: Further fines of 5 % of the tax due or £300 (whichever is higher)

• 12 months: Additional penalties can apply, sometimes doubling your bill

 It adds up quickly — and it’s completely avoidable.

Why People Miss Deadlines

Some of the most common reasons we hear:

• Waiting for missing paperwork

• Not knowing what income to include

• Feeling overwhelmed by the process

• Thinking “I’ll sort it next week”

Sound familiar? You’re not alone.

How to Avoid Penalties

1. Get organised early – keep your records throughout the year.

2. Use cloud software like Xero – automate and track everything digitally.

3. Let your accountant remind you – we send early reminders and submit for you.

4. File before January – you’ll know your tax bill sooner and avoid the rush.

If You’ve Already Missed It

Don’t panic — contact us straight away. We can:

• File quickly to stop more penalties

• Advise if you qualify for a “reasonable excuse” appeal

• Communicate with HMRC on your behalf

Let’s Take the Stress Away

Tax doesn’t have to be overwhelming. Whether you’re self-employed, a landlord, or running a limited company, we’ll handle your returns and deadlines so you can focus on what matters.

👉 Speak to an accountant today and let’s get everything back on track.