Welcome to the World of Tax Compliance!

Ever wonder what happens if someone "forgets" to tell the taxman about their income or sends in their tax return a few months late? That is exactly what we are covering today. In this chapter, we look at the penalties HMRC (the UK tax authority) uses to make sure everyone plays by the rules.

Don't worry if this seems like a lot of numbers and percentages at first! Think of these penalties like library fines. The longer you keep the book (or the tax money), the more you have to pay. We will break this down into simple, bite-sized pieces so you can master this for your exam.

Why is this important? In your ACCA TX exam, administration questions are "easy marks" if you know the rules. You don't need complex calculations here; you just need to know the dates and the percentages.


1. Penalties for Late Filing of Returns

This applies when a taxpayer misses the deadline for submitting their Self-Assessment tax return (usually 31 January following the tax year for online returns).

HMRC uses a "stepped" approach. The longer you wait, the higher the penalty:

1 day late: A fixed penalty of £100. This applies even if you have no tax to pay!
3 months late: £10 per day for a maximum of 90 days (Total = £900).
6 months late: The higher of £300 or 5% of the tax liability shown on the return.
12 months late: Another higher of £300 or 5% of the tax liability (this can be up to 100% if the delay is deliberate).

Real-World Analogy: Imagine missing a credit card payment. First, they charge a small fee. If you still don't pay after a few months, they charge interest and higher fees. HMRC does the same to encourage you to hurry up!

Quick Review Box:
1 day = £100
3 months = £10/day
6 months = £300 or 5%
12 months = £300 or 5%


2. Penalties for Late Payment of Tax

Filing the paperwork is one thing, but paying the actual cash is another! If you don't pay your balancing payment (due 31 January) on time, HMRC charges penalties based on how late the payment is.

The percentages are easy to remember because they are all the same:

30 days late: 5% of the unpaid tax.
6 months late: An additional 5% of the unpaid tax.
12 months late: A final 5% of the unpaid tax.

Important Note: These penalties are cumulative. If you are 12 months late, you will have paid a total of 15% in penalties \( (5\% + 5\% + 5\%) \).

Common Mistake to Avoid: Don't confuse interest with penalties. HMRC charges interest on all late payments from the very first day, whereas penalties only kick in at specific milestones (30 days, 6 months, 12 months).


3. Penalties for Errors in Returns

What if you send the return on time, but the numbers are wrong? HMRC looks at why the mistake happened. They use a "behavior-based" system to decide the penalty. This is often called the Penalty Grid.

The Four Levels of Behavior:

1. Reasonable Care: You tried your best but made a small mistake. Penalty = 0%.
2. Careless: You didn't take enough care (e.g., a simple calculation error). Penalty = 0% to 30%.
3. Deliberate but not concealed: You knew the figure was wrong but didn't try to hide it. Penalty = 20% to 70%.
4. Deliberate and concealed: You lied and tried to cover your tracks (e.g., faking invoices). Penalty = 30% to 100%.

Did you know? HMRC gives you a "discount" if you tell them about the mistake before they find it! This is called Unprompted Disclosure. If they find it first, it's Prompted Disclosure, and the penalty is higher.

Key Takeaway: The penalty is always a percentage of the Potential Lost Revenue (PLR). This is the amount of tax HMRC would have lost if they hadn't caught the error.


4. Failure to Notify Chargeability

If you start a new business or start earning extra income, you must tell HMRC. If you don't notify them within 6 months of the end of the tax year (by 5 October), you face a penalty.

The penalty is also behavior-based, similar to errors:

Non-deliberate: 0% to 30% of the tax due.
Deliberate but not concealed: 20% to 70%.
Deliberate and concealed: 30% to 100%.

Memory Aid: Think of the 30-70-100 rule. These are the maximum penalties for the three levels of "naughty" behavior (Careless/Non-deliberate, Deliberate, and Concealed).


5. Summary and Exam Tips

When you see a question about penalties, follow these steps:

Step 1: Identify the type of non-compliance. Is it late filing, late payment, or an error?
Step 2: Check the timeline. How many months past the deadline are we?
Step 3: Check the behavior. Was it a simple mistake (careless) or did they hide it (concealed)?
Step 4: Apply the correct percentage to the tax amount.

Key Terms to Remember:

PLR (Potential Lost Revenue): The tax amount that was underpaid due to an error.
Unprompted Disclosure: Telling HMRC about a mistake before they ask.
Prompted Disclosure: Admitting a mistake only after HMRC starts an investigation.

Final Encouragement: You don't need to be a math genius for this section! Focus on the dates and the "story" of the taxpayer's behavior. If they are honest and try their best, the penalties are low. If they are dishonest, the penalties are high. You've got this!