Advanced Taxation (UK) · Statutory obligations, time limits and the implications of non-compliance

VAT Registration, Deregistration and Late Payment Penalties for ACCA ATX

Updated 11 October 2026 · Fact-checked

You must register for VAT when taxable supplies exceed £90,000, and you may deregister if expected supplies fall to £88,000 or below. Late payment penalties are 3% at 16 to 30 days late, and 6% plus a daily charge beyond 30 days. In ATX you apply these limits to the facts and compute the penalty.

Understand VAT Registration, Deregistration and Late Payment Penalties

VAT registration is compulsory once a business makes taxable supplies above a set limit. The tax tables for ATX-UK give a registration limit of £90,000 and a deregistration limit of £88,000. The standard rate is 20%. Taxable supplies include standard-rated, reduced-rated and zero-rated sales. Exempt supplies do not count.

There are two registration tests. The historic test looks back at taxable turnover over the last 12 months, rolling, not by tax year. The future test looks ahead: you must register if you expect taxable supplies to exceed the limit in the next 30 days alone. Under the historic test you must notify HMRC within 30 days of the end of the month in which the limit was exceeded, and registration takes effect from the first day of the second month after the month of breach, or an earlier agreed date. Under the future test you must notify by the end of the 30 days, and registration is effective from the date you realised it.

Deregistration is allowed if taxable supplies for the next 12 months are expected to be £88,000 or less. The gap between the limits stops businesses with turnover near the limit from registering and deregistering repeatedly. A business can also deregister if it stops making taxable supplies. Bear in mind the exam may also ask about the VAT effect on assets held at deregistration, so read the facts carefully.

Penalties come in two groups. A business that notifies late may face a late registration penalty, which depends on the VAT due from the date it should have been registered and on how serious the failure is. Separately, late VAT payments carry the penalty in the tax tables: nothing up to 15 days late, 3% at 16 to 30 days late, and 6% plus a daily penalty at an annual rate of 10% beyond 30 days. The late submission points system is a different regime from the late payment regime. It works on points for each late return, with a financial penalty once a threshold is reached. The tax tables do not give its details, so state it only in general terms unless the question gives figures.

Key rules to remember

VAT registration limit: Register if taxable supplies exceed £90,000; Applies to the rolling 12 months (historic test). Exempt supplies are excluded.
Future test: Register if taxable supplies are expected to exceed £90,000 in the next 30 days alone; Notify by the end of the 30 days. Effective from the date you realised.
Deregistration limit: May deregister if taxable supplies in the next 12 months are expected to be £88,000 or less; Given in the tax tables.
Late payment penalty: Up to 15 days late: nil. 16 to 30 days: 3%. Over 30 days: 6% plus a daily penalty at an annual rate of 10%; Applied to the VAT unpaid. Taken from the tax tables.
Historic test notification: Notify within 30 days of the end of the month in which the limit was exceeded; Registration is effective from the first day of the second month after the month of breach, or an earlier agreed date.
Standard rate: 20%; Given in the tax tables.

How to solve VAT Registration, Deregistration and Late Payment Penalties questions

Use this method for any question on registration, deregistration or VAT penalties.

1Identify what is being asked: registration, deregistration, a penalty, or advice on compliance.
2List monthly or annual taxable supplies. Remove exempt and outside-scope supplies.
3For registration, apply the historic test by finding the first month when the rolling 12-month total exceeds £90,000. Also check the future test using the next 30 days.
4Work out the notification deadline and the effective date of registration from the facts.
5For deregistration, compare expected taxable supplies for the next 12 months with £88,000.
6For late payment, count days late, pick the band from the tax tables and calculate the percentage on the VAT unpaid.
7State the conclusion, mention any assumptions, and give practical advice such as acting promptly or making a voluntary disclosure.

Quickest way: Rolling total and date-line method

When to use it: Use it when a question gives monthly turnover figures and asks when registration is needed.

Write the monthly taxable supplies in a row.
Add them cumulatively until the total passes £90,000. That month is the month of breach.
Add 30 days to the end of that month for the notification deadline.
Effective date is the first day of the second month after the month of breach, unless told otherwise.
For penalties, jot the three bands from the tax tables in the margin and pick one.

Common mistakes in VAT Registration, Deregistration and Late Payment Penalties

Using the tax year or accounting year instead of a rolling 12 months for the historic test.
Students are used to income tax periods.
Fix: Always add the last 12 months ending at each month end, and test each month.
Counting exempt supplies towards the £90,000 limit.
The word turnover is read as all sales.
Fix: Include only taxable supplies, which means standard-rated, reduced-rated and zero-rated.
Confusing the registration limit of £90,000 with the deregistration limit of £88,000.
The numbers are close.
Fix: Registration is exceeding £90,000. Deregistration is expecting £88,000 or less.
Treating late submission points and late payment penalties as one regime.
Both relate to late VAT returns.
Fix: Late submission is a points system for returns. Late payment is a percentage penalty on unpaid VAT based on days late.
Applying the late payment percentage to the whole VAT liability rather than the amount still unpaid at the relevant point.
Students do not read the facts about part payments.
Fix: Identify the VAT outstanding and the days late before applying the rate.
Forgetting the future test.
Only the historic test is practised.
Fix: If a large contract or new product is mentioned, test the next 30 days alone against £90,000.

Worked examples

Example 1

A trader makes only standard-rated sales of £8,000 each month from 1 January 2025. In October 2025 sales jump to £12,000 a month and stay there. Ignore the future test. Using the rolling 12-month historic test, in which month does taxable supply first exceed £90,000, when must she notify, and when is registration effective?

Show the solution

January to September 2025: 9 months at £8,000 = £72,000.
October: £72,000 + £12,000 = £84,000. Not above £90,000.
November: £84,000 + £12,000 = £96,000. Above £90,000.
The month of breach is November 2025.
Notify within 30 days of the end of November, so by 30 December 2025.
Registration is effective from 1 January 2026, the first day of the second month after the breach.

Answer: The limit is exceeded at the end of November 2025. She must notify by 30 December 2025 and is registered from 1 January 2026.

Example 2

A business pays VAT of £40,000 on a return, 20 days after the due date. Using the tax table rates, what is the penalty? What would it be if the payment were 35 days late, ignoring the daily penalty?

Show the solution

20 days is within the 16 to 30 days band, so the rate is 3%.
3% × £40,000 = £1,200.
At 35 days the band is more than 30 days, so the penalty is 6% plus a daily penalty at an annual rate of 10%.
6% × £40,000 = £2,400, before the daily element.

Answer: At 20 days late the penalty is £1,200. At 35 days late the fixed element is £2,400, plus the daily penalty at an annual rate of 10%.

Exam tips

Show the rolling total month by month. Marks are for method even if the month is wrong.
Write the date of the notification deadline and effective registration date separately. Examiners award a mark for each.
Quote the figures from the tax tables, then apply them to the facts. Do not rely on memory.
Do not ignore professional skills. If the client has been late, advise on prompt action and the likely penalty exposure in a clear, concise tone.

Practice questions from Statutory obligations, time limits and the implications of non-compliance

VAT Registration, Deregistration and Late Payment Penalties in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

ACCA Applied SkillsDeregistration from VAT

VAT Registration, Deregistration and Late Payment Penalties: frequently asked questions

What are the VAT registration and deregistration limits in ATX-UK?

The registration limit is £90,000 and the deregistration limit is £88,000. Both are in the tax tables given in the exam.

How do late payment penalties work?

Nothing is due up to 15 days late. It is 3% for 16 to 30 days late. Beyond 30 days it is 6% plus a daily penalty at an annual rate of 10%.

What is the difference between late submission points and late payment penalties?

Late submission is a points system tied to late VAT returns. Late payment is a penalty on unpaid VAT that increases the longer it stays unpaid. They are separate regimes and can both apply.

Do I need to calculate the late registration penalty?

If a question gives the VAT due from the date registration was required and the behaviour involved, you apply the percentage stated in the question. Tax tables do not give the late registration rates, so use the figures provided.