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100+ Free AAT L4 Business & Personal Tax Practice Questions

Prepare for the AAT Level 4 Diploma in Professional Accounting (Q2022) - Business Tax (BNTA) & Personal Tax (PNTA) exam with instant access — no signup required.

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2026 Statistics

Key Facts: AAT L4 Business & Personal Tax Exam

70%

Competency Pass Mark

AAT Assessment Information

2 of 5

Optional Units Chosen

AAT Level 4 Diploma

19-25%

Corporation Tax Rates

GOV.UK Corporation Tax FY2024

£12,570

Personal Allowance

GOV.UK 2024/25

£3,000

CGT Annual Exempt Amount

GOV.UK 2024/25

£90,000

VAT Registration Threshold

GOV.UK from April 2024

AAT Level 4 Business Tax (BNTA) and Personal Tax (PNTA) are optional units of the Q2022 Professional Diploma; students choose two of five optional units. Both are computer-based assessments combining objective and computation tasks, marked to a 70% competency threshold. BNTA covers trading profit adjustments, capital allowances, sole trader, partnership and corporation tax, and business chargeable gains. PNTA covers UK income tax, national insurance, capital gains tax and inheritance tax basics, plus ethical tax planning. Current assessments use Finance Act 2024 rates: corporation tax 19% to 25%, personal allowance £12,570, CGT annual exempt amount £3,000, and the £90,000 VAT registration threshold from April 2024.

Sample AAT L4 Business & Personal Tax Practice Questions

Try these sample questions to test your AAT L4 Business & Personal Tax exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1A sole trader's profit and loss account shows a net profit of £80,000. This figure includes £4,000 of depreciation and £1,200 of client entertaining. When adjusting the accounting profit to the tax-adjusted trading profit, how should these two items be treated?
A.Add back both depreciation and client entertaining
B.Deduct both depreciation and client entertaining
C.Add back depreciation only; client entertaining is allowable
D.Add back client entertaining only; depreciation is allowable
Explanation: Depreciation is not an allowable trading deduction because capital allowances replace it, so it must be added back. Client (business) entertaining is specifically disallowed for tax, so it is also added back. Both increase the tax-adjusted profit by £5,200 in total.
2Under the FA2024 corporation tax regime, a standalone company with taxable total profits of £40,000 for the year ended 31 March 2025 pays corporation tax at which rate?
A.25% main rate
B.19% small profits rate
C.26.5% marginal effective rate
D.0% as it is below the threshold
Explanation: For FY2024, companies with augmented profits at or below the lower limit of £50,000 pay the small profits rate of 19%. As £40,000 is below £50,000, the 19% rate applies with no marginal relief.
3A trading company buys a new piece of qualifying plant and machinery costing £120,000 in its year ended 31 December 2024. The company has no associated companies and has not used its Annual Investment Allowance. What is the maximum capital allowance available on this purchase in the year?
A.£21,600 (18% writing down allowance)
B.£60,000 (50% first-year allowance)
C.£120,000 (full Annual Investment Allowance)
D.£1,000,000 (the AIA limit)
Explanation: The Annual Investment Allowance gives 100% relief on qualifying plant and machinery up to £1,000,000 per year. As the £120,000 cost is well within the limit, the full amount can be claimed, giving a £120,000 allowance.
4For the 2024/25 tax year, an individual has employment income of £60,000 and no other income. Using the standard personal allowance and the basic rate band, how much of their income is taxed at the higher rate of 40%?
A.£22,300
B.£12,570
C.£0
D.£9,730
Explanation: Taxable income is £60,000 minus the £12,570 personal allowance = £47,430. The basic rate band is £37,700, so income above this is £47,430 minus £37,700 = £9,730 taxed at 40%.
5An individual disposes of shares in 2024/25 realising a chargeable gain of £18,000. They have no other disposals. Using the 2024/25 annual exempt amount, what is the taxable gain after the exemption?
A.£15,000
B.£18,000
C.£6,000
D.£3,000
Explanation: The capital gains tax annual exempt amount for 2024/25 is £3,000. Deducting this from the £18,000 gain leaves a taxable gain of £15,000.
6From 6 April 2024, what change was made to compulsory Class 2 National Insurance contributions for self-employed individuals with profits above the small profits threshold?
A.The rate increased to 9%
B.Compulsory Class 2 NIC was abolished, but contributory benefit entitlement is preserved
C.Class 2 was merged into Class 1
D.Class 2 became payable only above £50,270 of profit
Explanation: From 6 April 2024, compulsory Class 2 NIC was abolished. Self-employed individuals with profits above the small profits threshold are treated as having paid Class 2 so their entitlement to contributory benefits, such as the state pension, is preserved without a cash payment.
7A company has a 9-month accounting period ending 31 December 2024. It is a standalone company. What are the corporation tax lower and upper profit limits for this period?
A.£50,000 and £250,000
B.£50,000 and £187,500
C.£37,500 and £187,500
D.£37,500 and £250,000
Explanation: The £50,000 lower and £250,000 upper limits apply to a 12-month period and must be time-apportioned for shorter periods. For 9 months: £50,000 x 9/12 = £37,500 and £250,000 x 9/12 = £187,500.
8Which of the following expenses incurred by a sole trader is an ALLOWABLE deduction when computing tax-adjusted trading profit?
A.A parking fine incurred by the owner while on a business trip
B.Staff Christmas party costing £120 per head
C.Repairs to restore a recently purchased dilapidated asset to working order
D.Trade debts written off as irrecoverable
Explanation: Specific (trade) bad debts written off are an allowable deduction as they are incurred wholly and exclusively for the trade. Fines, capital-nature repairs and excessive staff entertaining are disallowable.
9In 2024/25 an employee earns a salary of £35,000. The Class 1 primary (employee) NIC main rate is 8% on earnings between the primary threshold of £12,570 and the upper earnings limit. Approximately how much Class 1 primary NIC is due?
A.£1,794
B.£2,800
C.£2,686
D.£1,070
Explanation: Earnings subject to the 8% main rate are £35,000 minus the £12,570 primary threshold = £22,430. At 8%, the NIC is £22,430 x 8% = £1,794 (to the nearest pound).
10A higher-rate taxpayer disposes of a residential investment property in 2024/25 making a taxable gain (after the annual exempt amount) of £40,000. What rate of capital gains tax applies to this gain for 2024/25?
A.10%
B.24%
C.18%
D.20%
Explanation: For 2024/25, gains on residential property for a higher-rate taxpayer are taxed at 24% (reduced from 28% on 6 April 2024). Non-residential gains for higher-rate taxpayers are taxed at 20%.

About the AAT L4 Business & Personal Tax Exam

Business Tax (BNTA) and Personal Tax (PNTA) are two of the five optional units in the AAT Level 4 Diploma in Professional Accounting (Q2022). Students choose two. BNTA covers UK taxation of sole traders, partnerships and companies, including trading profit adjustments, capital allowances, corporation tax and chargeable gains. PNTA covers income tax, national insurance, capital gains tax and inheritance tax for individuals, with ethics throughout.

Assessment

Question count not published by the exam provider

Time Limit

Time-limited CBA per unit (typically around 2 to 2.5 hours)

Passing Score

70% competency threshold per assessment

Exam Fee

AAT per-assessment fee plus annual student membership; tuition is charged separately by providers (AAT (Association of Accounting Technicians))

AAT L4 Business & Personal Tax Exam Content Outline

Business Tax unit

Trading Profit Adjustments

Adjusting accounting profit to tax-adjusted trading profit, disallowable expenditure, the wholly and exclusively rule, basis period reform, and the cash basis for unincorporated businesses.

Business Tax unit

Capital Allowances

Annual Investment Allowance up to £1m, main pool 18% and special rate pool 6% WDAs, first-year allowances, cars and vans, balancing charges and balancing allowances.

Business Tax unit

Corporation Tax

Taxable total profits, FA2024 rates of 19% and 25% with marginal relief at 3/200, associated companies, profit limits, trading losses, and quarterly instalment payments.

Business Tax unit

Partnerships and Business Gains

Partnership profit allocation including salaries and ratio changes, company chargeable gains, indexation frozen at December 2017, rollover relief, and capital loss treatment.

Personal Tax unit

Income Tax

Employment, property, savings and dividend income, the £12,570 personal allowance and its taper, income ordering, Gift Aid and pension band extension, and FA2024 rates.

Personal Tax unit

National Insurance and Capital Gains

Class 1 at 8%, Class 1A on benefits, Class 4 at 6% with Class 2 abolished, CGT rates, the £3,000 annual exempt amount, reliefs, share pooling, and chattels.

Personal Tax unit

Inheritance Tax and Planning

The £325,000 nil rate band and £175,000 residence nil rate band, exemptions, potentially exempt transfers, chargeable lifetime transfers, and ethical tax planning.

Both units

Administration and Ethics

Self assessment and corporation tax deadlines and penalties, the £90,000 VAT registration threshold, confidentiality, the five fundamental principles, threats, safeguards, and AML.

How to Pass the AAT L4 Business & Personal Tax Exam

What You Need to Know

  • Passing score: 70% competency threshold per assessment
  • Assessment: Question count not published by the exam provider
  • Time limit: Time-limited CBA per unit (typically around 2 to 2.5 hours)
  • Exam fee: AAT per-assessment fee plus annual student membership; tuition is charged separately by providers

Keys to Passing

  • Work through all 100 available questions
  • Review every answer and explanation
  • Track weak areas and revisit them
  • Use our AI tutor for tough concepts

AAT L4 Business & Personal Tax Study Tips from Top Performers

1Learn the FA2024 rates and thresholds cold, because the assessment expects accurate figures for allowances, bands, and limits.
2Practise full computations under timed conditions, since extended tasks reward correct method and presentation, not just final answers.
3Keep Business Tax and Personal Tax rules separate in your mind; corporation tax rates differ from individual income tax and CGT rates.
4Build an error log tagging mistakes by topic, computation step, and misread requirement.
5Memorise key dates: 31 January and 31 July for self assessment, and 9 months and 1 day after the period end for most corporation tax.
6Revise ethics and the five fundamental principles, as scenario questions on threats and safeguards appear in both tax units.

Frequently Asked Questions

What are BNTA and PNTA in the AAT Level 4 Diploma?

BNTA is the Business Tax unit and PNTA is the Personal Tax unit. They are two of the five optional units in the AAT Level 4 Diploma in Professional Accounting (Q2022), and students choose two optional units in total.

What is the pass mark for AAT Level 4 tax assessments?

AAT applies a competency threshold of 70% to its Level 4 assessments. Students must reach this mark in each unit assessment to be deemed competent and pass.

What Finance Act do the AAT tax assessments use?

Current AAT Level 4 Business Tax and Personal Tax assessments are based on Finance Act 2024 rules. This includes corporation tax rates of 19% to 25%, a £12,570 personal allowance, and a £3,000 capital gains annual exempt amount.

How are the AAT tax assessments delivered?

Both BNTA and PNTA are computer-based assessments (CBA) sat at an AAT-approved venue. They combine objective-test tasks with extended computation tasks, and parts are human-marked rather than purely automated.

Do I have to take both Business Tax and Personal Tax?

No. Business Tax and Personal Tax are two of five optional units at Level 4, and students choose two optional units. You can take both tax units together, or pair one with another optional unit such as Audit and Assurance.

What is the corporation tax rate I need to know for BNTA?

For Finance Act 2024, the small profits rate is 19% on profits up to £50,000 and the main rate is 25% on profits of £250,000 or more, with marginal relief using a 3/200 fraction in between.

What is the capital gains annual exempt amount for the AAT tax units?

Under Finance Act 2024, the capital gains tax annual exempt amount for individuals is £3,000, reduced from £6,000 in the previous year. Companies do not receive an annual exempt amount.

Are these AAT tax units multiple choice?

The real assessments are not purely multiple choice; they mix objective tasks with computation tasks. This free practice bank uses multiple-choice questions to drill the underlying tax rules and computations efficiently.