Audit and Assurance · The audit of specific items

Audit of Provisions, Contingencies and Accounting Estimates

Updated 11 October 2026 · Fact-checked

Auditing provisions, contingencies and estimates means testing whether IAS 37 recognition rules were applied, whether amounts are reasonable, and whether disclosures are complete. You review management's method and assumptions, check evidence such as legal letters and post year-end events, and obtain written representations. Loans and tax need confirmations and recalculation.

Understand Audit of Provisions, Contingencies and Other Items

A provision is a liability of uncertain timing or amount. Under IAS 37 it is recognised only when there is a present obligation from a past event, an outflow of economic benefits is probable, and a reliable estimate can be made. A contingent liability is a possible obligation, or a present obligation that fails the probable or reliable-estimate test. It is disclosed, not recognised, unless the chance of outflow is remote. A contingent asset is a possible inflow. It is disclosed only when an inflow is probable, and recognised only when it is virtually certain.

The audit risk is twofold. Management may understate provisions to flatter profit (completeness and valuation). It may also recognise excess provisions to smooth profits in future years (the 'cookie jar' approach). Contingent assets may be overstated. Because these items rely on judgement, the risk of material misstatement is usually higher than for routine balances.

Accounting estimates (ISA 540) include provisions, depreciation, expected credit losses, inventory write-downs and fair values. The auditor identifies the estimates, assesses inherent risk (estimation uncertainty, complexity, subjectivity), and responds. Responses include testing how management made the estimate, testing the data and assumptions used, using an auditor's expert, developing an independent point estimate or range, and reviewing events up to the audit report date. The auditor also evaluates indicators of management bias.

Fair value estimates need extra care. Check whether the valuation uses observable market prices or unobservable inputs. Challenge the model, the assumptions and the valuer's competence, objectivity and capabilities. Check that disclosures follow IFRS 13.

Other items follow the assertions. Bank loans and finance liabilities: confirm balances and terms directly with the lender, agree to loan agreements, recalculate interest, split current and non-current amounts, and check covenant compliance and disclosures. Tax: recompute the current tax charge, agree to tax computations and returns, review deferred tax on temporary differences, and check prior-year under or over provisions. Use tax specialists where the matter is complex.

Key rules to remember

Provision recognition (IAS 37): Present obligation from past event + outflow probable + reliable estimate = recognise; All three conditions must be met. If any fails, consider contingent liability disclosure.
Contingent liability treatment: Possible outflow or failed recognition test: disclose unless remote; Do not recognise it in the statement of financial position.
Contingent asset treatment: Inflow probable: disclose. Inflow virtually certain: recognise as an asset; Auditors are cautious here because overstatement boosts profit.
Estimate measurement: Provision = best estimate of expenditure to settle the obligation; Discount if the time value of money is material.
ISA 540 responses: Events up to report date / test management's method / develop own estimate or range; Choose the response based on the assessed risk, and use one or more.

How to solve Audit of Provisions, Contingencies and Other Items questions

Use this method for any question on provisions, contingencies, estimates or other specific items.

1Identify the item and classify it: provision, contingent liability, contingent asset, estimate, loan or tax.
2Apply the IAS 37 or relevant standard test to the facts. State whether recognition, disclosure or nothing is appropriate.
3State the audit risk: which assertion could be misstated (completeness, valuation, presentation) and why, such as bias or uncertainty.
4List procedures that match the risk: documents, third-party confirmations, recalculation, subsequent events, management's method and assumptions.
5Add specialist or external evidence where relevant: legal letters, expert valuers, lender confirmations.
6Cover disclosure and written representations from management.
7Conclude on the effect: if misstated and material, request adjustment, and consider the audit report if management refuses.

Quickest way: Classify, then match procedures

When to use it: Use this in Section C or OT case questions where time is short and the item type is clear.

Write the IAS 37 label first: provision, contingent liability or contingent asset.
Name the main risk in one line (for example understatement of a legal provision).
Give procedures in this order: documents, third parties, recalculation, subsequent events, representations.
Finish with the effect on the report if management will not adjust.

Common mistakes in Audit of Provisions, Contingencies and Other Items

Treating every uncertain item as a provision.
Students remember 'uncertain' and forget the probable and reliable estimate tests.
Fix: Test all three recognition conditions before deciding. Failing any one leads to a contingent liability.
Recognising a contingent asset because a claim has been made.
Students apply the same logic as for liabilities.
Fix: Recognise only when virtually certain. Disclose when probable. Otherwise do nothing.
Listing generic procedures like 'inspect documents' with no link to the item.
Students rush and write from memory of other balances.
Fix: Name the actual document, such as the lawyer's letter, loan agreement, tax computation or valuer's report.
Forgetting disclosure and management bias.
Students focus on the number in the statement of financial position.
Fix: Always add a disclosure check and a comment on whether assumptions look biased toward a favourable result.
Relying only on management's explanation for a litigation provision.
Management is the easiest source of evidence.
Fix: Obtain independent evidence: external legal confirmation, correspondence with the other party, and board minutes.

Worked examples

Example 1

A client is being sued by a customer for $400,000. Management's lawyers say a loss is possible but not probable. The financial statements disclose nothing. Describe the audit procedures and the reporting consequence.

Show the solution

Classification: a possible outflow means a contingent liability under IAS 37, not a provision. Disclosure is required unless the chance is remote.
Risk: completeness and disclosure, because management may be concealing the claim.
Procedures: obtain a letter from the client's lawyers on the likelihood and amount of loss, and send an external confirmation request.
Read board minutes, legal expense accounts and correspondence with the claimant for evidence of the claim's status.
Review events after the year end up to the report date, such as a settlement or court judgement.
Obtain a written representation from management on the completeness of claims and the assessment of likelihood.
Conclusion: if the matter is material and the contingent liability is not disclosed, request disclosure. If management refuses, the opinion is qualified or adverse because of a material misstatement.

Answer: Treat it as a contingent liability needing disclosure. Obtain lawyers' confirmations, review minutes and post year-end events, and get a written representation. If management will not disclose a material item, modify the opinion.

Example 2

The client has a $2 million bank loan repayable in three years. Describe the audit procedures for the loan, and calculate the interest expected if the rate is 6% and the loan was outstanding for the full year with no repayments.

Show the solution

Interest recalculation: $2,000,000 × 6% = $120,000 for the year.
Obtain a direct confirmation from the lender of the balance, interest rate, security and repayment terms.
Agree the amount and terms to the loan agreement and bank statements.
Compare the recalculated interest of $120,000 with the finance cost in the statement of profit or loss, and investigate differences including accrued interest at the year end.
Check classification: any amount due within twelve months is current, the rest non-current.
Review covenant compliance, as a breach might make the loan repayable on demand and affect going concern.
Check disclosure of security, terms and covenants, and agree to board approval minutes.

Answer: Expected annual interest is $120,000. Procedures: lender confirmation, agreement to the loan document, recalculation of interest, check of current and non-current split, covenant review and disclosure check.

Exam tips

In provision questions, always quote the three IAS 37 conditions in your answer before choosing the treatment.
For OT questions, read the probability words carefully: probable, possible, remote and virtually certain lead to different treatments.
In written answers, tie each procedure to a named document or third party. Generic procedures earn little.
For estimates and fair values, mention management bias, the use of an expert, and events after the reporting period.
End with the reporting effect if management refuses to adjust a material misstatement.

Audit of Provisions, Contingencies and Other Items: frequently asked questions

What is the difference between a provision and a contingent liability for audit?

A provision meets the IAS 37 recognition tests, so the auditor tests the recorded amount. A contingent liability does not, so the auditor tests the completeness of the disclosure. The evidence needed differs: valuation for provisions, existence and likelihood for contingencies.

How do you audit an accounting estimate under ISA 540?

Assess the risk from estimation uncertainty, complexity and subjectivity. Then test management's method, data and assumptions, develop your own estimate or range, or review later events. Also evaluate whether there are signs of management bias.

What evidence is best for litigation claims?

A direct letter from the client's lawyers is strong external evidence. Support it with board minutes, correspondence and a review of events after the year end. Written representations alone are not enough.

What procedures apply to bank loans?

Obtain a lender confirmation, agree terms to the loan agreement, recalculate interest, check the current and non-current split and review covenant compliance. Also check the disclosures.