Policy, estimate, error, retrospective, prospective, impracticable

Learning objectives

• Distinguish an accounting policy, an accounting estimate and a prior period error on the basis of the definitions in the standard.L1, L2
• Explain the notions of retrospective application, retrospective restatement, prospective application and impracticability.L1, L2
• Identify the conditions for a prior period error: reliable information that was available when the financial statements were authorised for issue and could reasonably have been obtained.L2

Normative references

• IAS 8 §5Definitions: accounting policies — the specific principles, bases, conventions, rules and practices applied by an entity in preparing and presenting financial statements; accounting estimates — monetary amounts in financial statements that are subject to measurement uncertainty; 'material' — used as defined in IAS 1 (para. 7); prior period errors — omissions from, and misstatements in, the financial statements for one or more prior periods arising from a failure to use, or misuse of, reliable information that was available when those financial statements were authorised for issue and could reasonably be expected to have been obtained and taken into account (mathematical mistakes, mistakes in applying accounting policies, oversights, misinterpretations of facts, fraud); retrospective application — applying a new accounting policy as if that policy had always been applied; retrospective restatement — correcting the recognition, measurement and disclosure of amounts as if the error had never occurred; prospective application — applying a new policy to transactions occurring after the date of the change, and recognising the effect of a change in estimate in the current and future periods affected; impracticable — a requirement the entity cannot apply after making every reasonable effort to do so, which, for a prior period, covers three situations: effects not determinable; assumptions required about what management's intent would have been at the time; significant estimates for which it is impossible to distinguish objectively information that provides evidence of circumstances that existed at that date and that would have been available when the financial statements were authorised for issue.

Original summaries of the paragraphs (reference register), never a quotation of the standard.

15 questions

• Under IAS 8, an accounting estimate is a monetary amount in the financial statements that is subject to measurement uncertainty.L1
• Retrospective restatement means applying a new accounting policy as if it had always been applied.L1
• For a change in estimate, prospective application means recognising its effect in the current period and in the future periods affected.L1
• Information that became available only after the financial statements of a year were authorised for issue is enough to make those financial statements erroneous.L2
• Which wording matches accounting policies as defined in IAS 8?L1
• When Kevois finalises its 2025 accounts, which of these situations is a prior period error?L2
• When is applying a requirement impracticable under IAS 8?L1
• Molore applies a new policy prospectively. What does it actually do?L2
• Which of the following situations are among the examples of prior period errors?L1
• For a prior period, which of these situations make applying a requirement impracticable?L2
• A trainee at Zylian uses 'retrospective application' and 'retrospective restatement' interchangeably. Write a short explanation distinguishing the two notions, with an example of each.L2
• In 2025, Sergore increases a warranty provision set up at the end of 2024, because the return rate observed in 2025 exceeds the statistics known when the 2024 accounts were finalised. The finance director wants to 'correct the 2024 error'. Write a reasoned reply.L2
• Note by Gridine's accountant: 'In 2025, after observing the actual wear of our trucks, we are reducing their useful life from 8 to 6 years. The 8-year life used in 2024 was therefore an error, which we are correcting retrospectively.' Where is the flaw in the reasoning?L2
• A contractor's invoice for work in December 2024, received on 20 January 2025, was mislaid; Mamenne's 2024 accounts were authorised on 15 March 2025. An assistant concludes: 'The invoice arrived after the reporting date, so its omission is not an error.' What is wrong?L2
• Jaumac's 2024 accounts were authorised on 10 March 2025. In June 2025, a customer that had been solvent is put into liquidation after a fire in May 2025. The controller writes: 'We must restate 2024 to recognise this loss.' What is the mistake?L2