Advanced Accounting · AS 5 Net Profit or Loss for the Period, Prior Period Items and Changes in Accounting Policies

AS 5 Objective, Scope and Key Definitions (CA Intermediate)

Updated 4 October 2026 · Fact-checked

AS 5 sets how to present net profit or loss for the period in the statement of profit and loss. It defines ordinary activities, extraordinary items, prior period items and accounting policies, and requires separate disclosure of extraordinary and prior period items. To solve questions, test each item against the definition, then classify and disclose it.

Understand AS 5 Objective, Scope and Key Definitions

Every business earns and spends money in a period. Some items are routine. Some are rare. Some belong to an earlier year but were missed. If all of them are lumped together, a reader cannot tell how well the business really performed. AS 5 fixes this by telling you how to classify and disclose these items in the statement of profit and loss.

The objective of AS 5 is to prescribe the classification and disclosure of certain items in the statement of profit and loss, so that all enterprises prepare and present the statement on a consistent basis. That improves comparability between periods and between enterprises. AS 5 also deals with the treatment of changes in accounting estimates and the disclosure of changes in accounting policies.

The scope covers: profit or loss from ordinary activities, extraordinary items, prior period items, changes in accounting estimates and changes in accounting policies. Net profit or loss for the period comprises (a) profit or loss from ordinary activities and (b) extraordinary items. Prior period items are not a separate component of this formula. They are included in determining profit or loss from ordinary activities (or the extraordinary items, if they are extraordinary in nature) and are disclosed separately. AS 5 does not deal with the tax effects of these items. Those are handled under other standards and depend on the circumstances.

Now the four definitions you must know word for word in spirit. Ordinary activities are activities the enterprise undertakes as part of its business, plus related activities done in furtherance of, incidental to, or arising from them. Extraordinary items are income or expenses from events or transactions clearly distinct from ordinary activities, which are not expected to recur frequently or regularly. Prior period items are income or expenses arising in the current period because of errors or omissions in preparing the financial statements of one or more earlier periods. Accounting policies are the specific accounting principles and the methods of applying them that the enterprise adopts in preparing and presenting financial statements.

The key idea is that classification depends on the nature of the event in relation to the business, not on its size or on how the management feels about it. A large item can still be ordinary. A prior period item arises from an error or omission, not from a revised estimate.

Key rules to remember

Net profit or loss for the period: Net profit or loss = Profit or loss from ordinary activities ± Extraordinary items; Prior period items have no separate term here. They are included in determining profit or loss from ordinary activities (unless extraordinary in nature) and are disclosed separately so their effect on current profit can be seen.
Ordinary activities: Business activities + related activities in furtherance of, incidental to, or arising from them; Test: does the item relate to the business the enterprise normally carries on? If yes, it is ordinary.
Extraordinary items: Event clearly distinct from ordinary activities AND not expected to recur frequently or regularly; Both conditions must hold. Nature of the event decides it, not the amount.
Prior period items: Current-period income or expense caused by an error or omission in an earlier period's financial statements; A change in estimate is not a prior period item.
Accounting policies: Specific accounting principles + methods of applying them; Example: choosing FIFO or weighted average is a policy. Revising an asset's useful life is an estimate.
Permitted reasons to change an accounting policy (AS 5): Required by statute, OR required for compliance with an Accounting Standard, OR results in a more appropriate presentation of the financial statements; AS 5 permits a change in accounting policy only on these grounds. AS 5 also requires disclosure of a change in policy that has a material effect. If the amount cannot be ascertained, disclose that fact.

How to solve AS 5 Objective, Scope and Key Definitions questions

Use this method for any question that asks you to classify an item or state the treatment under AS 5.

1Read the item and note what happened and in which period it relates to.
2Ask: is it caused by an error or omission in an earlier period's statements? If yes, it is a prior period item.
3If not, ask: does it arise from the normal business or from activities related to it? If yes, it is an ordinary activity item.
4If it is outside the normal business, ask if it is clearly distinct from ordinary activities and not expected to recur frequently or regularly. If both are true, it is extraordinary.
5Check whether it is really a change in estimate (new information about an existing item) or a change in accounting policy (a different principle or method). Do not confuse these with prior period items.
6Decide the presentation: show extraordinary and prior period items separately in the statement of profit and loss, and disclose nature and amount. For an ordinary item of unusual size, nature or incidence, disclose it separately if that helps explain performance.
7If a policy changed, check the permitted reason (statute, compliance with an AS, or more appropriate presentation, as set out in AS 5) and state the disclosure of the material effect (also AS 5).
8Write the answer in the order: definition, application to the facts, conclusion.

Quickest way: Three-question filter plus a written format

When to use it: Use under time pressure for MCQs and for short classification questions in the written paper.

Question 1: Was it an error or omission of an earlier period? Yes means prior period item. Stop.
Question 2: Is it part of normal business or incidental to it? Yes means ordinary. Stop.
Question 3: Otherwise, is it clearly distinct and non-recurring in nature? Yes means extraordinary.
For MCQs, eliminate options that call a revised estimate a prior period item, or that call something extraordinary only because it is large.
In the written answer, use three lines: Definition (one line from AS 5), Application (link to the facts), Conclusion with disclosure. This earns step marks even if your final classification is debated.

Common mistakes in AS 5 Objective, Scope and Key Definitions

Calling any large or unusual item extraordinary.
Students judge by amount instead of nature.
Fix: Apply both tests: clearly distinct from ordinary activities, and not expected to recur frequently or regularly. A big item from normal business stays ordinary, though it may need separate disclosure.
Treating a change in estimate as a prior period item.
Both show up as an adjustment relating to earlier years.
Fix: A prior period item comes from an error or omission. A change in estimate comes from new information or experience, and its effect goes into the period of change (and future periods if affected).
Confusing accounting policy with accounting estimate.
Both involve depreciation or valuation, so they look alike.
Fix: A policy is the principle or method chosen, such as FIFO or straight-line method. An estimate is a judgement applied, such as useful life or a doubtful debt amount.
Believing prior period items are adjusted through opening reserves and kept out of current profit.
Students mix AS 5 with other frameworks.
Fix: Under AS 5, prior period items are included in determining the current period's net profit or loss and are disclosed separately.
Saying AS 5 prescribes the tax treatment of these items.
Students assume any profit-related standard covers tax.
Fix: AS 5 does not deal with the tax effects of extraordinary items, prior period items, estimate changes or policy changes. Say adjustments depend on the circumstances.
Changing an accounting policy because it gives a better profit figure.
The permitted reasons are not remembered.
Fix: Remember the three reasons AS 5 permits: statute, compliance with an AS, or more appropriate presentation of the financial statements. Better profit alone is not a valid reason. AS 5 then requires disclosure of a change that has a material effect.

Worked examples

Example 1

A trading company reports the following for the year. Classify each item under AS 5: (a) an invoice of the previous year for goods sold was omitted from last year's sales and is booked this year; (b) loss on a customer's debt which was earlier thought recoverable; (c) the company changes its inventory method from FIFO to weighted average to present results more appropriately; (d) the government takes over a plant of the company without usual consideration, an event clearly distinct from its trading business and not expected to recur.

Show the solution

Item (a): the income arises this year because of an omission in last year's statements. This is a prior period item. Show it separately in the statement of profit and loss.
Item (b): the loss on the debt arises from normal trading. It is an ordinary activity item, a normal bad debt written off. It is not a prior period item and not extraordinary. If instead the company revises its provision for doubtful debts, that is a change in estimate and its effect goes into the current period.
Item (c): inventory valuation method is a principle applied in preparing statements. This is a change in accounting policy. It is allowed because it results in a more appropriate presentation. Disclose the change and its material effect, or state the fact if the amount cannot be ascertained.
Item (d): the event is clearly distinct from trading and not expected to recur frequently or regularly. It is an extraordinary item. Disclose its nature and amount separately.

Answer: (a) Prior period item; (b) ordinary activity item (normal bad debt; a revised provision would be a change in estimate); (c) change in accounting policy with disclosure; (d) extraordinary item.

Example 2

For a year, an enterprise has profit from ordinary activities of ₹18,00,000 before the items below. It also has (i) an extraordinary gain of ₹5,00,000 and (ii) a prior period expense of ₹2,00,000 from an omission of last year's electricity bill. Ignore tax. Compute net profit for the period and state the disclosure.

Show the solution

The prior period expense arose from an omission in an earlier period. It is not extraordinary in nature, so it is included in determining profit from ordinary activities and disclosed separately.
Profit from ordinary activities after the prior period expense: ₹18,00,000 − ₹2,00,000 = ₹16,00,000.
Add the extraordinary gain: ₹16,00,000 + ₹5,00,000 = ₹21,00,000.
Disclosure: show the extraordinary gain of ₹5,00,000 and the prior period expense of ₹2,00,000 as separate items, with their nature and amount, so their effect on current profit is visible.

Answer: Net profit for the period = ₹21,00,000, with the extraordinary gain (₹5,00,000) and prior period expense (₹2,00,000) disclosed separately.

Exam tips

Learn the four definitions as keyword sets: ordinary (business plus related), extraordinary (clearly distinct plus non-recurring), prior period (error or omission), policy (principles plus methods).
In MCQs, the trap is usually estimate versus prior period item, or large amount versus extraordinary. Check the cause of the item first.
In a written case, state the definition before the conclusion. Markers give step marks for the reasoning.
Remember where each item sits: extraordinary and prior period items are disclosed separately, and AS 5 does not cover their tax effects.
Memorise the three valid reasons for a change in accounting policy (from AS 5): statute, compliance with an AS, or more appropriate presentation. They are asked directly.

Practice questions from AS 5 Net Profit or Loss for the Period, Prior Period Items and Changes in Accounting Policies

AS 5 Objective, Scope and Key Definitions: frequently asked questions

What is the objective of AS 5?

AS 5 prescribes the classification and disclosure of certain items in the statement of profit and loss, so that all enterprises present the statement on a consistent basis. It also covers changes in accounting estimates and changes in accounting policies.

What is the difference between an extraordinary item and a prior period item?

An extraordinary item comes from an event clearly distinct from ordinary activities and not expected to recur frequently or regularly. A prior period item arises in the current period because of an error or omission in an earlier period's statements. Both are disclosed separately.

Is a change in the useful life of an asset a prior period item?

No. It is a change in accounting estimate. Its effect is recognised in the period of change, and in future periods too if they are affected. A prior period item needs an error or omission in the earlier statements.

Does AS 5 cover the tax effect of extraordinary and prior period items?

No. AS 5 does not deal with the tax implications of these items or of changes in estimates and policies. Appropriate adjustments depend on the circumstances.