Last update 19/12/2019
Earnings per share – The objective of IAS 33 Earnings per share is prescribing principles for the determination and presentation of earnings per share, so as to improve performance comparisons between different entities in the same reporting period and between different reporting periods for the same entity.
Earnings per share is mostly used in the consolidated financial statements of a group with a parent:
- whose ordinary shares or potential ordinary shares are traded in a public market (a domestic or foreign stock exchange or an over-the-counter market, including local and regional markets); or
- that files, or is in the process of filing, its financial statements with a securities commission or other regulatory organization for the purpose of issuing ordinary shares in a public market.
However, it also covers the separate or individual financial statements of a single entity with the same characteristics under i. and ii. above.
Basic earnings per share (EPS) – calculation method
An entity shall calculate basic earnings per share amounts for profit or loss attributable to ordinary equity holders of the parent entity and, if presented, profit or loss from continuing operations attributable to those equity holders [IAS 33 9].
Basic earnings per share shall be calculated by dividing profit or loss attributable to ordinary equity holders of the parent entity (the numerator) by the weighted average number of ordinary shares outstanding (the denominator) during the period [IAS 33 10].
| Formula:
Basic earnings per share = |
Earnings
For the purpose of calculating basic earnings per share, the amounts attributable to ordinary equity holders of the parent entity in respect of: (a) profit or loss from continuing operations attributable to the parent entity; and (b) profit or loss attributable to the parent entity, shall be the amounts in (a) and (b) adjusted for the after-tax amounts of preference dividends, differences arising on the settlement of preference shares, and other similar effects of preference shares classified as equity. |
| (Profit or loss attributable to the ordinary equity holders of the parent entity)
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| Weighted average number of ordinary shares outstanding (i.e. in issue) | |
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Shares [IAS 33 19] For the purpose of calculating basic earnings per share, the number of ordinary shares shall be the weighted average number of ordinary shares outstanding during the period. The weighted average number of ordinary shares outstanding during the period and for all periods presented shall be adjusted for events, other than the conversion of potential ordinary shares that have changed the number of ordinary shares outstanding without a corresponding change in resources. |
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Date consideration for the inclusion if shares in determining the weighted average number of shares outstanding:
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Ordinary shares issued as part of the consideration transferred in a business combination are included in the weighted average number of shares from the acquisition date. This is because the acquirer incorporates into its statement of comprehensive income the acquiree’s profits and losses from that date.
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Ordinary shares may be issued, or the number of ordinary shares outstanding may be reduced, without a corresponding change in resources. Examples include:
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Diluted earnings per share (DEPS)
An entity shall adjust profit or loss attributable to ordinary equity holders of the parent entity, and the weighted average number of ordinary shares outstanding, for the effects of all dilutive potential ordinary shares.
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Earnings For the purpose of calculating diluted earnings per share, an entity shall adjust profit or loss attributable to ordinary equity holders of the parent entity, by the after-tax effect of:
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Shares For the purpose of calculating diluted earnings per share, the number of ordinary shares shall be the weighted average number of ordinary shares calculated in the determination of basic earnings per share and adjusted earnings per share, taking into account potential ordinary shares plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. Dilutive potential ordinary shares shall be deemed to have been converted into ordinary shares at the beginning of the period or, if later, the date of the issue of the potential ordinary shares. |
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Dilutive potential ordinary shares [IAS 33 41] Potential ordinary shares shall be treated as dilutive when, and only when, their conversion to ordinary shares would decrease earnings per share or increase loss per share from continuing operations. Examples include:
Where more than one basis of conversion exists, the most dilutive basis is used in the computation of diluted earnings per share. |
Retrospective adjustments

[IAS 33 64 – 65] If the number of shares increase as a result of a capitalisation, bonus issue or share spilt, or decreases as a result of a reverse share split – the calculation of the basic and diluted earnings per share for all periods presented shall be adjusted retrospectively.
If these changes occur after the reporting period but before the financial statements are authorised for issue, the share calculations for those and any prior period financial statements presented shall be based on the new number of shares. In addition, basic and diluted earnings per share of all periods presented shall be adjusted for the effects of errors and adjustments resulting from changes in accounting policies accounted for retrospectively.
Presentation and disclosure
[IAS 38 66] An entity shall present in the statement of comprehensive income basic and diluted earnings per share for profit or loss from continuing operations attributable to the ordinary equity holders of the parent entity and for profit or loss attributable to the ordinary equity holders of the parent entity for the period for each class of ordinary shares that has a different right to share in profit of the period.
[IAS 38 68] An entity that reports a discontinued operation shall disclose the basic and diluted amounts per share for the discontinued operation either in the statement of comprehensive income or in the notes.
Disclosures in the Notes to the (Consolidated) Financial Statements [IAS 33 70 – 73]:
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An entity shall disclose the following:
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the amounts used as the numerators in calculating basic and diluted earnings per share, and a reconciliation of those amounts to profit or loss attributable to the parent entity for the period. The reconciliation shall include the individual effect of each class of instruments that affects earnings per share;
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the weighted average number of ordinary shares used as the denominator in calculating basic and diluted earnings per share, and a reconciliation of these denominators to each other. The reconciliation shall include the individual effect of each class of instruments that affects earnings per share;
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instruments (including contingently issuable shares) that could potentially dilute basic earnings per share in the future, but were not included in the calculation of diluted earnings per share because they are antidilutive for the period(s) presented;
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a description of ordinary share transactions or potential ordinary share transactions, other than those accounted for retrospectively, that occur after the reporting period and that would have changed significantly the number of ordinary shares or potential ordinary shares outstanding at the end of the period if those transactions have occurred before the end of the reporting period.
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If an entity discloses, in addition to basic and diluted earnings per share, amounts per share using a reported component of the statement of comprehensive income other than one required by this Standard, such amounts shall be calculated using the weighted average number of ordinary shares determined in accordance with this Standard.
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Basic and diluted amounts per share relating to such a component shall be disclosed with equal prominence and presented in the notes.
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An entity shall indicate the basis on which the numerator(s) is (are) determined, including whether amounts per share are before tax or after tax. If a component of the statement of comprehensive income is used that is not reported as a line item in the statement of comprehensive income, a reconciliation shall be provided between the component used and a line item that is reported in the statement of comprehensive income.
See also: The IFRS Foundation