IAS 33 Treasury Shares and Weighted Average

IAS 33 Treasury — Core Rule

Under IAS 33, treasury shares — ordinary shares repurchased and held by the entity or its subsidiaries — must be excluded from the weighted average number of ordinary shares outstanding when calculating both basic and diluted earnings per share (EPS).

How IAS 33 Treasury Works

IAS 33 Treasury Shares and Weighted Average calculations hinge on the concept that only shares genuinely "outstanding" and held by external parties contribute to the denominator of EPS. The mechanics work as follows:

• Exclusion from the date of acquisition (IAS 33.20): Treasury shares are deducted from the weighted average number of shares from the date the entity acquires them. They are re-included in the weighted average calculation from the date they are cancelled, reissued, or sold — not from the date the transaction is announced or approved.

• Weighted average mechanics (IAS 33.19–20): The weighted average is computed by time-apportioning shares outstanding during the period. A buyback on, say, 1 October in a calendar year reduces the denominator by 3/12 of the repurchased shares (i.e., the fraction of the year they were held as treasury shares). This time-weighting is applied consistently regardless of the share price at repurchase.

• Measurement at cost, equity deduction (IAS 32.33): Treasury shares are recorded at cost and deducted from equity — not as financial assets. This means neither the cash paid nor any subsequent fair value movement affects profit or loss, keeping the numerator (earnings) clean and the denominator correctly reduced.

• Diluted EPS treatment (IAS 33.36): Treasury shares themselves are anti-dilutive (they reduce the denominator and therefore increase EPS), so there is no further adjustment for diluted EPS related to treasury shares already excluded. However, treasury shares held to satisfy employee share option schemes (ESOP) may be netted against assumed issuances under the treasury stock method when computing dilutive options.

• Treasury stock method for options (IAS 33.45–47): When calculating diluted EPS for outstanding options or warrants, assumed proceeds from exercise are deemed to have been used to repurchase shares at average market price. The net incremental shares (shares issued on exercise minus shares "bought back" with proceeds) are added to the denominator. Treasury shares already held may be used in this notional repurchase.

• Disclosure (IAS 33.70): Entities must disclose the weighted average number of ordinary shares used as the denominator, reconciling basic to diluted, and describing the nature of any potential ordinary shares.

IAS 33 Treasury — Practical Example

Scenario: Entity A has 10,000,000 shares outstanding at 1 January 20X1. On 1 April 20X1, it repurchases 600,000 shares at €5.00 each (total €3,000,000). Reported profit attributable to ordinary shareholders: €2,500,000.

Journal entry on repurchase (1 April 20X1)

Weighted average shares calculation

Basic EPS = €2,500,000 / 9,550,000 = €0.262 per share

Had the treasury shares been incorrectly left in the denominator (10,000,000 shares for the full year), EPS would have been understated at €0.250 — a material difference of approximately 4.8%.

IAS 33 Treasury — Common Pitfalls

• Using the announcement date rather than the settlement date: Practitioners sometimes exclude treasury shares from the weighted average from the board approval or announcement date. IAS 33.20 is unambiguous — exclusion begins only when the shares are legally acquired (settlement date), not when the buyback is publicly disclosed or approved.

• Ignoring intra-group treasury share holdings: Where a subsidiary holds shares in the parent entity, those shares are treasury shares from the consolidated group perspective and must be excluded from the group-level EPS denominator (IAS 33.20). Failing to capture subsidiary-held parent shares is a common consolidation audit trap.

• Incorrect treasury stock method netting in diluted EPS: Some preparers reduce the assumed repurchase quantity in the treasury stock method by treasury shares already cancelled rather than those currently held and available. Only shares currently held as treasury stock can be netted; cancelled shares no longer exist and are already absent from the denominator.

IAS 33 Treasury — Key Paragraphs

• IAS 33.19: Defines the weighted average number of ordinary shares outstanding methodology, requiring time-proportionate adjustment for each period.
• IAS 33.20: Specifically mandates exclusion of treasury shares from the date of repurchase and re-inclusion from the date of reissuance or cancellation.
• IAS 33.45–47: Sets out the treasury stock method for diluted EPS — the mechanics of netting assumed proceeds against assumed repurchases at average market price.
• IAS 32.33: Requires treasury shares to be deducted from equity at cost, with no gain or loss recognised in profit or loss on purchase, sale, issue, or cancellation.
• IAS 33.70(a): Disclosure requirement for the weighted average number of ordinary shares used as denominators for basic and diluted EPS.