Deferred tax on unrealised fair value gains on investment property

A fair value gain creates a taxable temporary difference that requires a deferred tax liability through profit or loss even though no cash tax is due and no sale is planned; the rate applied (operating versus disposal/capital-gains basis) depends on a rebuttable sale-versus-use presumption that can swing the deferred tax charge materially and is easy to get wrong or ignore.

What is the tax base of each fair-valued investment property compared to its carrying amount, and is the resulting temporary difference fully provided for? Does the jurisdiction impose a capital-gains/disposal-basis rate different from the ordinary operating rate, and has the correct one been applied under the sale presumption? Is there genuine, documented evidence rebutting the sale presumption (a use-based business model with no history or intention of sale), or is a rebuttal being asserted without support? Is the deferred tax balance remeasured every period as fair value, tax base, or applicable rates change?

1) Determine the tax base of the investment property (usually original cost less any tax depreciation claimed, largely unaffected by fair value remeasurement). 2) Compare the tax base to the fair-valued carrying amount to quantify the taxable temporary difference. 3) Apply the rebuttable presumption in IAS 12 that the carrying amount of investment property measured at fair value will be recovered through sale. 4) Assess whether there is clear evidence rebutting that presumption (e.g. a business model demonstrably consuming substantially all economic benefits through use over time, such as an owner-operator with no history or intention of sale). 5) Select the tax rate and tax base consistent with the expected manner of recovery (sale-basis/capital-gains rate, or use-basis/operating rate). 6) Recognize a deferred tax liability on the full temporary difference through profit or loss (not OCI, since the fair value gain itself already runs through profit or loss under IAS 40). 7) Remeasure the deferred tax balance every period as the fair value, tax base, or applicable rate changes.

Measure the deferred tax liability at the rate and using the tax base expected to apply on recovery of the carrying amount, a capital-gains/disposal rate and disposal-basis tax base if the sale presumption applies, or the ordinary corporate income tax/zakat rate and tax base if rebutted by clear evidence of consumption through use. Remeasure at each reporting date as fair value moves and as tax rates or rules change; the deferred tax liability is not discounted.

Disclose: deferred tax liability recognized on investment property fair value gains and the rate applied; whether the sale or use presumption was applied and, if rebutted, the evidence supporting the rebuttal; reconciliation of the movement in deferred tax balances during the period; the tax rate(s) used and their source (statutory income tax versus zakat versus capital gains/disposal rate).

• Ignoring deferred tax entirely on the basis that no sale is intended and no cash tax is currently payable
• applying the ordinary operating income tax rate without considering that a different capital gains or transfer tax rate would apply on an assumed sale under the rebuttable presumption
• failing to update the deferred tax balance each period as fair value moves, leaving a stale liability
• rebutting the sale presumption without genuine supporting evidence, simply to avoid a higher disposal-basis rate
• overlooking zakat-specific rules where zakat rather than income tax applies to the entity, which can have a different base and treatment than corporate income tax.