Worked example 1
Gamma plc bought a machine for $80,000 on 1 January 2022. The machine has an estimated useful life of eight years and a residual value of $8,000, and is depreciated on the straight-line basis. On 1 January 2024 the directors revalued the machine to $75,000; its remaining useful life and residual value were unchanged.
(a) Calculate the carrying amount of the machine at 31 December 2023. (b) Calculate the revaluation surplus and state where it is recorded, in accordance with IAS 16. (c) Calculate the depreciation charge for the year ended 31 December 2024.
Show solution outline
Step 1 — Annual depreciation before the revaluation: (80,000 − 8,000) ÷ 8 = $9,000 a year.
Step 2 — Carrying amount at 31 December 2023 (a): 80,000 − (2 × 9,000) = $62,000.
Step 3 — Revaluation surplus (b): 75,000 − 62,000 = $13,000. Under IAS 16 the surplus is credited to a revaluation reserve within equity (reported as other comprehensive income). It is not taken to profit or loss, because the gain is unrealised.
Step 4 — Depreciation after the revaluation (c): the revalued amount is depreciated over the remaining six years: (75,000 − 8,000) ÷ 6 = $11,167 (to the nearest dollar).
Step 5 — Optional transfer: IAS 16 permits the excess depreciation (11,167 − 9,000 = $2,167) to be transferred each year from the revaluation reserve to retained earnings as the surplus is realised through use.
Common errors: continuing to charge $9,000 after the revaluation, or crediting the $13,000 surplus to the Statement of Profit or Loss.