Update a decommissioning estimate without losing the asset connection

A revised restoration estimate can reflect new engineering work, changed contractor prices, an altered closure date or different discount assumptions. Give each change its own explanation. Replacing the old provision with one updated total hides whether the obligation grew, moved in time or changed only because of the measurement inputs.

IFRIC 1 addresses specified changes in existing decommissioning, restoration and similar liabilities connected with an asset. Its accounting depends on the applicable asset measurement model. This guide concerns that IFRS reassessment; a new legal obligation or another reporting framework requires its own analysis.

Link the estimate to the site, installation and contractual or legal responsibility it covers. Obtain the work quantities, disposal assumptions, remediation specification and exclusions. Identify costs that relate to a later expansion or a different site so they do not quietly enter the existing obligation's schedule.

Ask which assumptions remain uncertain and when better evidence is expected. A contractor's budget estimate and a committed fixed-price offer carry different limitations. Keep those labels in the finance handoff, including the estimate date and the expected work date. The accountant needs both the underlying cash-flow information and an explanation of its reliability.

Start from the last approved liability and distinguish settlement payments, revised expected cash flows, discount-rate changes and the effect of time passing. Keep the original measurement inputs intact. IFRIC 1 treats periodic discount unwinding as a finance cost in profit or loss and does not permit its capitalization under IAS 23.

A restoration estimate can increase because the planned work expands while a later closure date reduces its present value. Explain both movements even if their combined effect is small. Ask the reviewer to approve the remeasurement and unwinding calculations separately so a single net adjustment does not obscure their different accounting treatment.

Provide the asset's carrying amount, measurement model and previous restoration adjustments. Under the cost model, a qualifying liability reduction cannot reduce the related asset below zero; the excess goes to profit or loss. An addition to asset cost also prompts consideration of whether the revised carrying amount indicates an impairment issue.

For a revalued asset, obtain its revaluation history and the reviewer's assessment of the applicable surplus or deficit treatment. The cost-model entry cannot simply be copied across. Preserve the approved movement by asset and liability account, including any profit-or-loss or other-comprehensive-income component, so both registers trace to the same decision.

After an asset adjustment, give the depreciation preparer the approved revised amount and remaining useful life. IFRIC 1 directs subsequent liability changes to profit or loss once the related asset has reached the end of its useful life. An old asset identifier still present in the register should not cause automatic capitalization indefinitely.

Retain the approved remaining-life assessment with the revised schedule and trace the next depreciation entry. Continue reconciling actual restoration payments and outstanding work to the liability separately. The review should explain the current measurement, the destination of each change and the future expense pattern, rather than only producing a replacement provision total.