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A permanently impaired asset must be written down to the present value of its future cash flows. The asset’s carrying value of ($10 − $4 =) $6 million must be reduced by $2 million to $4 million. An impaired value write-down reduces net income for accounting purposes, but not for tax purposes until the asset is sold or disposed of, so taxes payable do not decrease. At a 40% tax rate, the eventual writedown for tax purposes of $2 million will cause $800,000 of changes in deferred tax items. The $600,000 deferred tax liability associated with this asset is eliminated and a deferred tax asset of $200,000 is established.