Buildit Ltd, a fabricating company, bought an industrial drill on 1^st July 2020 for a price of $150,000. The CFO estimated that the drill had a useful life of 6 years and a straight line basis of depreciation was applied. One year later, on 1^st July 2021 due to technological improvements the CFO determined that the drill would have to be replaced earlier in order to remain competitive. The remaining useful life was estimated to be 4 years. The accounting depreciation rate was changed to reflect this alteration.

The drill was sold for $69,000 on 30 June 2023. This equipment attracted a tax depreciation rate of 35% p.a. The company tax rate is 30%.

Required

For each of the 3 years ended 30 June 2021, 2022 and 2023, calculate the carrying amount and tax base of the drill, and show the deferred tax journal entry at the end of each year. Provide explanations for your answer.