Nay, Nay and Nay. Work right through your modelling using my figures.
Stage one, existing asset value 5000 with Accum Depn of 2000. That means the P&L has received to date 2000 in expense (deduction).
Stage two (using your assumptions), new asset value 9000, so 4000 gets added to the asset value, the current Accum Depn 2000 gets reversed and these two combined get posted to the BS Equity revaluation reserve 6000
Stage three, new asset valued 9000 gets overtime depreciated to zero so a Accum Depn of 9000. That means the P&L has received another 9000 in expense (deduction).
So to review - the asset which has had a max value of 9000 has also generated 11000 in P&L expense (deduction). So the question arises - what if that asset then gets revalued again to 3000 ?
Based on your assumptions, this new asset value 3000 gets added to the asset value, the (new) current Accum Depn 9000 gets reversed and these two combined get posted to the BS Equity revaluation reserve 12000.
So you now have an asset worth 3000 with zero Accum Depn, yet it has already generated to the P&L 11000 worth of expense (deduction) and potentially could generate another 3000 in P&L expense (deduction) - so a total of 14000. Meanwhile the BS Equity revaluation reserve holds with regards to this asset 18000 in value (for an asset worth 3000).
Then the idea behind the move is flawed.
Assets get written off. Accumulated depreciation is (a) not an asset and (b) an arbitrary calculation so how can something mathematical be written off.
But as disclosed - that illustration is flawed (and as you will discover) due to rigidity of the control accounts.
Most sub-accounts (customer, supplier, inventory) only fall under one control accounts, however a fixed assets sub account falls under two control accounts - Fixed Assets and Accumulated Depreciation - hence the inability to journalise directly to Accumulated Depreciation.
No it is definitely not. You canât create an artificial asset value (1650) to achieve an actual book value (1200). What if the current depreciation is 850, this would imply that you need an artificial asset value of 2050 to achieve the same book value of 1200. This 2050 would be a complete falsity - not only is it a 71% overstatement of the assets value but also (and more importantly) this would allow an asset worth 1200 to be accumulatively depreciated up to 2050.