Dep Calculation - WDV Method for Tax Book Assets

Hi,

There is client requirement that When we add asset in Corporate book, system will calculate depreciation as per method assigned to asset but when it will transfer to Tax Book, first system will apply fixed amount of depreciation the apply WDV rate on NBV in same period. for example.

Asset # 123456

Asset Cost = 1000000

Method : WDV 20%

Period : Nov-2016.

When we transfer this asset to Tax Book then system will apply fixed amount depreciation which is 50000 then calculate WDV on NBV (1000000-50000) in Same NOV-2016 PERIOD. How can i achieve this requirement of client.

Thanks