Changes to Tax depreciation as per Law

Hi Friends,

We are following January-December Fiscal year, as per the country law we need to make some changes to Asset values for the TAX (book 10), book 11 and book 12 Depreciation areas now. It should not effect Book Depreciation 01. What are the possible methods to do this changes to all Asset balances.

Please help me to understand this scenario in SAP and suggest me the possible solutions.

Thanks