Posting depreciation of fixed assets in Microsoft Dynamics NAV

Hi Team,

I have setup the depreciation book show below

I was able to post depreciation monthly with straight line method but my client discussed that as a rule for them, a full year depreciation is posted for all assets in the year of acquisition. Subsequent depreciation is then monthly. For example, if a car is bought in October 2020. By December 2020, the car is depreciated by 1 year. Hence if the lifespan of the car is 5 years. The end of that lifespan will be 2024 instead of 2025.

I need your guide on this.