Want to retire an asset from Tax book

Summary:

Hello All -

We have a requirement to Retire assets from Tax book. The assets life time is 7 years in Corp book(fully depreciated) and 40 years in tax book (only 7 years completed). User wants to retire the asset after 7 years in Tax book too. What is the right way to retire those assets from Tax book.

Can we directly Retire the asset costs or adjust the life of assets to 7 years and retire it?

Thanks in advance!