Can we do initial mass copy to Tax book in the second month after conversion?

Summary:

Can we do initial mass copy to Tax book in the second month after conversion without copying to tax book in the first month and closing the first tax book period?

Content (required):

We converted the FA data as of 30-Apr in May. While we are working in Corp book as usual, we have some things to clarify/finalize in Tax book (Dep method). We have closed the corporate book May period but have not yet copied the assets to tax book and want to close the May period for tax book without copying from Corp book so that we will have some time to get tax book setup finalized.