Is it legal to comply with the request or must it always be refused outright?

Alternatively, is there a way of legally trying to achieve the required objective?

Drafting and executing a document after an event occurs, but in a manner that accurately reflects the date on which the event transpired, is a permissible form of backdating.

This is backdating that memorializes, something the United States Court of Appeals for the Seventh Circuit has recognized as a legitimate practice.

For obvious reasons, any request to backdate a document for these reasons should be flatly turned down.Then the results of the group of business entities, all with the same ownership, would have carried over to the Form 1040 for the husband and wife.The problem is that, I believe, to enable this scenario to become reality, there should have been an amendment made to the original operating agreement for each of the six LLCs indicating a transfer of ownership from the husband and wife, to the S-corp, which is also owned 50/50 by the husband and wife.This would have reduced tax return preparation time for year 2012 by making it possible to file just one consolidated return, and this arrangement would have made it possible for the profits and losses of these six entities to be netted against each other within the holding company S-corp.The holding company S-corp would have issued just two K-1s, one to the husband, and one to the wife; they are the owners of the S-corp, 50/50.