Question 1:
GlobalTech needs to recognize a valuation allowance against its deferred tax asset for the portion of pre-2019 NOL carryforwards it now believes it will be unable to utilize.
This is by FASB ASC 740-10-35-4, which requires a valuation allowance when it is more likely than not that some or all of the deferred tax asset will not be realized.
The amount of the valuation allowance is calculated as the difference between the tax benefit originally recognized and the revised estimate of the tax benefit expected to be realized. In this case, the difference would be 70% of $48 million x 25% tax rate = $8.4 million.
This adjustment would be reflected on both TechnoGlobe's individual financial statements and the consolidated financial statements of GlobalTech.
Question 2:
Implementing tax strategies won't change previous financial actions. The initial valuation allowance should stay unchanged. Future adjustments are allowed if income estimates significantly shift. The strategies' legality and ethics must be carefully considered due to unclear laws.