Here's a weird one.
As we recall, the Inflation Reduction Act of 2022 created a 15% AMT on adjusted financial statement income of corporations over $1 billion.
The unrelated businesses of tax-exempt organizations are also subject to AMT over $1 billion.
In a proposed regulation Corporate Alternative Minimum Tax Applicable After 2022
Because of this, tax-exempt organizations are exempted from filing Form
4626 Corporate AMT for 2023.
Nevertheless, they remain subject to AMT. The tax computation on the form must still be made even though the form isn't filed.
I don't see how the taxpayer would defend a position. Given the size of entity, this would be subject to agency review. Once the final regulation is in place, I assume it'll be retroactive to 2023 any and the orgnization must file anyway.
The organizations I work with aren't that large.