Including being able to post non-deductible input tax to the GL account of the expense in the Bill and not a generic GL account that is used for everything

The GL account is a mapping and does not follow the item account

Got it. Thanks. Is that the norm?

I have worked with a company with a similar (or the same) requirement. We’ve fixed the issue with a SuiteGL plugin script that checks if the tax code selected on the line is non recoverable. If it is, it alters the GL impact of the transaction by reversing the amount posted to the tax account and posting it to the expense account

Thank you. I was hoping there's a native solution.

NetSuite advanced customer support confirmed that there is no native solution for this problem. The SuiteGL plugin is the only solution

Thanks

note that exactly how it should be posted differs by country and some localization suiteapps may have the needed support but it is true there is no native way of doing what they want (not uncommon req at all to be fair)