Any good way to create a saved search that is able to calculate the 'as of' date in an AP account? I never have much luck getting this in NetSuite, but the goal would be to have the bill - bill payments as of any given date so I can tie out the detail to the balance sheet. May be a way to do this in a financial report I am not thinking of as well

The AP AGING report will do that. Do you specifically want it as a Saved Search?

There is some line level detail from the bill I would want to incorporate so ideally it would be a search. Using the aging gets me closer to the end result though so thanks for the thought!

Saved searches aren't really good at this.