Tax Reports/Queries by Accounting Unit???

Does anyone run a report or a query to attach the Accounting Unit/ Cost Center to a Tax Code and Amount? One of our companies that we just added has reporting requirements for additional Use Tax to be reported by County. Only way we are able to do this is if we can tie the AU/CC back to the Distribution Lines with Tax Codes used. I have not been able to find a relation in any of the tables to get this done. Anyone else run into this issue?