What is the difference between 'TotalTax' and 'TotalTaxCalculated' on the report?

Overview

I am seeing a difference on the TotalTax and the TotalTaxCalculated on a report. 

Avalara Reports

Resolution

• TotalTax is the tax calculated for the transaction.
• TotalTaxCalculated is what the amount would have been if there were not rules governing the tax calculated. 
• There are also jurisdictional rules which alter the tax amount, such as tax maximums.