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Why does tax only calculate once in AvaTax for Salesforce?


While using the Allow Tax Overrides option, tax will only calculate once, and then is stuck on that number, never changing.


AvaTax for Salesforce


  • Uncheck the tax override option and calculations will resume.


This is expected behavior for the tax override setting. Once there is a value in the tax field (for any given product line), the tax amount will always be forced after that. The override setting is intended strictly as a temporary measure to be used rarely.