You want to know why the Avalara system tax code logic is not longer functioning
If you use an Avalara System Tax Code as one of your custom tax codes in Avatax, this negates all the rules. The tax code will tax by default
- Even if there are no custom rules for this tax code, having it listed under Tax Codes, it will default to taxable.
- Delete the custom tax code in question that is the same as an Avalara System Tax Code