Use Magento Out-Of-Box tax

OOB tax setup for testing:

Magento 2 has useful Out-of-box (OOB) product tax and shipping tax (ship tax) features. This guide shows how to set them up.
Remember to disable third-party tax modules, such as Avatax

Step 1:1: Stores > Tax Zones and Rates : setup a tax zone e.g. CA or WA, wildcard / * for zip, tax rate e.g. 8.25%

Notice naming conventions, product tax such asis `IL_625`, ship tax is `ship_IL_6265`

Step 2:2: CreateAdd two tax rules, one for Product Tax and one for Ship Tax:

Step 2a: Rule one: Product Taxes:

Step

1. 2b: Rule two: Shipping taxes
   
   

   Assign

   Tax Class to Products

   
   Notice, in CatalogShipping_Taxes / Products set to Taxable Good (I think this is already set on our DB, or we could set some local for testing)

2. We may need to disable Avalararule, in the configProductTaxClass, /add a new class and orname disableit the entire module for this testing / TBD`shipping_tax`
   
   

Step

3: Configure tax classes and rules