Let me address your questions about how Automated Sales Tax (AST) works in QuickBooks Online.
To start, please know that the Tax Code ID remains the same when the sales tax is updated for the same address. The tax code represents a specific tax jurisdiction or category, and it stays consistent even if the tax rates within that jurisdiction change.
And yes, the Tax Code also remains the same while only the Tax Rate changes. The tax rate is also the actual percentage applied to the sale, and it can be updated without altering the underlying tax code.
Moreover, the tax code is a unique identifier for a specific tax jurisdiction or category, while the tax rate is the percentage applied to sales within that jurisdiction. When tax rates are updated, the tax code will remain the same, ensuring that the correct jurisdiction is applied, but the tax rate is adjusted to reflect the new percentage.
For further information about AST, please refer to this article:
Additionally, you can check out this article to learn how to keeps track of your state's tax laws: Set up where you collect sales tax in QuickBooks Online.
Let me know if you have further concerns about the AST. Have a great day.
