Magento Open Source 2.2.x
Import/Export Tax Rates

If you conduct business in several states and ship a large quantity of product, entering tax rates manually can be very time consuming. It is faster and more efficient to download tax rates by ZIP code and import them into Magento. The following example shows how to import a set of California tax rates downloaded from the Avalara website. Avalara is a Magento Technology Partner and provides tax rate tables for every ZIP code in the United States, which you can download at no charge.