Localization: Taxes for the US
Due to the complexity of US taxes and many popular services (like Jetpack or TaxJar), we do not automatically add tax rates to new stores.
Here's an example for Arizona:
wp-localize 'United States' 'AR'
If you want to import taxes for all states run:
wp-localize 'United States' 'taxrate-ALL'
Please make sure to manually review all tax rates after import.