The Province resource represents the sales tax that's applied to orders from the sub-regions of a country. It represents any type of sub-region, such as states, provinces, territories, and counties.
You can use the Province resource to retrieve and update available provinces for only the countries that a shop owner has added to a shipping zone. Merchants add countries to a shipping zone from the Shipping page of their Shopify admin.
For information on accessing the tax information for an entire country, including its provinces, see the Country resource.
As of version 2020-10, you can no longer update custom tax values for the Province resource.
Countries that have provinces in Shopify
Shopify provides provincial tax rates for the following countries:
|Argentina (24 provinces)||Malaysia (16 states/territories)|
|Australia (8 states/territories)|