Tax settings come from WooCommerce plugin – https://docs.woocommerce.com/document/setting-up-taxes-in-woocommerce/ , by default, our theme doesn’t affect it.
If you face any issue, check how it works when Storefront (default WC theme) is activated on your site. If the problem is independent of the theme (persists with XStore and Storefront), contact the support of woocommerce plugin to get assistance.
