Reply To: How to Update Tax Section when my country support GST and no VAT.

Hello,

Sorry to say but your mentioned concern is specifically related to WooCommerce, not Theme-end.

We have came across a WooCommerce Support Thread regarding your concern, please check that:
https://wordpress.org/support/topic/unable-to-change-ex-vat-to-gst-in-checkout-page/

Further, regarding Setting up Taxes on your Site you can check out the WooCommerce Guide too (if required):
https://woocommerce.com/document/setting-up-taxes-in-woocommerce/

Hope this helps !

Best Regards