TaxJar Destination-based state not displaying sales tax for other states

The owner of the ecommerce shop I am working on resides in Oklahoma, a destination-based sales tax state. That means taxes are calculated based on where the buyer is. When they check out, they see sales tax calculated inside SnipCart.

However, I live in Utah, and when checking out on their ecommerce site, I do not see any sales tax being calculated. Is this an issue with TaxJar, or SnipCart?

Thanks for any help