The WooCommerce settings allow you to define the default customer tax location (“Calculate tax based on” -> “Shop base address“). In this case, when a guest customer enters the checkout, tax will be calculated based on the store address.
The problem is that this option is unusual – businesses require the “Calculate tax based on” -> “Customer billing address” option in most cases.
So, today, we will be setting the default tax location when “Customer billing address” has been chosen AND the customer is either logged out (so, no billing address is set) or logged in but have no saved address (for example, a brand new customer). Enjoy!
PHP Snippet: Set Customer Default Billing Country for Tax Calculations @ WooCommerce Checkout
Please let me know in the comments if everything went as expected. I would be happy to revise the snippet if you report otherwise (please provide screenshots). I have tested this code with Storefront theme, the WooCommerce version listed above and a WordPress-friendly hosting.
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Business Bloomer Founder
Author, WooCommerce expert and WordCamp speaker, Rodolfo has worked as an independent WooCommerce freelancer since 2011. His goal is to help entrepreneurs and developers overcome their WooCommerce nightmares. Rodolfo loves travelling, chasing tennis & soccer balls and, of course, wood fired oven pizza.