@hamishahern I hear your frustration: if I understand correctly you want it to say “GST” everywhere it says “tax” in the cart, right?
This is the forum for “WooCommerce PDF Invoices & Packing Slips”, and this plugin does not change anything in how prices are printed in the cart – just the PDF invoice, which follows the price settings in woocommerce as they also appear in the emails that WooCommerce sends to your customers.
That said, I think the string you are referring to is coming from a WooCommerce function (WC()->countries->inc_tax_or_vat()), that switches between “(incl. VAT)” and “(incl. tax)” based on whether your country (the country you have set as the shop bases) uses VAT or not. This is a generic label separate from the actual name of the tax rate, after all “GST” is a type of tax.
As far as I know it’s not possible to change this label based on the name of the tax rate. but the aforementioned function does have a filter that would allow you to change the string globally (for all tax rates) to “(inc. GST)”.
add_filter( 'woocommerce_countries_inc_tax_or_vat', function( $tax_or_vat ) {
return "(incl. GST)";
} );
add_filter( 'woocommerce_countries_ex_tax_or_vat', function( $tax_or_vat ) {
return "(ex. GST)";
} );
If you haven’t worked with code snippets (actions/filters) or functions.php before, read this guide: How to use filters
That said, since this question is about WooCommerce functionality rather than about the PDF invoice (which simply follows WooCommerce in that sense) – if you need any further help with this you should contact WooCommerce directly via their own support forums.
Hope that helps, all the best with your store!
