aplica una tasa a una categoria de producto dependiendo del rol de usuario

tax category role

/**
 * Override WooCommerce tax display option for distributors.
 *
 * @see http://stackoverflow.com/questions/29649963/displaying-taxes-in-woocommerce-by-user-role
 * @see https://www.businessbloomer.com/woocommerce-check-if-products-belongs-to-category-tag/
 */

 add_filter( 'woocommerce_before_cart_contents', 'tax_category_role', 1, 2 );
add_filter( 'woocommerce_before_shipping_calculator', 'tax_category_role', 1, 2);
add_filter( 'woocommerce_before_checkout_billing_form', 'tax_category_role', 1, 2 );
add_filter( 'woocommerce_product_get_tax_class', 'tax_category_role', 1, 2 );
add_filter( 'woocommerce_product_variation_get_tax_class', 'tax_category_role', 1, 2 );


function tax_category_role( $tax_class ) {

	if ( current_user_can( 'passive' ) ) {
		global $product;
   $product_id = $product->get_id();
			if ( has_term( 'portatiles', 'product_cat', $product_id ) ) {

			$tax_class = 'Zero Rate';
		}
    }

    return $tax_class;
}