Get the tax rate(s) from an order in WooCommerce 3

To get the tax rate(s) from an order you will have to get order "tax" item(s).

You will get WC_Order_Item_Tax protected Object(s) and you have to use the dedicated available methods.

Sample code:

// Get an instance of the WC_Order Object$order = wc_get_order($order_id);// Loop through order tax itemsforeach( $order->get_items('tax') as $item ){    $name        = $item->get_name(); // Get rate code name (item title)    $rate_code   = $item->get_rate_code(); // Get rate code    $rate_label  = $item->get_label(); // Get label    $rate_id     = $item->get_rate_id(); // Get rate Id    $tax_total   = $item->get_tax_total(); // Get tax total amount (for this rate)    $ship_total  = $item->get_shipping_tax_total(); // Get shipping tax total amount (for this rate)    $is_compound = $item->is_compound(); // check if is compound (conditional)    $compound    = $item->get_compound(); // Get compound}

Note: An order can have multiple tax rates (items "tax").

You can also use some related WC_Abstract_Order methods on the WC_Order Object to get:

• Get the tax location for the order: $order->get_tax_location() (array).
• Get all tax classes for items in the order: $order->get_items_tax_classes() (array). It will display an empty value for the "Standard" tax class.