WordPress at Your Fingertips
function is not described

WC_Abstract_Order::calculate_taxes() public WC 1.0

Calculate taxes for all line items and shipping, and store the totals and tax rows.

If by default the taxes are based on the shipping address and the current order doesn't have any, it would use the billing address rather than using the Shopping base location.

Will use the base country unless customer addresses are set.

{} It's a method of the class: WC_Abstract_Order{}

Return

null. Nothing.

Usage

$WC_Abstract_Order = new WC_Abstract_Order();
$WC_Abstract_Order->calculate_taxes( $args );
$args(array)
Added in 3.0.0 to pass things like location.
Default: array()

Code of WC_Abstract_Order::calculate_taxes() WC 5.8.0

public function calculate_taxes( $args = array() ) {
	do_action( 'woocommerce_order_before_calculate_taxes', $args, $this );

	$calculate_tax_for  = $this->get_tax_location( $args );
	$shipping_tax_class = get_option( 'woocommerce_shipping_tax_class' );

	if ( 'inherit' === $shipping_tax_class ) {
		$found_classes      = array_intersect( array_merge( array( '' ), WC_Tax::get_tax_class_slugs() ), $this->get_items_tax_classes() );
		$shipping_tax_class = count( $found_classes ) ? current( $found_classes ) : false;
	}

	$is_vat_exempt = apply_filters( 'woocommerce_order_is_vat_exempt', 'yes' === $this->get_meta( 'is_vat_exempt' ), $this );

	// Trigger tax recalculation for all items.
	foreach ( $this->get_items( array( 'line_item', 'fee' ) ) as $item_id => $item ) {
		if ( ! $is_vat_exempt ) {
			$item->calculate_taxes( $calculate_tax_for );
		} else {
			$item->set_taxes( false );
		}
	}

	foreach ( $this->get_shipping_methods() as $item_id => $item ) {
		if ( false !== $shipping_tax_class && ! $is_vat_exempt ) {
			$item->calculate_taxes( array_merge( $calculate_tax_for, array( 'tax_class' => $shipping_tax_class ) ) );
		} else {
			$item->set_taxes( false );
		}
	}

	$this->update_taxes();
}