Drupal Commerce Order Total components

drupal_commerce_order_total_components_1.php

<?php
        // Get a nicely formatted amount for Ex VAT & Vat order totals.
        
        // Get the order wrapper
        $order_wrapper = entity_metadata_wrapper('commerce_order', $order);
        
        // Order total.
        $order_total = $order_wrapper->commerce_order_total->value();
        
        // Get ex vat amount.
        $total_ex_vat = commerce_price_component_total($order_total , 'base_price');
        $total_ex_vat = commerce_currency_format($total_ex_vat['amount'], $total_ex_vat['currency_code']);
        
        // Get vat amount.
        $total_vat = commerce_price_component_total($order_total , 'tax|vat');
        $total_vat = commerce_currency_format($total_vat['amount'], $total_vat['currency_code']);
?>

drupal_commerce_order_total_components_2.php

<?php
        // Get unformatted amount for Ex VAT & Vat order totals.
        // This is not ideal as country specific rounding issues may result in inaccurate amounts (see next file for best appproach)

        // Get the order wrapper
        $order_wrapper = entity_metadata_wrapper('commerce_order', $order);
        
        // Order total.
        $order_total = $order_wrapper->commerce_order_total->value();
        
        // Get ex vat amount.
        $total_ex_vat = commerce_price_component_total($order_total , 'base_price');
        $amount = commerce_currency_amount_to_decimal($total_ex_vat['amount'], $total_ex_vat['currency_code']);
        $total_ex_vat = $amount;


        // Get vat amount.
        $total_vat = commerce_price_component_total($order_total , 'tax|vat');
        $amount = commerce_currency_amount_to_decimal($total_vat['amount'], $total_vat['currency_code']);
        $total_vat = $amount;
?>

drupal_commerce_order_total_components_3.php

<?php
        // Get  unformatted amount for Ex VAT & Vat order totals with correct country specific rounding and formatting.

        // Get the order wrapper
        $order_wrapper = entity_metadata_wrapper('commerce_order', $order);
        
        // Order total.
        $order_total = $order_wrapper->commerce_order_total->value();
        
        // Get ex vat amount.
        $total_ex_vat = commerce_price_component_total($order_total , 'base_price');
        // Get the decimal amount.
        $amount = commerce_currency_amount_to_decimal($total_ex_vat['amount'], $total_ex_vat['currency_code']);
        // Load the currency object.
        $currency = commerce_currency_load($total_ex_vat['currency_code']);
        // Round and format.
        $total_ex_vat = number_format(commerce_currency_round($amount, $currency), $currency['decimals'], $currency['decimal_separator'], $currency['thousands_separator']);

        // Get vat amount.
        $total_vat = commerce_price_component_total($order_total , 'tax|vat');
        // Get the decimal amount.
        $amount = commerce_currency_amount_to_decimal($total_vat['amount'], $total_vat['currency_code']);
        // Load the currency object.
        $currency = commerce_currency_load($total_vat['currency_code']);
        // Round and format.
        $total_vat = number_format(commerce_currency_round($amount, $currency), $currency['decimals'], $currency['decimal_separator'], $currency['thousands_separator']);

?>

the above examples work if you know the tax type otherwise see https://gist.github.com/BBGuy/2fae6d30a39a6cc00109