Paid Memberships Pro - Australia GST

pmpro-australia-gst.php

<?php
/*
Plugin Name: Paid Memberships Pro - Australia GST
Plugin URI: http://www.paidmembershipspro.com/wp/pmpro-australia-gst/
Description: Apply Australia GST to Checkouts with PMPro
Version: .1
Author: Stranger Studios
Author URI: http://www.strangerstudios.com
*/
/*  
  Tax solution for Australia
  
  This solution assume the GST tax rate of 10% from March 15th, 2017. Ask your accountant how much tax you must charge.
  More info: https://www.business.gov.au/info/run/tax/register-for-goods-and-services-tax-gst
  
  Edit as needed, then save this file in your plugins folder and activate it through the plugins page in the WP dashboard.
*/ 
//add tax info to cost text. this is enabled if the danish checkbox is checked.
function agst_pmpro_tax($tax, $values, $order)
{  	
	$tax = round((float)$values[price] * 0.1, 2);
	return $tax;
}
 
function agst_pmpro_level_cost_text($cost, $level)
{
	//only applicable for levels > 1
	$cost .= __(" Customers in Australia will be charged a 10% tax.", 'pmpro-australia-gst');
	
	return $cost;
}
add_filter("pmpro_level_cost_text", "agst_pmpro_level_cost_text", 10, 2);
 
//set the default country to Australia
function agst_pmpro_default_country($country) {
	return 'AU';
}
add_filter('pmpro_default_country', 'agst_pmpro_default_country');
 
//update tax calculation if buyer is danish
function agst_region_tax_check() {
	//check state and country
	if (! empty( $_REQUEST['bcountry'] ) ) {			
		$bcountry = trim(strtolower($_REQUEST['bcountry']));
		if($bcountry == "au") {
			//billing address is in AU
			add_filter("pmpro_tax", "agst_pmpro_tax", 10, 3);
		}
	}
}
add_action("init", "agst_region_tax_check");