Custom Tax Structure For Paid Memberships Pro for States/Provinces.

pmpro-tax-filter-states-province.php

<?php
/**
 * This recipe will add tax based on the different Canadian regions.
 * 
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpro_custom_canada_tax( $tax, $values, $order ) {

    // Get state from checkout.
    $bstate = isset( $_REQUEST['bstate'] ) ? $_REQUEST['bstate'] : '';

    if ( empty( $bstate ) ) {
        return $tax;
    }

    $bstate = strtoupper( $bstate ); // Make sure bstate field is lowercase.
    
    $tax_val = mypmpro_return_tax_for_state( $bstate );
   
    $tax = round ( (float) $values['price'] * $tax_val, 2 );  
   
    return $tax;

}
add_filter( 'pmpro_tax', 'my_pmpro_custom_canada_tax', 10, 3 );

function mypmpro_return_tax_for_state( $state ){

	$tax_val = 0.07; // default to 7% tax.

	switch( $state ){
        case 'AB': //Alberta
        case 'BC': //British Columbia
        case 'MB': //Manitoba
        case 'NT': //Northwest Territories
        case 'NU': //Nunavut
        case 'SK': //Saskatchewan
        case 'YT': //Yukon
        case 'QC': //Quebec
            $tax_val = 0.05;
            break;
        case 'ON': //Ontario
            $tax_val = 0.13;
            break;
        case 'NB': //New Brunswick
        case 'NL': //Newfoundland and Labrador
        case 'NS': //Nova Scotia
        case 'PE': //Prince Edward Island
            $tax_val = 0.15;
            break;            
    }

    return $tax_val;

}

function mypmpro_tax_update_script(){

	?>
	<script type="text/javascript">
		
		jQuery(document).ready(function(){
			
			jQuery("body").on("change", "#bstate", function(){

				var state = jQuery(this).val();

				var data = {
					action: 'mypmpro_get_lct',
					level: '<?php echo $_REQUEST['level']; ?>',
					state: state
				}

				jQuery.post( '<?php echo admin_url('admin-ajax.php'); ?>', data, function( response ){

					jQuery("#pmpro_level_cost").html( response );
					jQuery(".pmpro_submit").prepend( response );
					
				});

			});

		});

	</script>
	<?php
}
add_action( 'wp_footer', 'mypmpro_tax_update_script' );

function mypmpro_level_cost_text_ajax(){

	if( isset( $_REQUEST['action'] ) && $_REQUEST['action'] == 'mypmpro_get_lct' ){
		
		global $pmpro_levels;

		$tax_rate = mypmpro_return_tax_for_state( $_REQUEST['state'] );

		$level = ( isset( $_REQUEST['level'] ) ? $pmpro_levels[$_REQUEST['level']] : '' );	

		if( !empty( $tax_rate ) ){
			$level->initial_payment = $level->initial_payment + ( $level->initial_payment * $tax_rate );
			$level->billing_amount = $level->billing_amount + ( $level->billing_amount * $tax_rate );
		}	
		echo pmpro_getLevelCost( $level ).' Includes 20% VAT.';
		wp_die();
	}


}
add_action( 'wp_ajax_nopriv_mypmpro_get_lct', 'mypmpro_level_cost_text_ajax' );
add_action( 'wp_ajax_mypmpro_get_lct', 'mypmpro_level_cost_text_ajax' );