Disable tax for Event Tickets WooCommerce products

functions.php

<?php


add_action( 'event_tickets_after_save_ticket', 'rt_disable_tax_for_event_tickets', 10, 4 );

function rt_disable_tax_for_event_tickets( $post_id, $ticket, $raw_data, $class_name ) {
	//hardcoded for WooCommerce only
	if ( 'Tribe__Tickets_Plus__Commerce__WooCommerce__Main' != $class_name ) {
		return;
	}

	$product = wc_get_product( $ticket->ID );

	if ( ! is_object( $product ) || ! ($product instanceof WC_Product) ) {
		return;
	}

	//set tax status to none
	$product->set_tax_status( 'none' );
	$product->save();
}