WooCommerce - Show zero rated tax lines when except

gistfile1.txt

add_filter( 'woocommerce_cart_tax_totals', 'show_zero_rate_taxes' );

function show_zero_rate_taxes( $tax_totals ) {
	global $woocommerce;

	if ( empty( $tax_totals ) && $woocommerce->customer->is_vat_exempt() ) {
		$tax_totals['zero-rated'] = (object) array(
			'label'            => 'Zero Rated Tax',
			'amount'           => 0,
			'formatted_amount' => woocommerce_price( 0 ),
			'name'             => 'Zero Rated Tax',
			'is_compound'      => false
		);
	}

	return $tax_totals;
}

Hey Mike,

I'm looking for a way to have it that the Zero Rate tax takes place when a subtotal is 999.99 or more. I need it to work this way due to MD state law. Any suggestions?

If you don't want to do the check for is_vat_exempt(), for example if you're working with a 0% VAT, then change line 6 to look like this:
if ( empty( $tax_totals ) ) {

Note that the zero rate tax line will then always show up at checkout if taxes are 0. Tested on WooCommerce 3.3.5

Awesome thanks for the code.
This is not working for me. Any idea?
Thanks.