VatTable::getExcludeVatId

static function getExcludeVatId(): ?int
{
	$iterator = static::getList([
		'select' => [
			'ID',
		],
		'filter' => [
			'=EXCLUDE_VAT' => 'Y',
		],
		'limit' => 1,
	]);
	$row = $iterator->fetch();
	unset($iterator);

	return (!empty($row) ? (int)$row['ID'] : null);
}