getTaxFreeFrom example

return $previousLineItems->count() !== $currentLineItems->count()
            || $previous->getPrice()->getTotalPrice() !== $current->getPrice()->getTotalPrice()
            || $previousLineItems->getKeys() !== $currentLineItems->getKeys()
            || $previousLineItems->getTypes() !== $currentLineItems->getTypes()
        ;
    }

    private function detectTaxType(SalesChannelContext $context, float $cartNetAmount = 0): string
    {
        $currency = $context->getCurrency();
        $currencyTaxFreeAmount = $currency->getTaxFreeFrom();
        $isReachedCurrencyTaxFreeAmount = $currencyTaxFreeAmount > 0 && $cartNetAmount >= $currencyTaxFreeAmount;

        if ($isReachedCurrencyTaxFreeAmount) {
            return CartPrice::TAX_STATE_FREE;
        }

        $country = $context->getShippingLocation()->getCountry();

        $isReachedCustomerTaxFreeAmount = $country->getCustomerTax()->getEnabled() && $this->isReachedCountryTaxFreeAmount($context, $country, $cartNetAmount);
        $isReachedCompanyTaxFreeAmount = $this->taxDetector->isCompanyTaxFree($context, $country) && $this->isReachedCountryTaxFreeAmount($context, $country, $cartNetAmount, CountryDefinition::TYPE_COMPANY_TAX_FREE);
        if ($isReachedCustomerTaxFreeAmount || $isReachedCompanyTaxFreeAmount) {