Accounting/Export/AccountingExporter.php
protected function writeInvoiceTaxesLine()
    {
        $sale = $this->invoice->getSale();
        $date = $sale->getCreatedAt();

        $credit = $this->invoice->getType() === InvoiceTypes::TYPE_CREDIT;

        foreach ($this->invoice->getTaxesDetails() as $detail) {
            $amount = $this->round($detail['amount']);

            if (0 === $this->compare($amount, 0)) {
                continue; // next tax details
            }

            $account = $this->getTaxAccountNumber($detail['rate'], $this->invoice->getNumber());

            if ($credit) {
                $this->writer->credit($account, (string)$amount, $date);
                $this->balance -= $amount;
            } else {
                $this->writer->debit($account, (string)$amount, $date);
                $this->balance += $amount;
            }
        }
    }
protected function writeInvoiceTaxesLine()
    {
        $sale = $this->invoice->getSale();
        $date = $sale->getCreatedAt();

        $credit = $this->invoice->getType() === InvoiceTypes::TYPE_CREDIT;

        foreach ($this->invoice->getTaxesDetails() as $detail) {
            $amount = $this->round($detail['amount']);

            if (0 === $this->compare($amount, 0)) {
                continue; // next tax details
            }

            $account = $this->getTaxAccountNumber($detail['rate'], $this->invoice->getNumber());

            if ($credit) {
                $this->writer->credit($account, (string)$amount, $date);
                $this->balance -= $amount;
            } else {
                $this->writer->debit($account, (string)$amount, $date);
                $this->balance += $amount;
            }
        }
    }
Writes the invoice's taxes lines.