code: protected function getTaxAccountNumber(float $rate, string $origin)
      {
          foreach ($this->accounts as $account) {
              if ($account->getType() !== AccountingTypes::TYPE_TAX) {
                  continue;
              }
  
              if (0 !== bccomp($account->getTax()->getRate(), $rate, 5)) {
                  continue;
              }
  
              return $account->getNumber();
          }
  
          throw new LogicException(sprintf(
              "No tax account number configured for tax rate '%s' (%s)",
              $rate,
              $origin
          ));
      }
docs: Returns the tax account number for the given tax rate.
  
  @param float  $rate
  @param string $origin
  
  @return string