Use the TaxExchangeRate element to capture the exchange between the Document and Tax currencies.

Elements

Element	Description
`Invoice/TaxExchangeRate/SourceCurrencyCode`	To indicate the source or transaction currency. This is the same as the currency specified in the DocumentCurrencyCode.
`Invoice/TaxExchangeRate/TargetCurrencyCode`	To indicate the destination currency.
`Invoice/TaxExchangeRate/CalculationRate`	The exchange rate. The rate is used to calculate the exchange. If the source currency is USD, then the USD amount equals this rate multiplied by the target currency.

Restrictions

You must capture the Tax Exchange Rate for Portuguese B2G documents that originate outside the country.

Example

<ubl:Invoice>
    <!-- Code omitted for clarity -->
    <cac:TaxExchangeRate>
        <cbc:SourceCurrencyCode>ARS</cbc:SourceCurrencyCode>
        <cbc:TargetCurrencyCode>EUR</cbc:TargetCurrencyCode>
        <cbc:CalculationRate>0.00097</cbc:CalculationRate>
    </cac:TaxExchangeRate>
     <!-- Code omitted for clarity -->
</ubl:Invoice>