Use the InvoicePeriod element to model this information.

Elements

Element	Description
`/Invoice/InvoicePeriod/StartDate`	The date the invoice period starts.
`/Invoice/InvoicePeriod/EndDate`	The date the invoice periods ends.
`/Invoice/InvoicePeriod/DescriptionCode`

Example

<Invoice>
    <!-- code omitted for clarity -->
    <cac:InvoicePeriod>
        <cbc:StartDate>2024-09-01</cbc:StartDate>
        <cbc:EndDate>2024-09-30</cbc:EndDate>
    </cac:InvoicePeriod>
    <!-- code omitted for clarity -->
</Invoice>