> ## Documentation Index
> Fetch the complete documentation index at: https://docs.helloproper.com/llms.txt
> Use this file to discover all available pages before exploring further.

# The one-time bill item object

### Attributes

<ResponseField name="id" type="string">
  The unique identifier for the one-time bill item
</ResponseField>

<ResponseField name="leaseId" type="string">
  The identifier for the lease associated with the one-time bill item
</ResponseField>

<ResponseField name="created" type="date">
  The creation date and time of the one-time bill item in ISO 8601 format
</ResponseField>

<ResponseField name="modified" type="date">
  The last modification date and time of the one-time bill item in ISO 8601 format
</ResponseField>

<ResponseField name="productKey" type="string">
  The key or identifier for the product or service billed (e.g., "key:rent")
</ResponseField>

<ResponseField name="description" type="string">
  The content of the description that is going to be put on the bill
</ResponseField>

<ResponseField name="amount" type="object">
  The amount charged for the one-time bill item

  <Expandable>
    <ResponseField name="currency" type="string">
      The currency code for the one-time bill item amount (e.g., "DKK")
    </ResponseField>

    <ResponseField name="amount" type="number">
      The amount of one-time bill item (e.g., 100.00)
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="quantity" type="Number">
  The quantity of items billed
</ResponseField>

<ResponseField name="unitNetPrice" type="Amount Object">
  The unit net price charged for the item

  <Expandable title="properties of Amount Object">
    <ResponseField name="currency" type="string">
      The currency code for the amount (e.g., "DKK")
    </ResponseField>

    <ResponseField name="amount" type="number">
      The amount charged
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="netPrice" type="Amount Object">
  The net price charged for the item

  <Expandable title="properties of Amount Object">
    <ResponseField name="currency" type="string">
      The currency code for the amount (e.g., "DKK")
    </ResponseField>

    <ResponseField name="amount" type="number">
      The amount charged
    </ResponseField>
  </Expandable>
</ResponseField>

<ResponseField name="dueDate" type="date">
  The date in ISO 8601 format that one-time bill item is due
</ResponseField>

<ResponseField name="accountingPeriod" type="string">
  The accounting period for the one-time bill item, in the format "YYYY-MM-DD/YYYY-MM-DD"
</ResponseField>

<ResponseField name="vat" type="object">
  The VAT details for the one-time bill item

  <Expandable>
    <ResponseField name="taxMode" type="string">
      The tax mode for the VAT (e.g., "Exempt", "Exclusive")
    </ResponseField>

    <ResponseField name="taxRate" type="number">
      The tax rate for the VAT (e.g., 0.25)
    </ResponseField>
  </Expandable>
</ResponseField>