> ## Documentation Index
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# The Invoice Line Item object

## The Invoice Line Item object

An `InvoiceLineItem` represents a single charge on an invoice, including its amount, quantity, and billing period. It appears in the `lines` array of an `Invoice`, where each item contributes to the invoice total.

```json Invoice Line Item Object theme={null}
{
  "id": "il_348nasdfsdf",
  "object": "line_item",
  "amount": 15000,
  "currency": "CLP",
  "period_end": "2025-09-01T00:00:00Z",
  "period_start": "2025-08-01T00:00:00Z",
  "quantity": 1
}
```

| Attribute      | Type    | Description                                                                                                                    |
| -------------- | ------- | ------------------------------------------------------------------------------------------------------------------------------ |
| `id`           | string  | Unique identifier for the line item.                                                                                           |
| `object`       | string  | Type of the object. Always `line_item`.                                                                                        |
| `amount`       | integer | Amount in the smallest currency unit, for example `1000` for $10.00 MXN, or `1000` for $1000 CLP, since CLP has no minor unit. |
| `currency`     | string  | [Three-letter ISO 4217 currency code](https://www.iso.org/iso-4217-currency-codes.html). Only `CLP` is supported.              |
| `period_end`   | string  | ISO 8601 datetime in UTC for the end of the billing period.                                                                    |
| `period_start` | string  | ISO 8601 datetime in UTC for the start of the billing period.                                                                  |
| `quantity`     | integer | Quantity of items.                                                                                                             |