# Refund payment

This endpoint refunds an advanced payment, either totally or partially. If the request body is empty or the "amount" field is 0, a full refund is performed. For a partial refund, specify the amount to be returned. In case of success, the request will return a response with status 200.

**POST** `/v1/advanced_payments/{advanced_payment_id}/refunds`

## Request parameters

### Path

- `advanced_payment_id` (number, required)
  Unique identifier of the advanced payment to be refunded.

- `amount` (number, optional)
  Amount to be refunded. If 0 or omitted, the full advanced payment amount is refunded.

## Response parameters

This endpoint has no response body.

## Errors

| Status | Error | Description |
| ------- | ------- | ----------- |
| 400 | 400 | Bad Request. |
| 500 | internal_error | Some error occurred on our side while attempting to process the request. Please try again later. |

## Request example

### cURL

```bash
curl -X POST \
  'https://api.mercadopago.com/v1/advanced_payments/{advanced_payment_id}/refunds' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <ACCESS_TOKEN>' \
  -d '{
  "amount": 0
  }'
```

## Response example

```json
[
  {
  "id": "1009042015",
  "payment_id": "18552260055",
  "amount": "24.50",
  "source": {
  "name": "user_name",
  "id": "abcdef1e23f4567d8e9123eb6591ff68df74c57930551ed980239f4538a7e530"
  }
  }
]
```