# Billing for Amazon S3 error responses
<a name="ErrorCodeBilling"></a>

 In general, S3 bucket owners are billed for requests with HTTP `200 OK` successful responses and HTTP `4XX` client error responses. Bucket owners aren't billed for HTTP `5XX` server error responses, such as HTTP `503 Slow Down` errors. For more information about billing charges if your bucket is configured as a Requester Pays bucket, see [How Requester Pays charges work](RequesterPaysBuckets.md#ChargeDetails). 

The following table lists specific error codes under HTTP `3XX` and `4XX` status codes that aren't billed. For buckets configured with website hosting, applicable request and other charges will still apply when S3 returns a [custom error document](CustomErrorDocSupport.md) or for custom redirects. 

**Note**  
For `AccessDenied` (HTTP `403 Forbidden`), S3 doesn't charge the bucket owner when the request is initiated outside of the bucket owner's individual AWS account or the bucket owner's AWS organization. 


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[\[See the AWS documentation website for more details\]](http://docs.aws.amazon.com/AmazonS3/latest/userguide/ErrorCodeBilling.html)