# Reviewing usage cost for Malware Protection for S3
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Your account starts incurring usage cost when you use Malware Protection for S3 beyond the specific limit under the Free Tier plan, or when your account's 12-month Free Tier plan ends. For information about the Free Tier plan, see [Pricing and usage cost for Malware Protection for S3](pricing-malware-protection-for-s3-guardduty.md). Note that the free tier plan does not apply to Malware Protection for S3 on-demand object scanning.

The GuardDuty console doesn't support reviewing the Malware Protection for S3 usage cost. To view the usage cost, navigate to **Cost Explorer** in the [https://console.aws.amazon.com/costmanagement/](https://console.aws.amazon.com/costmanagement/) console. For information about AWS account billing, see the [AWS Billing User Guide](https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/billing-what-is.html).

For information about estimated usage cost in GuardDuty, see [Monitoring usage and estimating costs](monitoring_costs.md).