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Azure Files pricing

Simple, secure and serverless enterprise-grade cloud file shares

Take advantage of fully managed file shares in the cloud that are accessible via the industry-standard SMB and NFS protocols. Azure file shares can be mounted concurrently by cloud or on-premises deployments of Windows, Linux and macOS. Azure file shares can also be cached on Windows Servers with Azure File Sync for fast access near where the data is being used.

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Apply filters to customise pricing options to your needs.

Prices are estimates only and are not intended as actual price quotes. Actual pricing may vary depending on the type of agreement entered with Microsoft and the currency exchange rate. Prices are calculated based on US dollars and converted using Thomson Reuters benchmark rates refreshed on the first day of each calendar month. Sign in to the Azure pricing calculator to see pricing based on your current program/offer with Microsoft. Contact an Azure sales specialist for more information on pricing or to request a price quote. See frequently asked questions about Azure pricing.

Tier Description
Premium Premium file shares enable highly I/O-intensive workloads, with high throughput and low latency. Premium file shares are offered on high-performance solid-state drive (SSD)-based storage.
Transaction-optimised Transaction-optimised file shares enable transaction-heavy workloads that don’t need the latency offered by premium file shares with consistent latency. Transaction-optimised file shares are a great fit for applications that require file storage or for backend storage.
Hot Hot file shares offer storage optimised for general-purpose file sharing scenarios such as team shares and Azure File Sync.
Cool Cool file shares offer cost-efficient storage optimised for online archive storage scenarios. Azure File Sync may also be a good fit for lower churn workloads.

Premium file shares use a provisioned billing model, where you pay for the amount of storage you would like your file share to have, regardless of how much you use. Standard file shares (transaction optimised, hot and cool) use a pay-as-you-go billing model, where you pay based on storage usage, including data stored and transactions. To learn more about how billing works in Azure Files, see Understanding Azure Files billing.

Standard file shares are available in general-purpose storage accounts. General-purpose v2 storage accounts offer the latest Azure Files features, including hot and cool tiers, and are recommended for all users. Transaction-optimised file shares are available in both general purpose v1 and v2 storage accounts. Pricing for standard file shares is based on usage, such that base storage and transaction costs are billed separately.

Data storage

The following table displays the unit price of a GiB of storage. Premium file shares are billed based on provisioned size, regardless of used capacity. Standard files are billed based on usage. These prices vary based on the redundancy option that you select.

Premium Transaction-optimised Hot Cool
Data at rest (GiB/month)
Per GiB storage costs for a file’s data stream.
N/A* $- per used GiB $- per used GiB $- per used GiB
Snapshots (GiB/month)
Snapshot pricing covers the additional storage cost of differential snapshots.
N/A $- per used GiB $- per used GiB $- per used GiB
Metadata at rest (GiB/month)
The cost of file system metadata associated with files and directories such as access control lists (ACLs) or other properties.
Included Included $- $-
Data at rest (GiB/month)
Per GiB storage costs for a file’s data stream.
$- per provisioned GiB* $- per used GiB $- per used GiB $- per used GiB
Snapshots (GiB/month)
Snapshot pricing covers the additional storage cost of differential snapshots.
$- per used GiB $- per used GiB $- per used GiB $- per used GiB
Metadata at rest (GiB/month)
The cost of file system metadata associated with files and directories such as access control lists (ACLs) or other properties.
Included Included $- $-
Data at rest (GiB/month)
Per GiB storage costs for a file’s data stream.
$- per provisioned GiB* $- per used GiB $- per used GiB $- per used GiB
Snapshots (GiB/month)
Snapshot pricing covers the additional storage cost of differential snapshots.
$- per used GiB $- per used GiB $- per used GiB $- per used GiB
Metadata at rest (GiB/month)
The cost of file system metadata associated with files and directories such as access control lists (ACLs) or other properties.
Included Included $- $-
Data at rest (GiB/month)
Per GiB storage costs for a file’s data stream.
N/A* $- per used GiB N/A N/A
Snapshots (GiB/month)
Snapshot pricing covers the additional storage cost of differential snapshots.
N/A $- per used GiB N/A N/A
Metadata at rest (GiB/month)
The cost of file system metadata associated with files and directories such as access control lists (ACLs) or other properties.
Included Included N/A N/A
Data at rest (GiB/month)
Per GiB storage costs for a file’s data stream.
N/A* N/A N/A N/A
Snapshots (GiB/month)
Snapshot pricing covers the additional storage cost of differential snapshots.
N/A N/A N/A N/A
Metadata at rest (GiB/month)
The cost of file system metadata associated with files and directories such as access control lists (ACLs) or other properties.
Included Included N/A N/A

* The provisioned size of a premium file share is specified by quota field via the API. If you decrease the provisioned shares size below the used GiB, you will be billed for the used GiB on premium shares. To learn more, see understanding provisioning of the premium file shares.

Soft-deleted file shares are always billed based on used rather than provisioned GiB. Soft-deleted standard file shares are billed at the same rate as live shares. Soft-deleted premium file shares are billed at the snapshot rate. Learn more about soft delete.

Reserve capacity

Reserve capacity helps you lower your data storage cost by committing to one year or three years of Azure Files. Reserve capacity can be purchased in increments of 10 TiB and 100 TiB for one-year and three-year commitment duration. All prices are per month. For more information, please see understanding capacity reservations.

1-year reserved 3-year reserved
Premium Hot Cool Premium Hot Cool
10 TiB/month N/A $- $- N/A $- $-
100 TiB/month N/A $- $- N/A $- $-
10 TiB/month $- $- $- $- $- $-
100 TiB/month $- $- $- $- $- $-
10 TiB/month $- $- $- $- $- $-
100 TiB/month $- $- $- $- $- $-
10 TiB/month N/A $- $- N/A $- $-
100 TiB/month N/A $- $- N/A $- $-

Transactions and data transfer

For both SMB and REST operations, transaction costs are incurred against your Azure file share, covering operations such as enumerating a directory or reading a file. These prices vary based on the redundancy option you select.

Premium Transaction-optimised Hot Cool
Write transactions (per 10,000)
Write transactions are any operations that modify a file’s data stream. This category also includes file handle operations.
N/A $- $- $-
List transactions (per 10,000)
List transactions are any operations which enumerate parts of the file share, such as listing files and directories within a share.
N/A $- $- $-
Read transactions (per 10,000)
Read transactions are any operations which read from a file’s data stream.
N/A $- $- $-
All other operations (per 10,000)
Any other operations associated with Azure Files (share, snapshot, directory etc.) except delete operations, which are free.
N/A $- $- $-
Data retrieval (per GiB)
Data retrieval is a special charge that only applies to the retrieval of data from cool storage.
N/A N/A N/A $-
Early deletion (per GiB)
Early deletion charge is a special charge that only applies to deleting data from cool storage within 30 days of initial creation. There is no charge for deleting files older than 30 days.
N/A N/A N/A $-
Write transactions (per 10,000)
Write transactions are any operations that modify a file’s data stream. This category also includes file handle operations.
Included $- $- $-
List transactions (per 10,000)
List transactions are any operations which enumerate parts of the file share, such as listing files and directories within a share.
Included $- $- $-
Read transactions (per 10,000)
Read transactions are any operations which read from a file’s data stream.
Included $- $- $-
All other operations (per 10,000)
Any other operations associated with Azure Files (share, snapshot, directory etc.) except delete operations, which are free.
Included $- $- $-
Data retrieval (per GiB)
Data retrieval is a special charge that only applies to the retrieval of data from cool storage.
N/A N/A N/A $-
Early deletion (per GiB)
Early deletion charge is a special charge that only applies to deleting data from cool storage within 30 days of initial creation. There is no charge for deleting files older than 30 days.
N/A N/A N/A $-
Write transactions (per 10,000)
Write transactions are any operations that modify a file’s data stream. This category also includes file handle operations.
Included $- $- $-
List transactions (per 10,000)
List transactions are any operations which enumerate parts of the file share, such as listing files and directories within a share.
Included $- $- $-
Read transactions (per 10,000)
Read transactions are any operations which read from a file’s data stream.
Included $- $- $-
All other operations (per 10,000)
Any other operations associated with Azure Files (share, snapshot, directory etc.) except delete operations, which are free.
Included $- $- $-
Data retrieval (per GiB)
Data retrieval is a special charge that only applies to the retrieval of data from cool storage.
N/A N/A N/A $-
Early deletion (per GiB)
Early deletion charge is a special charge that only applies to deleting data from cool storage within 30 days of initial creation. There is no charge for deleting files older than 30 days.
N/A N/A N/A $-
Write transactions (per 10,000)
Write transactions are any operations that modify a file’s data stream. This category also includes file handle operations.
Included $- N/A N/A
List transactions (per 10,000)
List transactions are any operations which enumerate parts of the file share, such as listing files and directories within a share.
Included $- N/A N/A
Read transactions (per 10,000)
Read transactions are any operations which read from a file’s data stream.
Included $- N/A N/A
All other operations (per 10,000)
Any other operations associated with Azure Files (share, snapshot, directory etc.) except delete operations, which are free.
Included N/A N/A N/A
Data retrieval (per GiB)
Data retrieval is a special charge that only applies to the retrieval of data from cool storage.
N/A N/A N/A N/A
Early deletion (per GiB)
Early deletion charge is a special charge that only applies to deleting data from cool storage within 30 days of initial creation. There is no charge for deleting files older than 30 days.
N/A N/A N/A N/A
Write transactions (per 10,000)
Write transactions are any operations that modify a file’s data stream. This category also includes file handle operations.
Included N/A N/A N/A
List transactions (per 10,000)
List transactions are any operations which enumerate parts of the file share, such as listing files and directories within a share.
Included N/A N/A N/A
Read transactions (per 10,000)
Read transactions are any operations which read from a file’s data stream.
Included N/A N/A N/A
All other operations (per 10,000)
Any other operations associated with Azure Files (share, snapshot, directory etc.) except delete operations, which are free.
Included N/A N/A N/A
Data retrieval (per GiB)
Data retrieval is a special charge that only applies to the retrieval of data from cool storage.
N/A N/A N/A N/A
Early deletion (per GiB)
Early deletion charge is a special charge that only applies to deleting data from cool storage within 30 days of initial creation. There is no charge for deleting files older than 30 days.
N/A N/A N/A N/A
GRS data transfer (per GiB)
The GRS data transfer charge is for bandwidth used to replicate data to the secondary Azure region.
N/A $- $- $-

Prices marked as N/A indicate that the redundancy option is not available in the selected region. Note: File operations that result in data transfer outside an Azure data centre will incur additional outbound data transfer charges.

Prices marked as N/A indicate that the redundancy option is not available in the selected region. Azure File does not support read-access geo-redundant storage (RA-GRS) in any region at this time. File shares in the RA-GRS storage account are charged at GRS prices. Note: File operations that result in data transfer outside an Azure data centre will incur additional outbound data transfer charges

File Sync

These are the costs of syncing your files from Windows servers to Azure file shares in the cloud. Learn more about Azure File Sync.

The total cost of Azure File Sync services is determined by the number of servers that connect to the cloud endpoint (Azure file share) plus the underlying costs of Azure Files (including storage and access costs) and outbound data transfer.

Below is the fixed monthly fee per server.

Price per month
Sync Server* $-
*One sync server free per storage sync service. Sync uses file operations to sync your data to the cloud and other servers, and you will be billed for any operations that are generated in the sync process. The number of file operations generated and the access costs scale with the number of file changes on the server and the number of servers that need to be kept in sync.

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Azure Files details

Learn more about Azure Files features and capabilities.

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SLA

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Documentation

Review technical tutorials, videos and more Azure Files resources.

  • To see the complete breakdown of SMB and FileREST transactions, see About Azure Files and File Sync billing.

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