superfly · rianmcguirefly · Oct 15, 2025 · Oct 9, 2025 · Oct 9, 2025 · Oct 9, 2025
diff --git a/about/billing.html.markerb b/about/billing.html.markerb
@@ -58,6 +58,18 @@ If you create a volume, you will be charged for it. You’re billed for volumes
 
 ---
 
+## Volume snapshot billing
+
+Volume snapshot billing is pro-rated to the hour and we subtract the free allowance first. For details, see [Volume Snapshots pricing](/docs/about/pricing/#volume-snapshots).
+
+If you create a snapshot of a volume (either manually or through automatic daily snapshots), you will be charged for the storage space it occupies.
+
+Snapshots are stored incrementally, so you're only charged for data that has changed since the previous snapshot for the volume.
+
+For example, if you have a 10GB volume with 2GB of actual data and 5 daily snapshots with minimal changes between them, you might be charged for around 2.5GB of total snapshot storage rather than 50GB (5 × 10GB).
+
+---
+
 ## Unified Billing
 
 Unified billing allows you to consolidate billing for multiple organizations under a single organization. This means you'll receive a single invoice for all organizations under unified billing. This feature is useful for managing billing for multiple organizations, such as when you have multiple teams or projects.

diff --git a/about/pricing.html.markerb b/about/pricing.html.markerb
@@ -157,6 +157,8 @@ Reserved and dedicated options:
 
 ## Persistent Storage Volumes
 
+### Volumes
+
 [Fly Volumes](/docs/volumes/) are local persistent storage for Machines.
 
 * $0.15/GB per month of provisioned capacity
@@ -165,6 +167,33 @@ Reserved and dedicated options:
 
 You'll be charged for volumes that you create, whether they are attached to a Machine or not, including when an attached Machine is stopped.
 
+### Volume Snapshots
+
+<% if Time.now.utc < '2026-03-01T00:00:00Z' %>
+<section class="callout">
+  **New charges**
+
+  <p class="mt-2">
+    Starting January 1st 2026, we're introducing charges for [volume snapshot](/docs/volumes/snapshots/) storage.
+  </p>
+
+  <p class="mt-2">
+    If you're an existing customer, you can check your usage in the **Billing** section of the [dashboard](https://fly.io/dashboard/personal/billing) on your Upcoming Invoice and in the Cost Explorer.
+  </p>
+</section>
+<% end %>
+
+* $0.08/GB per month
+* First 10GB free each month
+
+[Volume Snapshot billing](/docs/about/billing/#volume-snapshot-billing) is pro-rated to the hour.
+
+Automatic daily snapshots with 5 days retention are enabled by default on new volumes. This can be [adjusted](/docs/volumes/snapshots/#set-or-change-the-snapshot-retention-period) or [disabled](/docs/volumes/snapshots/#disable-automatic-daily-snapshots).
+
+Usage is calculated based on the total stored size of the snapshots, not the provisioned volume size. You're only charged for the actual data stored - if you've written 1GB to a 10GB volume, you'll be charged for around 1GB of snapshot storage.
+
+Snapshots for each volume are stored incrementally, so you'll only be charged for data that has changed since the previously stored snapshot.
+
 ## Network prices
 
 ### Anycast IP addresses

diff --git a/volumes/snapshots.html.markerb b/volumes/snapshots.html.markerb
@@ -66,14 +66,12 @@ We automatically take daily snapshots of your volume and keep them for 5 days by
     Example output:
     ```out
     Snapshots
-    ID                          	STATUS 	SIZE    	CREATED AT
-    vs_yAJylAAN83ZFna0A2yRA3J   	created	76082175	3 hours ago
-    vs_3NlZ9NNmpvoSP4yv3Om1gPm  	created	76082175	1 day ago
-    vs_Y49bw44Z6OocN8j4oXq6ww   	created	76082175	2 days ago
-    vs_gwMAXwwLjOVu1vPQVMN2w3N  	created	76082175	3 days ago
-    vs_Ql8xbllZOYDSmlKB0jxYVpg  	created	76082175	4 days ago
-    vs_plNk4llRGexSL22MOJYRpp   	created	76082175	5 days ago
-    vs_O9jqw997yvOuzyg1NVmmmjxhJ	running	0
+    ID                           STATUS   STORED SIZE  VOL SIZE  CREATED AT  RETENTION DAYS
+    vs_A1b2C3d4E5f6G7h8I9j0K1l2  created      2.0 GiB    10 GiB  5 days ago               5
+    vs_M3n4O5p6Q7r8S9t0U1v2W3x4  created      187 MiB    10 GiB  4 days ago               5
+    vs_Y5z6A7b8C9d0E1f2G3h4I5j6  created       45 MiB    10 GiB  3 days ago               5
+    vs_K7l8M9n0O1p2Q3r4S5t6U7v8  created      106 MiB    10 GiB  2 days ago               5
+    vs_O9jqw997yvOuzyg1NVmmmjxh  running          0 B    10 GiB
     ```
 
 The state of the new snapshot will go from `waiting` to `running` to `created`.
@@ -97,12 +95,12 @@ Restore the data from a volume by creating a new volume from a snapshot:
     Example output:
     ```out
     Snapshots
-    ID                 	SIZE    	CREATED AT
-    vs_1KRgwpDqZ2ll5tx 	17649006	1 day ago
-    vs_nymJyYMwXpjxqTzJ	17677766	2 days ago
-    vs_R3OPAz5jBqzogF16	17689473	3 days ago
-    vs_pZlGZvq3gkAlAcaZ	17655830	4 days ago
-    vs_A9k6age3bQov6twj	17631880	5 days ago
+    ID                           STATUS   STORED SIZE  VOL SIZE  CREATED AT  RETENTION DAYS
+    vs_A1b2C3d4E5f6G7h8I9j0K1l2  created      2.0 GiB    10 GiB  5 days ago               5
+    vs_M3n4O5p6Q7r8S9t0U1v2W3x4  created      187 MiB    10 GiB  4 days ago               5
+    vs_Y5z6A7b8C9d0E1f2G3h4I5j6  created       45 MiB    10 GiB  3 days ago               5
+    vs_K7l8M9n0O1p2Q3r4S5t6U7v8  created      106 MiB    10 GiB  2 days ago               5
+    vs_W9x0Y1z2A3b4C5d6E7f8G9h0  created       73 MiB    10 GiB  1 day ago                5
     ```
 
 1. Restore data from the volume snapshot into a new volume of equal or greater size:
@@ -126,6 +124,31 @@ Restore the data from a volume by creating a new volume from a snapshot:
 
 For options, refer to the [`fly volumes create` docs](/docs/flyctl/volumes-create/) or run `fly volumes create --help`.
 
+## List snapshots and their stored sizes
+
+Snapshots for each volume are stored incrementally, so only data that has changed since the previously stored snapshot consumes additional storage. The total stored size of the snapshots is used for [Volume Snapshot billing](/docs/about/billing/#volume-snapshot-billing).
+
+1. Run `fly volumes list` and copy the ID of the volume.
+
+1. List the volume's snapshots:
+
+    ```cmd
+    fly volumes snapshots list <volume id>
+    ```
+
+    Example output:
+    ```out
+    Snapshots
+    ID                           STATUS   STORED SIZE  VOL SIZE  CREATED AT  RETENTION DAYS
+    vs_A1b2C3d4E5f6G7h8I9j0K1l2  created      2.0 GiB    10 GiB  5 days ago               5
+    vs_M3n4O5p6Q7r8S9t0U1v2W3x4  created      187 MiB    10 GiB  4 days ago               5
+    vs_Y5z6A7b8C9d0E1f2G3h4I5j6  created       45 MiB    10 GiB  3 days ago               5
+    vs_K7l8M9n0O1p2Q3r4S5t6U7v8  created      106 MiB    10 GiB  2 days ago               5
+    vs_W9x0Y1z2A3b4C5d6E7f8G9h0  created       73 MiB    10 GiB  1 day ago                5
+
+    Total stored size: 2.5 GiB
+    ```
+
 ## Disable automatic daily snapshots
 
 Automatic daily snapshots are enabled by default. To disable automatic snapshots, use the `--scheduled-snapshots=false` flag.