diff --git a/README.md b/README.md
index 5bc1cbb..c6aedc6 100644
--- a/README.md
+++ b/README.md
@@ -282,6 +282,7 @@ API endpoints
 -------------
 - [Authentication](https://github.com/basecamp/bc3-api/blob/master/sections/authentication.md#authentication)
 <!-- START API ENDPOINTS -->
+- [Account](https://github.com/basecamp/bc3-api/blob/master/sections/account.md#account)
 - [Attachments](https://github.com/basecamp/bc3-api/blob/master/sections/attachments.md#attachments)
 - [Boosts](https://github.com/basecamp/bc3-api/blob/master/sections/boosts.md#boosts)
 - [Campfires](https://github.com/basecamp/bc3-api/blob/master/sections/campfires.md#campfires)
diff --git a/sections/account.md b/sections/account.md
new file mode 100644
index 0000000..76f107d
--- /dev/null
+++ b/sections/account.md
@@ -0,0 +1,166 @@
+Account
+=======
+
+Endpoints:
+
+- [Get account](#get-account)
+- [Update account name](#update-account-name)
+- [Update account logo](#update-account-logo)
+- [Remove account logo](#remove-account-logo)
+
+Get account
+-----------
+
+* `GET /account.json` will return the account for the current access token.
+
+The `logo` field is only present when the account has a logo configured. It is omitted entirely when no logo exists.
+
+###### Example JSON Response
+<!-- START GET /account.json -->
+```json
+{
+  "id": 1009501286,
+  "name": "Honcho Design",
+  "owner_name": "Victor Cooper",
+  "active": true,
+  "created_at": "2026-03-16T21:42:20.134Z",
+  "updated_at": "2026-03-16T21:57:21.050Z",
+  "trial": false,
+  "trial_ends_on": null,
+  "frozen": false,
+  "paused": false,
+  "limits": {
+    "can_create_projects": true,
+    "can_pin_projects": true,
+    "can_create_users": true,
+    "can_upload_files": true
+  },
+  "subscription": {
+    "short_name": "ClientsV1",
+    "proper_name": "Basecamp With Clients",
+    "project_limit": null,
+    "teams": true,
+    "clients": true,
+    "templates": true,
+    "logo": true,
+    "timesheet": true
+  },
+  "settings": {
+    "company_hq_enabled": false,
+    "teams_enabled": true,
+    "projects_enabled": true
+  }
+}
+```
+<!-- END GET /account.json -->
+
+###### Copy as cURL
+
+```shell
+curl -s -H "Authorization: Bearer $ACCESS_TOKEN" https://3.basecampapi.com/$ACCOUNT_ID/account.json
+```
+
+Update account name
+-------------------
+
+* `PUT /account/name.json` will rename the current account. Only account owners can use this endpoint — returns `403 Forbidden` for non-owners.
+
+**Required parameters**:
+
+* `name` - the new name for the account. Returns `400 Bad Request` when blank.
+
+This endpoint returns `200 OK` with the full [account](#get-account) JSON representation on success.
+
+###### Example JSON Request
+
+```json
+{
+  "name": "Honcho Design Studio"
+}
+```
+
+###### Example JSON Response
+<!-- START PUT /account/name.json -->
+```json
+{
+  "id": 1009501286,
+  "name": "Honcho Design Studio",
+  "owner_name": "Victor Cooper",
+  "active": true,
+  "created_at": "2026-03-16T21:42:20.134Z",
+  "updated_at": "2026-03-16T21:57:21.979Z",
+  "trial": false,
+  "trial_ends_on": null,
+  "frozen": false,
+  "paused": false,
+  "limits": {
+    "can_create_projects": true,
+    "can_pin_projects": true,
+    "can_create_users": true,
+    "can_upload_files": true
+  },
+  "subscription": {
+    "short_name": "ClientsV1",
+    "proper_name": "Basecamp With Clients",
+    "project_limit": null,
+    "teams": true,
+    "clients": true,
+    "templates": true,
+    "logo": true,
+    "timesheet": true
+  },
+  "settings": {
+    "company_hq_enabled": false,
+    "teams_enabled": true,
+    "projects_enabled": true
+  }
+}
+```
+<!-- END PUT /account/name.json -->
+
+###### Copy as cURL
+
+```shell
+curl -s -H "Authorization: Bearer $ACCESS_TOKEN" \
+  -H "Content-Type: application/json" \
+  -X PUT \
+  -d '{"name":"Honcho Design Studio"}' \
+  https://3.basecampapi.com/$ACCOUNT_ID/account/name.json
+```
+
+Update account logo
+-------------------
+
+* `PUT /account/logo.json` will upload or replace the account logo. Only administrators and account owners can use this endpoint — returns `403 Forbidden` for others.
+
+Account logos use direct multipart file upload rather than the standard two-stage `/attachments` flow used elsewhere in the API.
+
+**Required parameters**:
+
+* `logo` - the logo image file, sent as a multipart form upload. Accepted formats: PNG, JPEG, GIF, WebP, AVIF, HEIC. Maximum file size: 5 MB. Returns `422 Unprocessable Entity` when the file is missing, the format is invalid, or the file exceeds 5 MB.
+
+Returns `204 No Content` on success.
+
+###### Copy as cURL
+
+```shell
+curl -s -H "Authorization: Bearer $ACCESS_TOKEN" \
+  -X PUT \
+  -F "logo=@company-logo.png" \
+  https://3.basecampapi.com/$ACCOUNT_ID/account/logo.json
+```
+
+Remove account logo
+-------------------
+
+* `DELETE /account/logo.json` will remove the account logo. Only administrators and account owners can use this endpoint — returns `403 Forbidden` for others.
+
+Returns `204 No Content` on success.
+
+###### Copy as cURL
+
+```shell
+curl -s -H "Authorization: Bearer $ACCESS_TOKEN" \
+  -X DELETE \
+  https://3.basecampapi.com/$ACCOUNT_ID/account/logo.json
+```