diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 285e2d6fcbdbdd766e455fb74a3552e008b86951..d7a09a51c4c396b2ca597729d4d54bde49704f7a 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -17,6 +17,8 @@
     <application
         android:name=".NotesApplication"
         android:allowBackup="true"
+        android:backupAgent="foundation.e.notes.backup.NotesBackupAgent"
+        android:fullBackupOnly="true"
         android:fullBackupContent="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
diff --git a/app/src/main/java/foundation/e/notes/backup/NotesBackupAgent.kt b/app/src/main/java/foundation/e/notes/backup/NotesBackupAgent.kt
new file mode 100644
index 0000000000000000000000000000000000000000..c768c143f6b1c0e5b6352043bf24081db08bc75c
--- /dev/null
+++ b/app/src/main/java/foundation/e/notes/backup/NotesBackupAgent.kt
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2026 e Foundation
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package foundation.e.notes.backup
+
+import android.app.backup.BackupAgent
+import android.app.backup.BackupDataInput
+import android.app.backup.BackupDataOutput
+import android.os.ParcelFileDescriptor
+import android.util.Log
+import it.niedermann.owncloud.notes.persistence.NotesDatabase
+import it.niedermann.owncloud.notes.shared.util.AccountSyncUtil
+
+class NotesBackupAgent : BackupAgent() {
+
+    override fun onBackup(
+        oldState: ParcelFileDescriptor?,
+        data: BackupDataOutput?,
+        newState: ParcelFileDescriptor?
+    ) {
+        // Full Auto Backup handles the file payload.
+    }
+
+    override fun onRestore(
+        data: BackupDataInput?,
+        appVersionCode: Int,
+        newState: ParcelFileDescriptor?
+    ) {
+        // Full Auto Backup handles the file payload.
+    }
+
+    override fun onRestoreFinished() {
+        super.onRestoreFinished()
+
+        runCatching {
+            val accountDao = NotesDatabase
+                .getInstance(applicationContext)
+                .getAccountDao()
+
+            // Non-local account such as murena account will be auto logged-in
+            val removedAccounts = accountDao.getAccounts()
+                .filterNot { AccountSyncUtil.isLocalAccount(applicationContext, it) }
+                .onEach(accountDao::deleteAccount)
+
+            Log.i(TAG, "Restore cleanup finished. Removed non-local accounts: ${removedAccounts.size}")
+        }.onFailure {
+            Log.e(TAG, "Failed to clean up restored accounts", it)
+        }
+    }
+
+    companion object {
+        private const val TAG = "NotesBackupAgent"
+    }
+}