diff --git a/apps/api/src/routers/user.ts b/apps/api/src/routers/user.ts
index 2e20429..69f1e8e 100644
--- a/apps/api/src/routers/user.ts
+++ b/apps/api/src/routers/user.ts
@@ -713,9 +713,48 @@ const deleteMe = factory.createHandlers(async (c) => {
   const user = c.get("user");
   const supabase = c.get("supabase");
 
+  const { data: rawProfile, error: profileError } = await supabase
+    .from("profiles")
+    .select("organization_id")
+    .eq("id", user.id)
+    .single();
+
+  if (profileError || !rawProfile) {
+    return c.json({ error: "User not found" }, 404);
+  }
+
+  const profile = rawProfile as typeof rawProfile & { organization_id: number | null };
+  let orgWasSoftDeleted = false;
+
+  if (profile.organization_id) {
+    const { count, error: countError } = await supabase
+      .from("profiles")
+      .select("id", { count: "exact", head: true })
+      .eq("organization_id", profile.organization_id);
+
+    if (countError) {
+      console.warn("Failed to count org members during account deletion, skipping org soft-delete:", countError.message);
+    } else if ((count ?? 0) === 1) {
+      const { error: orgDeleteError } = await (supabase.from("organizations") as any)
+        .update({ deleted_at: new Date().toISOString() })
+        .eq("id", profile.organization_id);
+      if (orgDeleteError) {
+        return c.json({ error: "Failed to delete account" }, 500);
+      }
+      orgWasSoftDeleted = true;
+    }
+  }
+
+  // Deleting the auth user cascades to profiles via FK (profiles_id_fkey ON DELETE CASCADE)
   const { error: authDeleteError } = await supabase.auth.admin.deleteUser(user.id);
 
   if (authDeleteError) {
+    if (orgWasSoftDeleted) {
+      const { error: orgRollbackErr } = await (supabase.from("organizations") as any)
+        .update({ deleted_at: null })
+        .eq("id", profile.organization_id);
+      if (orgRollbackErr) console.error("Failed to roll back org soft-delete:", orgRollbackErr.message);
+    }
     return c.json({ error: "Failed to delete account" }, 500);
   }
 
diff --git a/supabase/migrations/20260427120000_add_deleted_at_to_profiles_and_organizations.sql b/supabase/migrations/20260427120000_add_deleted_at_to_profiles_and_organizations.sql
new file mode 100644
index 0000000..0da148e
--- /dev/null
+++ b/supabase/migrations/20260427120000_add_deleted_at_to_profiles_and_organizations.sql
@@ -0,0 +1 @@
+ALTER TABLE organizations ADD COLUMN IF NOT EXISTS deleted_at timestamptz DEFAULT NULL;