diff --git a/src/app.rs b/src/app.rs
index 14ea7b4..1c1ffb9 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -130,6 +130,8 @@ pub async fn build(pool: Pool, cfg: Config) -> Result<Router> {
         .route("/health", get(routes::health::get_health))
         .route("/formations", get(routes::health::get_formations))
         .route("/auth/local", post(routes::auth::post_auth_local))
+        .route("/auth/status", get(routes::auth::get_auth_status))
+        .route("/auth/reset", post(routes::auth::post_auth_reset))
         .route("/profile", get(routes::profile::get_profile))
         .route("/club", get(routes::club::get_club))
         .route("/club", put(routes::club::put_club))
diff --git a/src/routes/auth.rs b/src/routes/auth.rs
index dc79589..1c451a7 100644
--- a/src/routes/auth.rs
+++ b/src/routes/auth.rs
@@ -28,3 +28,54 @@ pub async fn post_auth_local(
         "message": "Welcome to OpenFUT FC! Your club has been created."
     })))
 }
+
+/// GET /auth/status — lightweight check: does a profile exist?
+/// Returns 200 `{ "has_profile": true/false }` without erroring.
+pub async fn get_auth_status(State(state): State<AppState>) -> AppResult<Json<Value>> {
+    let count: i64 = sqlx::query_scalar("SELECT COUNT(*) FROM profiles")
+        .fetch_one(&state.pool)
+        .await?;
+    Ok(Json(json!({ "has_profile": count > 0 })))
+}
+
+/// POST /auth/reset — wipe all game data and start fresh.
+/// Deletes every user-data table in dependency order. The schema tables
+/// (migrations) are left intact; calling POST /auth/local afterwards
+/// creates a new profile.
+pub async fn post_auth_reset(State(state): State<AppState>) -> AppResult<Json<Value>> {
+    // Delete in reverse-dependency order to satisfy FK constraints
+    // (SQLite FK enforcement is opt-in, but we follow the order anyway)
+    let tables = [
+        "player_achievements",
+        "notifications",
+        "fut_champs_sessions",
+        "sbc_submissions",
+        "objective_progress",
+        "position_goals",
+        "statistics",
+        "seasons",
+        "matches",
+        "market_listings",
+        "squad_players",
+        "squads",
+        "owned_cards",
+        "packs",
+        "events",
+        "draft_sessions",
+        "settings",
+        "clubs",
+        "profiles",
+    ];
+
+    for table in &tables {
+        sqlx::query(&format!("DELETE FROM {table}"))
+            .execute(&state.pool)
+            .await?;
+    }
+
+    tracing::info!("Full game reset performed");
+    Ok(Json(json!({
+        "reset": true,
+        "message": "All progress has been wiped. Call POST /auth/local to start a new club."
+    })))
+}
diff --git a/tests/integration_test.rs b/tests/integration_test.rs
index 2dcc9c8..1f3d320 100644
--- a/tests/integration_test.rs
+++ b/tests/integration_test.rs
@@ -1679,3 +1679,62 @@ async fn test_achievement_grants_coins() {
     // Should have gained match coins + at least the first_match achievement reward (500)
     assert!(coins_after > coins_before + 400, "expected achievement coin reward in total");
 }
+
+// ── Phase 21: Onboarding / Reset ─────────────────────────────────────────────
+
+#[tokio::test]
+async fn test_auth_status_before_profile() {
+    let app = build_test_app().await;
+    let (status, json) = json_get(&app, "/auth/status").await;
+    assert_eq!(status, StatusCode::OK);
+    assert_eq!(json["has_profile"], false);
+}
+
+#[tokio::test]
+async fn test_auth_status_after_profile() {
+    let app = build_test_app().await;
+    auth(&app, "StatusPlayer").await;
+    let (status, json) = json_get(&app, "/auth/status").await;
+    assert_eq!(status, StatusCode::OK);
+    assert_eq!(json["has_profile"], true);
+}
+
+#[tokio::test]
+async fn test_auth_reset_clears_profile() {
+    let app = build_test_app().await;
+    auth(&app, "ResetPlayer").await;
+
+    // Play a match to generate some state
+    json_post(&app, "/matches/result", serde_json::json!({
+        "squad_id": "dummy", "opponent_name": "Bot",
+        "goals_for": 1, "goals_against": 0, "mode": "squad_battles"
+    })).await;
+
+    // Reset
+    let (status, json) = json_post(&app, "/auth/reset", serde_json::json!({})).await;
+    assert_eq!(status, StatusCode::OK, "{json}");
+    assert_eq!(json["reset"], true);
+
+    // Profile should be gone
+    let (s, _) = json_get(&app, "/profile").await;
+    assert_eq!(s, StatusCode::NOT_FOUND, "profile should not exist after reset");
+
+    // Status should reflect no profile
+    let (_, status_json) = json_get(&app, "/auth/status").await;
+    assert_eq!(status_json["has_profile"], false);
+}
+
+#[tokio::test]
+async fn test_auth_reset_allows_new_profile() {
+    let app = build_test_app().await;
+    auth(&app, "FirstProfile").await;
+
+    json_post(&app, "/auth/reset", serde_json::json!({})).await;
+
+    // Should be able to create a new profile after reset
+    let (status, json) = json_post(&app, "/auth/local",
+        serde_json::json!({ "username": "NewProfile" })
+    ).await;
+    assert_eq!(status, StatusCode::OK, "{json}");
+    assert_eq!(json["profile"]["username"], "NewProfile");
+}