diff --git a/src/pages/subscription/Subscription.jsx b/src/pages/subscription/Subscription.jsx
index 4eed0d5..f04ded3 100644
--- a/src/pages/subscription/Subscription.jsx
+++ b/src/pages/subscription/Subscription.jsx
@@ -1055,11 +1055,21 @@ const Subscription = () => {
     };
 
     const handleAdd = async (data) => {
-        const n = { ...data, id: Date.now() };
-        const next = [...items, n];
-        persist(next);
+        const tempId = Date.now();
+        const n = { ...data, id: tempId };
+        persist([...items, n]);
         setShowSubModal(false);
-        try { await apiPost('/api/subscription/items', data); } catch {}
+        try {
+            const res = await apiPost('/api/subscription/items', data);
+            if (res?.id) {
+                // 서버가 부여한 실제 DB ID로 교체
+                setItems((prev) => {
+                    const updated = prev.map((i) => (i.id === tempId ? { ...i, id: res.id } : i));
+                    localStorage.setItem('sub_items', JSON.stringify(updated));
+                    return updated;
+                });
+            }
+        } catch {}
     };
 
     const handleUpdate = async (data) => {