diff --git a/app/Http/Controllers/Sales/TenantProspectController.php b/app/Http/Controllers/Sales/TenantProspectController.php
index 1c34d558..da404229 100644
--- a/app/Http/Controllers/Sales/TenantProspectController.php
+++ b/app/Http/Controllers/Sales/TenantProspectController.php
@@ -135,13 +135,17 @@ public function update(Request $request, int $id)
             'contact_email' => 'nullable|email|max:100',
             'address' => 'nullable|string|max:500',
             'business_card' => 'nullable|image|max:5120',
+            'id_card' => 'nullable|image|max:5120',
+            'bankbook' => 'nullable|image|max:5120',
             'memo' => 'nullable|string|max:1000',
         ]);
 
         $this->service->update(
             $prospect,
             $validated,
-            $request->file('business_card')
+            $request->file('business_card'),
+            $request->file('id_card'),
+            $request->file('bankbook')
         );
 
         return redirect()->route('sales.prospects.show', $id)
diff --git a/app/Services/Sales/TenantProspectService.php b/app/Services/Sales/TenantProspectService.php
index 61b64922..504ce932 100644
--- a/app/Services/Sales/TenantProspectService.php
+++ b/app/Services/Sales/TenantProspectService.php
@@ -48,9 +48,14 @@ public function register(array $data, ?UploadedFile $businessCard = null): Tenan
     /**
      * 영업권 정보 수정
      */
-    public function update(TenantProspect $prospect, array $data, ?UploadedFile $businessCard = null): TenantProspect
-    {
-        return DB::transaction(function () use ($prospect, $data, $businessCard) {
+    public function update(
+        TenantProspect $prospect,
+        array $data,
+        ?UploadedFile $businessCard = null,
+        ?UploadedFile $idCard = null,
+        ?UploadedFile $bankbook = null
+    ): TenantProspect {
+        return DB::transaction(function () use ($prospect, $data, $businessCard, $idCard, $bankbook) {
             $updateData = [
                 'company_name' => $data['company_name'],
                 'ceo_name' => $data['ceo_name'] ?? null,
@@ -62,11 +67,26 @@ public function update(TenantProspect $prospect, array $data, ?UploadedFile $bus
 
             // 명함 이미지 교체
             if ($businessCard) {
-                // 기존 이미지 삭제
                 if ($prospect->business_card_path) {
                     Storage::disk('tenant')->delete($prospect->business_card_path);
                 }
-                $updateData['business_card_path'] = $this->uploadBusinessCard($businessCard, $prospect->registered_by);
+                $updateData['business_card_path'] = $this->uploadAttachment($businessCard, $prospect->registered_by);
+            }
+
+            // 신분증 이미지 교체
+            if ($idCard) {
+                if ($prospect->id_card_path) {
+                    Storage::disk('tenant')->delete($prospect->id_card_path);
+                }
+                $updateData['id_card_path'] = $this->uploadAttachment($idCard, $prospect->registered_by);
+            }
+
+            // 통장사본 이미지 교체
+            if ($bankbook) {
+                if ($prospect->bankbook_path) {
+                    Storage::disk('tenant')->delete($prospect->bankbook_path);
+                }
+                $updateData['bankbook_path'] = $this->uploadAttachment($bankbook, $prospect->registered_by);
             }
 
             $prospect->update($updateData);
@@ -225,9 +245,9 @@ public function getStats(?int $partnerId = null): array
     }
 
     /**
-     * 명함 이미지 업로드
+     * 첨부파일 업로드 (명함, 신분증, 통장사본 등)
      */
-    private function uploadBusinessCard(UploadedFile $file, int $userId): string
+    private function uploadAttachment(UploadedFile $file, int $userId): string
     {
         $storedName = Str::uuid() . '.' . $file->getClientOriginalExtension();
         $filePath = "prospects/{$userId}/{$storedName}";
@@ -237,6 +257,14 @@ private function uploadBusinessCard(UploadedFile $file, int $userId): string
         return $filePath;
     }
 
+    /**
+     * 명함 이미지 업로드 (register에서 사용)
+     */
+    private function uploadBusinessCard(UploadedFile $file, int $userId): string
+    {
+        return $this->uploadAttachment($file, $userId);
+    }
+
     /**
      * 명함 이미지 삭제
      */