diff --git a/app/Http/Controllers/Barobill/EaccountController.php b/app/Http/Controllers/Barobill/EaccountController.php
index 9e227a00..55540f66 100644
--- a/app/Http/Controllers/Barobill/EaccountController.php
+++ b/app/Http/Controllers/Barobill/EaccountController.php
@@ -172,6 +172,11 @@ public function accounts(Request $request): JsonResponse
             $tenantId = session('selected_tenant_id', self::HEADQUARTERS_TENANT_ID);
             $barobillMember = BarobillMember::where('tenant_id', $tenantId)->first();
 
+            // 테넌트별 서버 모드 적용
+            if ($barobillMember && $barobillMember->server_mode) {
+                $this->applyMemberServerMode($barobillMember);
+            }
+
             // 바로빌 사용자 ID 결정
             $userId = $barobillMember?->barobill_id ?? '';
 
@@ -253,6 +258,11 @@ public function transactions(Request $request): JsonResponse
             $barobillMember = BarobillMember::where('tenant_id', $tenantId)->first();
             $userId = $barobillMember?->barobill_id ?? '';
 
+            // 테넌트별 서버 모드 적용
+            if ($barobillMember && $barobillMember->server_mode) {
+                $this->applyMemberServerMode($barobillMember);
+            }
+
             // DB에서 저장된 계정과목 데이터 조회
             $savedData = BankTransaction::getByDateRange($tenantId, $startDate, $endDate, $bankAccountNum ?: null);
 
diff --git a/app/Http/Controllers/Barobill/EcardController.php b/app/Http/Controllers/Barobill/EcardController.php
index 666f4e71..45cc6b44 100644
--- a/app/Http/Controllers/Barobill/EcardController.php
+++ b/app/Http/Controllers/Barobill/EcardController.php
@@ -167,6 +167,13 @@ private function applyMemberServerMode(BarobillMember $member): void
     public function cards(Request $request): JsonResponse
     {
         try {
+            // 테넌트별 서버 모드 적용
+            $tenantId = session('selected_tenant_id', self::HEADQUARTERS_TENANT_ID);
+            $barobillMember = BarobillMember::where('tenant_id', $tenantId)->first();
+            if ($barobillMember && $barobillMember->server_mode) {
+                $this->applyMemberServerMode($barobillMember);
+            }
+
             $availOnly = $request->input('availOnly', 0);
 
             $result = $this->callSoap('GetCardEx2', [
@@ -263,6 +270,11 @@ public function transactions(Request $request): JsonResponse
             $barobillMember = BarobillMember::where('tenant_id', $tenantId)->first();
             $userId = $barobillMember?->barobill_id ?? '';
 
+            // 테넌트별 서버 모드 적용
+            if ($barobillMember && $barobillMember->server_mode) {
+                $this->applyMemberServerMode($barobillMember);
+            }
+
             // 디버그 로그
             Log::info('[ECard] 조회 요청', [
                 'tenantId' => $tenantId,
diff --git a/app/Http/Controllers/Barobill/EtaxController.php b/app/Http/Controllers/Barobill/EtaxController.php
index f1f4e99e..ea36de19 100644
--- a/app/Http/Controllers/Barobill/EtaxController.php
+++ b/app/Http/Controllers/Barobill/EtaxController.php
@@ -193,6 +193,13 @@ public function getInvoices(): JsonResponse
      */
     public function issue(Request $request): JsonResponse
     {
+        // 테넌트별 서버 모드 적용
+        $tenantId = session('selected_tenant_id', self::HEADQUARTERS_TENANT_ID);
+        $barobillMember = BarobillMember::where('tenant_id', $tenantId)->first();
+        if ($barobillMember && $barobillMember->server_mode) {
+            $this->applyMemberServerMode($barobillMember);
+        }
+
         $input = $request->all();
 
         $useRealAPI = $this->soapClient !== null && ($this->isTestMode || !empty($this->certKey));
@@ -261,6 +268,13 @@ public function issue(Request $request): JsonResponse
      */
     public function sendToNts(Request $request): JsonResponse
     {
+        // 테넌트별 서버 모드 적용
+        $tenantId = session('selected_tenant_id', self::HEADQUARTERS_TENANT_ID);
+        $barobillMember = BarobillMember::where('tenant_id', $tenantId)->first();
+        if ($barobillMember && $barobillMember->server_mode) {
+            $this->applyMemberServerMode($barobillMember);
+        }
+
         $invoiceId = $request->input('invoiceId');
 
         // 인보이스 조회
diff --git a/app/Http/Controllers/Barobill/HometaxController.php b/app/Http/Controllers/Barobill/HometaxController.php
index 37063408..2219bf48 100644
--- a/app/Http/Controllers/Barobill/HometaxController.php
+++ b/app/Http/Controllers/Barobill/HometaxController.php
@@ -188,6 +188,11 @@ public function sales(Request $request): JsonResponse
                 ]);
             }
 
+            // 테넌트별 서버 모드 적용
+            if ($barobillMember->server_mode) {
+                $this->applyMemberServerMode($barobillMember);
+            }
+
             $userId = $barobillMember->barobill_id ?? '';
 
             if (empty($userId)) {
@@ -308,6 +313,11 @@ public function purchases(Request $request): JsonResponse
                 ]);
             }
 
+            // 테넌트별 서버 모드 적용
+            if ($barobillMember->server_mode) {
+                $this->applyMemberServerMode($barobillMember);
+            }
+
             $userId = $barobillMember->barobill_id ?? '';
 
             if (empty($userId)) {
@@ -533,6 +543,12 @@ public function diagnose(Request $request): JsonResponse
         try {
             $tenantId = session('selected_tenant_id', self::HEADQUARTERS_TENANT_ID);
             $barobillMember = BarobillMember::where('tenant_id', $tenantId)->first();
+
+            // 테넌트별 서버 모드 적용
+            if ($barobillMember && $barobillMember->server_mode) {
+                $this->applyMemberServerMode($barobillMember);
+            }
+
             $userId = $barobillMember?->barobill_id ?? '';
             $memberCorpNum = $barobillMember?->biz_no ?? '';