diff --git a/app/Http/Controllers/Finance/JournalEntryController.php b/app/Http/Controllers/Finance/JournalEntryController.php
index cd03b184..358f353c 100644
--- a/app/Http/Controllers/Finance/JournalEntryController.php
+++ b/app/Http/Controllers/Finance/JournalEntryController.php
@@ -378,16 +378,23 @@ public function bankTransactions(Request $request): JsonResponse
             $accountNum = $request->input('accountNum', '');
 
             // barobill_bank_transactions 테이블에서 직접 조회
-            $query = BankTransaction::where('tenant_id', $tenantId)
-                ->whereBetween('trans_date', [$startDate, $endDate])
-                ->orderByDesc('trans_date')
-                ->orderByDesc('trans_time');
+            // 같은 거래가 잔액(balance)만 다르게 중복 저장된 경우 최신 건만 사용
+            $dedupQuery = BankTransaction::where('tenant_id', $tenantId)
+                ->whereBetween('trans_date', [$startDate, $endDate]);
 
             if (!empty($accountNum)) {
-                $query->where('bank_account_num', str_replace('-', '', $accountNum));
+                $dedupQuery->where('bank_account_num', str_replace('-', '', $accountNum));
             }
 
-            $transactions = $query->get();
+            $latestIds = $dedupQuery
+                ->selectRaw('MAX(id) as id')
+                ->groupBy('bank_account_num', 'trans_dt', 'deposit', 'withdraw')
+                ->pluck('id');
+
+            $transactions = BankTransaction::whereIn('id', $latestIds)
+                ->orderByDesc('trans_date')
+                ->orderByDesc('trans_time')
+                ->get();
 
             // 로그 데이터 변환
             $logs = $transactions->map(function ($tx) {