diff --git a/database/migrations/2026_02_06_095159_create_barobill_bank_transaction_overrides_table.php b/database/migrations/2026_02_06_095159_create_barobill_bank_transaction_overrides_table.php
new file mode 100644
index 0000000..ec43c8e
--- /dev/null
+++ b/database/migrations/2026_02_06_095159_create_barobill_bank_transaction_overrides_table.php
@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('barobill_bank_transaction_overrides', function (Blueprint $table) {
+            $table->id();
+            $table->unsignedBigInteger('tenant_id')->comment('테넌트 ID');
+            $table->string('unique_key', 100)->comment('거래 고유키 (계좌번호|거래일시|입금|출금|잔액)');
+            $table->string('modified_summary', 200)->nullable()->comment('수정된 적요');
+            $table->string('modified_cast', 200)->nullable()->comment('수정된 내용');
+            $table->timestamps();
+
+            // 복합 유니크 인덱스 (테넌트별 거래 고유키)
+            $table->unique(['tenant_id', 'unique_key'], 'bb_trans_override_unique');
+
+            // 조회용 인덱스
+            $table->index('tenant_id', 'bb_trans_override_tenant_idx');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('barobill_bank_transaction_overrides');
+    }
+};