diff --git a/database/migrations/2025_12_01_002115_add_tenant_id_to_archived_records.php b/database/migrations/2025_12_01_002115_add_tenant_id_to_archived_records.php
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+++ b/database/migrations/2025_12_01_002115_add_tenant_id_to_archived_records.php
@@ -0,0 +1,43 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     * archived_records 테이블에 tenant_id 컬럼 추가
+     *
+     * NOTE: FK 제약조건 없음 (삭제된 테넌트를 참조할 수 있어야 함)
+     * - 테넌트 삭제 시: tenant_id = 삭제된 테넌트의 ID
+     * - 사용자 삭제 시: tenant_id = 현재 선택된 테넌트 ID (session)
+     */
+    public function up(): void
+    {
+        Schema::table('archived_records', function (Blueprint $table) {
+            $table->unsignedBigInteger('tenant_id')->nullable()->after('record_type');
+            $table->index('tenant_id');
+        });
+
+        // 기존 데이터 처리: tenant 타입의 경우 main_data에서 id 추출
+        DB::statement("
+            UPDATE archived_records
+            SET tenant_id = JSON_UNQUOTE(JSON_EXTRACT(main_data, '$.id'))
+            WHERE record_type = 'tenant' AND tenant_id IS NULL
+        ");
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('archived_records', function (Blueprint $table) {
+            $table->dropIndex(['tenant_id']);
+            $table->dropColumn('tenant_id');
+        });
+    }
+};
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