diff --git a/database/migrations/2026_02_15_100000_add_group_commission_support.php b/database/migrations/2026_02_15_100000_add_group_commission_support.php
new file mode 100644
index 0000000..79d0e2e
--- /dev/null
+++ b/database/migrations/2026_02_15_100000_add_group_commission_support.php
@@ -0,0 +1,53 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        // sales_partners 테이블에 유치 파트너 컬럼 추가
+        Schema::table('sales_partners', function (Blueprint $table) {
+            $table->unsignedBigInteger('referrer_partner_id')->nullable()->after('notes')
+                ->comment('이 단체를 유치한 영업파트너 ID');
+            $table->foreign('referrer_partner_id')->references('id')->on('sales_partners')->nullOnDelete();
+        });
+
+        // sales_commissions 테이블에 유치수당 관련 컬럼 추가
+        Schema::table('sales_commissions', function (Blueprint $table) {
+            $table->unsignedBigInteger('referrer_partner_id')->nullable()->after('manager_user_id')
+                ->comment('유치수당 받을 파트너 ID');
+            $table->decimal('referrer_rate', 5, 2)->default(0)->after('referrer_partner_id')
+                ->comment('유치 수당률 (%)');
+            $table->decimal('referrer_commission', 14, 2)->default(0)->after('referrer_rate')
+                ->comment('유치 수당액');
+            $table->date('first_referrer_paid_at')->nullable()->after('referrer_commission')
+                ->comment('1차 유치수당 지급일');
+            $table->date('second_referrer_paid_at')->nullable()->after('first_referrer_paid_at')
+                ->comment('2차 유치수당 지급일');
+
+            $table->foreign('referrer_partner_id')->references('id')->on('sales_partners')->nullOnDelete();
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::table('sales_commissions', function (Blueprint $table) {
+            $table->dropForeign(['referrer_partner_id']);
+            $table->dropColumn([
+                'referrer_partner_id',
+                'referrer_rate',
+                'referrer_commission',
+                'first_referrer_paid_at',
+                'second_referrer_paid_at',
+            ]);
+        });
+
+        Schema::table('sales_partners', function (Blueprint $table) {
+            $table->dropForeign(['referrer_partner_id']);
+            $table->dropColumn('referrer_partner_id');
+        });
+    }
+};