diff --git a/app/Http/Requests/Quote/QuoteStoreRequest.php b/app/Http/Requests/Quote/QuoteStoreRequest.php
index effb09f..c496c26 100644
--- a/app/Http/Requests/Quote/QuoteStoreRequest.php
+++ b/app/Http/Requests/Quote/QuoteStoreRequest.php
@@ -71,6 +71,7 @@ public function rules(): array
             'labor_cost' => 'nullable|numeric|min:0',
             'install_cost' => 'nullable|numeric|min:0',
             'discount_rate' => 'nullable|numeric|min:0|max:100',
+            'discount_amount' => 'nullable|numeric|min:0',
             'total_amount' => 'nullable|numeric|min:0',
 
             // 기타 정보
diff --git a/app/Http/Requests/Quote/QuoteUpdateRequest.php b/app/Http/Requests/Quote/QuoteUpdateRequest.php
index a72bfc2..e9fd9f7 100644
--- a/app/Http/Requests/Quote/QuoteUpdateRequest.php
+++ b/app/Http/Requests/Quote/QuoteUpdateRequest.php
@@ -69,6 +69,7 @@ public function rules(): array
             'labor_cost' => 'nullable|numeric|min:0',
             'install_cost' => 'nullable|numeric|min:0',
             'discount_rate' => 'nullable|numeric|min:0|max:100',
+            'discount_amount' => 'nullable|numeric|min:0',
             'total_amount' => 'nullable|numeric|min:0',
 
             // 기타 정보
diff --git a/app/Services/Quote/QuoteService.php b/app/Services/Quote/QuoteService.php
index 7e5a74a..be699c4 100644
--- a/app/Services/Quote/QuoteService.php
+++ b/app/Services/Quote/QuoteService.php
@@ -222,7 +222,10 @@ public function store(array $data): Quote
             $installCost = (float) ($data['install_cost'] ?? 0);
             $subtotal = $materialCost + $laborCost + $installCost;
             $discountRate = (float) ($data['discount_rate'] ?? 0);
-            $discountAmount = $subtotal * ($discountRate / 100);
+            // 프론트엔드에서 직접 계산한 할인금액이 있으면 사용, 없으면 subtotal에서 계산
+            $discountAmount = isset($data['discount_amount'])
+                ? (float) $data['discount_amount']
+                : $subtotal * ($discountRate / 100);
             $totalAmount = $subtotal - $discountAmount;
 
             // 견적 생성
@@ -318,7 +321,10 @@ public function update(int $id, array $data): Quote
             $installCost = (float) ($data['install_cost'] ?? $quote->install_cost);
             $subtotal = $materialCost + $laborCost + $installCost;
             $discountRate = (float) ($data['discount_rate'] ?? $quote->discount_rate);
-            $discountAmount = $subtotal * ($discountRate / 100);
+            // 프론트엔드에서 직접 계산한 할인금액이 있으면 사용, 없으면 subtotal에서 계산
+            $discountAmount = isset($data['discount_amount'])
+                ? (float) $data['discount_amount']
+                : $subtotal * ($discountRate / 100);
             $totalAmount = $subtotal - $discountAmount;
 
             // 업데이트