diff --git a/app/app/Exceptions/Billing/InsufficientBalanceException.php b/app/app/Exceptions/Billing/InsufficientBalanceException.php
index 4a7ad45c..47882cc1 100644
--- a/app/app/Exceptions/Billing/InsufficientBalanceException.php
+++ b/app/app/Exceptions/Billing/InsufficientBalanceException.php
@@ -5,27 +5,30 @@ declare(strict_types=1);
 namespace App\Exceptions\Billing;
 
 use RuntimeException;
+use Throwable;
 
 /**
- * Выбрасывается LedgerService::chargeForDelivery, когда tenant не имеет
- * ни prepaid-лидов (balance_leads >= 1), ни рублей под текущую tier-цену
- * (balance_rub * 100 >= priceKopecks).
+ * Выбрасывается LedgerService::chargeForDelivery, когда у tenant нет
+ * рублей под текущую tier-цену (balance_rub * 100 < priceKopecks).
  *
  * Ловится в RouteSupplierLeadJob::createDealCopyForProject — инициирует
  * auto-pause flow (см. spec §4.2).
+ *
+ * Billing v2 Spec A: prepaid-лиды убраны, поэтому balance_leads больше не отражается
+ * в сообщении/полях; источник — единый ₽-баланс.
  */
 final class InsufficientBalanceException extends RuntimeException
 {
     public function __construct(
         public readonly int $priceKopecks,
         public readonly string $balanceRub,
-        public readonly int $balanceLeads,
-        ?\Throwable $previous = null,
+        ?Throwable $previous = null,
     ) {
         parent::__construct(
             sprintf(
-                'Insufficient balance: price_kopecks=%d, balance_rub=%s, balance_leads=%d',
-                $priceKopecks, $balanceRub, $balanceLeads,
+                'Insufficient balance: price_kopecks=%d, balance_rub=%s',
+                $priceKopecks,
+                $balanceRub,
             ),
             previous: $previous,
         );
diff --git a/app/app/Jobs/RouteSupplierLeadJob.php b/app/app/Jobs/RouteSupplierLeadJob.php
index 4de6e9fe..111bef74 100644
--- a/app/app/Jobs/RouteSupplierLeadJob.php
+++ b/app/app/Jobs/RouteSupplierLeadJob.php
@@ -384,7 +384,6 @@ class RouteSupplierLeadJob implements ShouldQueue
             'supplier_lead_id' => $lead->id,
             'price_kopecks' => $e->priceKopecks,
             'balance_rub' => $e->balanceRub,
-            'balance_leads' => $e->balanceLeads,
         ]);
     }
 
diff --git a/app/app/Services/Billing/LedgerService.php b/app/app/Services/Billing/LedgerService.php
index 9c6658e0..9638e77d 100644
--- a/app/app/Services/Billing/LedgerService.php
+++ b/app/app/Services/Billing/LedgerService.php
@@ -129,7 +129,6 @@ final class LedgerService
         throw new InsufficientBalanceException(
             priceKopecks: $priceKopecks,
             balanceRub: (string) $tenant->balance_rub,
-            balanceLeads: (int) $tenant->balance_leads,
         );
     }
 
diff --git a/app/tests/Unit/Exceptions/InsufficientBalanceExceptionTest.php b/app/tests/Unit/Exceptions/InsufficientBalanceExceptionTest.php
new file mode 100644
index 00000000..5cc2ebc5
--- /dev/null
+++ b/app/tests/Unit/Exceptions/InsufficientBalanceExceptionTest.php
@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+use App\Exceptions\Billing\InsufficientBalanceException;
+
+it('exposes priceKopecks and balanceRub but no balanceLeads', function () {
+    $e = new InsufficientBalanceException(
+        priceKopecks: 12000,
+        balanceRub: '50.00',
+    );
+
+    expect($e->priceKopecks)->toBe(12000);
+    expect($e->balanceRub)->toBe('50.00');
+    expect(property_exists($e, 'balanceLeads'))->toBeFalse();
+});
+
+it('formats message without balance_leads', function () {
+    $e = new InsufficientBalanceException(
+        priceKopecks: 12000,
+        balanceRub: '50.00',
+    );
+
+    expect($e->getMessage())->not->toContain('balance_leads');
+    expect($e->getMessage())->toContain('12000');
+    expect($e->getMessage())->toContain('50.00');
+});