diff --git a/Company.Domain/InstitutionContractAgg/InstitutionContract.cs b/Company.Domain/InstitutionContractAgg/InstitutionContract.cs
index 603fb186..b8880240 100644
--- a/Company.Domain/InstitutionContractAgg/InstitutionContract.cs
+++ b/Company.Domain/InstitutionContractAgg/InstitutionContract.cs
@@ -98,7 +98,7 @@ public class InstitutionContract : EntityBase
     // مبلغ قرارداد
     public double ContractAmount { get; private set; }
 
-    public double ContractAmountWithTax => !IsOldContract && IsInstallment ? ContractAmount + ContractAmountTax
+    public double ContractAmountWithTax => !IsOldContract  ? ContractAmount + ContractAmountTax
         : ContractAmount;
     
     public double ContractAmountTax => ContractAmount*0.10;