diff --git a/Bank/BankContracts/BankContracts.csproj b/Bank/BankContracts/BankContracts.csproj
index 88ca97c..ddaf3cb 100644
--- a/Bank/BankContracts/BankContracts.csproj
+++ b/Bank/BankContracts/BankContracts.csproj
@@ -14,7 +14,6 @@
 
   <ItemGroup>
     <ProjectReference Include="..\BankDataModels\BankDataModels.csproj" />
-    <Folder Include="StoragesContracts\" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/Bank/BankContracts/BusinessLogicsContracts/IAccountLogic.cs b/Bank/BankContracts/BusinessLogicsContracts/IAccountLogic.cs
new file mode 100644
index 0000000..514d1fb
--- /dev/null
+++ b/Bank/BankContracts/BusinessLogicsContracts/IAccountLogic.cs
@@ -0,0 +1,20 @@
+using BankContracts.BindingModels;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankContracts.BusinessLogicsContracts
+{
+    public interface IAccountLogic
+    {
+        List<AccountViewModel>? ReadList(AccountSearchModel? model);
+        AccountViewModel? ReadElement(AccountSearchModel model);
+        bool Create(AccountBindingModel model);
+        bool Update(AccountBindingModel model);
+        bool Delete(AccountBindingModel model);
+    }
+}
diff --git a/Bank/BankContracts/BusinessLogicsContracts/IManagerLogic.cs b/Bank/BankContracts/BusinessLogicsContracts/IManagerLogic.cs
new file mode 100644
index 0000000..113789d
--- /dev/null
+++ b/Bank/BankContracts/BusinessLogicsContracts/IManagerLogic.cs
@@ -0,0 +1,20 @@
+using BankContracts.BindingModels;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankContracts.BusinessLogicsContracts
+{
+    public interface IManagerLogic
+    {
+        List<ManagerViewModel>? ReadList(ManagerSearchModel? model);
+        ManagerViewModel? ReadElement(ManagerSearchModel model);
+        bool Create(ManagerBindingModel model);
+        bool Update(ManagerBindingModel model);
+        bool Delete(ManagerBindingModel model);
+    }
+}
diff --git a/Bank/BankContracts/BusinessLogicsContracts/ITransferLogic.cs b/Bank/BankContracts/BusinessLogicsContracts/ITransferLogic.cs
new file mode 100644
index 0000000..d6da3e8
--- /dev/null
+++ b/Bank/BankContracts/BusinessLogicsContracts/ITransferLogic.cs
@@ -0,0 +1,20 @@
+using BankContracts.BindingModels;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankContracts.BusinessLogicsContracts
+{
+    public interface ITransferLogic
+    {
+        List<TransferViewModel>? ReadList(TransferSearchModel? model);
+        TransferViewModel? ReadElement(TransferSearchModel model);
+        bool Create(TransferBindingModel model);
+        bool Update(TransferBindingModel model);
+        bool Delete(TransferBindingModel model);
+    }
+}
diff --git a/Bank/BankContracts/BusinessLogicsContracts/IWithdrawalLogic.cs b/Bank/BankContracts/BusinessLogicsContracts/IWithdrawalLogic.cs
new file mode 100644
index 0000000..77b6ac9
--- /dev/null
+++ b/Bank/BankContracts/BusinessLogicsContracts/IWithdrawalLogic.cs
@@ -0,0 +1,20 @@
+using BankContracts.BindingModels;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankContracts.BusinessLogicsContracts
+{
+    public interface IWithdrawalLogic
+    {
+        List<WithdrawalViewModel>? ReadList(WithdrawalSearchModel? model);
+        WithdrawalViewModel? ReadElement(WithdrawalSearchModel model);
+        bool Create(WithdrawalBindingModel model);
+        bool Update(WithdrawalBindingModel model);
+        bool Delete(WithdrawalBindingModel model);
+    }
+}
diff --git a/Bank/BankContracts/StoragesContracts/IAccountStorage.cs b/Bank/BankContracts/StoragesContracts/IAccountStorage.cs
new file mode 100644
index 0000000..7a03c5a
--- /dev/null
+++ b/Bank/BankContracts/StoragesContracts/IAccountStorage.cs
@@ -0,0 +1,21 @@
+using BankContracts.BindingModels;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankContracts.StoragesContracts
+{
+    public interface IAccountStorage
+    {
+        List<AccountViewModel> GetFullList();
+        List<AccountViewModel> GetFilteredList(AccountSearchModel model);
+        AccountViewModel? GetElement(AccountSearchModel model);
+        AccountViewModel? Insert(AccountBindingModel model);
+        AccountViewModel? Update(AccountBindingModel model);
+        AccountViewModel? Delete(AccountBindingModel model);
+    }
+}
diff --git a/Bank/BankContracts/StoragesContracts/IManagerStorage.cs b/Bank/BankContracts/StoragesContracts/IManagerStorage.cs
new file mode 100644
index 0000000..0c10352
--- /dev/null
+++ b/Bank/BankContracts/StoragesContracts/IManagerStorage.cs
@@ -0,0 +1,21 @@
+using BankContracts.BindingModels;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankContracts.StoragesContracts
+{
+    public interface IManagerStorage
+    {
+        List<ManagerViewModel> GetFullList();
+        List<ManagerViewModel> GetFilteredList(ManagerSearchModel model);
+        ManagerViewModel? GetElement(ManagerSearchModel model);
+        ManagerViewModel? Insert(ManagerBindingModel model);
+        ManagerViewModel? Update(ManagerBindingModel model);
+        ManagerViewModel? Delete(ManagerBindingModel model);
+    }
+}
diff --git a/Bank/BankContracts/StoragesContracts/ITransferStorage.cs b/Bank/BankContracts/StoragesContracts/ITransferStorage.cs
new file mode 100644
index 0000000..c1d329e
--- /dev/null
+++ b/Bank/BankContracts/StoragesContracts/ITransferStorage.cs
@@ -0,0 +1,21 @@
+using BankContracts.BindingModels;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankContracts.StoragesContracts
+{
+    public interface ITransferStorage
+    {
+        List<WithdrawalViewModel> GetFullList();
+        List<WithdrawalViewModel> GetFilteredList(WithdrawalSearchModel model);
+        WithdrawalViewModel? GetElement(WithdrawalSearchModel model);
+        WithdrawalViewModel? Insert(WithdrawalBindingModel model);
+        WithdrawalViewModel? Update(WithdrawalBindingModel model);
+        WithdrawalViewModel? Delete(WithdrawalBindingModel model);
+    }
+}
diff --git a/Bank/BankContracts/StoragesContracts/IWithdrawalStorage.cs b/Bank/BankContracts/StoragesContracts/IWithdrawalStorage.cs
new file mode 100644
index 0000000..515e32d
--- /dev/null
+++ b/Bank/BankContracts/StoragesContracts/IWithdrawalStorage.cs
@@ -0,0 +1,21 @@
+using BankContracts.BindingModels;
+using BankContracts.SearchModels;
+using BankContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace BankContracts.StoragesContracts
+{
+    public interface IWithdrawalStorage
+    {
+        List<WithdrawalViewModel> GetFullList();
+        List<WithdrawalViewModel> GetFilteredList(WithdrawalSearchModel model);
+        WithdrawalViewModel? GetElement(WithdrawalSearchModel model);
+        WithdrawalViewModel? Insert(WithdrawalBindingModel model);
+        WithdrawalViewModel? Update(WithdrawalBindingModel model);
+        WithdrawalViewModel? Delete(WithdrawalBindingModel model);
+    }
+}