diff --git a/Service/ServiceContracts/IAccountingService.cs b/Service/ServiceContracts/IAccountingService.cs
index cfde99dbf..6643d1fd6 100644
--- a/Service/ServiceContracts/IAccountingService.cs
+++ b/Service/ServiceContracts/IAccountingService.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.ServiceModel;
 
 using BS.Shared;
+using BS.Shared.Attributes;
 using BS.Shared.Core;
 using BS.Shared.DataContracts;
 using BS.Shared.DataContracts.GkvAbrechnung;
@@ -140,5 +141,54 @@ namespace BeWo.Service.ServiceContracts
         [FaultContract(typeof(BeWoFault))]
         [OperationContract]
         void StorniereInvoiceBases(List<InvoiceBaseDC> invoices);
-    }
+
+		// -------------------------------------------------------------------------------------------------------------------------------------
+		// -------------------------------------------------------------------------------------------------------------------------------------
+		// -------------------------------------------------------------------------------------------------------------------------------------
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_View)]
+		GkvAbrechnungDC GetGkvAbrechnung(long oid);
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_View)]
+		List<GkvAbrechnungDC> GetAllGkvAbrechnungen();
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_View)]
+		List<GkvAbrechnungDC> GetFilteredGkvAbrechnungen(GkvAbrechnungViewFilterDC gkvAbrechnungViewFilter);
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_View)]
+		string GetProtokollRawDataString(long oid, GkvRawDataType gkvRawData);
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_Create)]
+		GkvAbrechnungCreateResponseDC CreateNewGkvAbrechnung(GkvAbrechnungCreateRequestDC request);
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_Create)]
+		GkvAbrechnungDC UpdateGkvAbrechnung(GkvAbrechnungDC abrechnung);
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_Delete)]
+		void DeleteGkvAbrechnung(GkvAbrechnungDC abrechnung);
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_Send)]
+		GkvAbrechnungSendResponseDC SendNewGkvAbrechnung(GkvAbrechnungSendRequestDC req);
+
+		[FaultContract(typeof(BeWoFault))]
+		[OperationContract]
+		[RequirePermission(UserRightType.Finance_Gkv_View)]
+		GkvAbrechnungGetIKResponseDC SendGetIKRequest(GkvAbrechnungGetIKRequestDC req);
+	}
 }
\ No newline at end of file
diff --git a/Service/ServiceImplementations/AccountingServiceImp.cs b/Service/ServiceImplementations/AccountingServiceImp.cs
index ebe9ce08b..059827acc 100644
--- a/Service/ServiceImplementations/AccountingServiceImp.cs
+++ b/Service/ServiceImplementations/AccountingServiceImp.cs
@@ -28,6 +28,7 @@ using BS.Shared.Extensions;
 using BS.Shared.Exceptions;
 using BS.Shared.AppSender;
 using BeWo.Data.Security;
+using System.Security.Cryptography;
 
 namespace BeWo.Service.ServiceImplementations
 {
@@ -745,5 +746,31 @@ namespace BeWo.Service.ServiceImplementations
 				throw Utils.CreateBeWoFaultException(e);
 			}
 		}
+
+
+
+		// -------------------------------------------------------------------------------------------------------------------------------------
+		// -------------------------------------------------------------------------------------------------------------------------------------
+		// -------------------------------------------------------------------------------------------------------------------------------------
+
+		public GkvAbrechnungDC GetGkvAbrechnung(long oid) => new GkvAccountingServiceImp().GetGkvAbrechnung(oid);
+		public List<GkvAbrechnungDC> GetFilteredGkvAbrechnungen(GkvAbrechnungViewFilterDC gkvAbrechnungViewFilter) => new GkvAccountingServiceImp().GetFilteredGkvAbrechnungen(gkvAbrechnungViewFilter);
+
+		public List<GkvAbrechnungDC> GetAllGkvAbrechnungen() => new GkvAccountingServiceImp().GetAllGkvAbrechnungen();
+		public string GetProtokollRawDataString(long oid, GkvRawDataType gkvRawData) => new GkvAccountingServiceImp().GetProtokollRawDataString(oid, gkvRawData);
+
+		public GkvAbrechnungCreateResponseDC CreateNewGkvAbrechnung(GkvAbrechnungCreateRequestDC request) => new GkvAccountingServiceImp().CreateNewGkvAbrechnung(request);
+		public GkvAbrechnungDC UpdateGkvAbrechnung(GkvAbrechnungDC abrechnung) => new GkvAccountingServiceImp().UpdateGkvAbrechnung(abrechnung);
+		public void DeleteGkvAbrechnung(GkvAbrechnungDC abrechnung) => new GkvAccountingServiceImp().DeleteGkvAbrechnung(abrechnung);
+
+		/// <summary>
+		/// Erstellt GkvTransferProtokoll
+		/// </summary>
+		/// <param name="req"></param>
+		/// <returns></returns>
+		public GkvAbrechnungSendResponseDC SendNewGkvAbrechnung(GkvAbrechnungSendRequestDC req) => new GkvAccountingServiceImp().SendNewGkvAbrechnung(req);
+		public GkvAbrechnungGetIKResponseDC SendGetIKRequest(GkvAbrechnungGetIKRequestDC req) => new GkvAccountingServiceImp().SendGetIKRequest(req);
+
+		public void HandleGkvServerResults(IEnumerable<GkvServerResultDC> results) => new GkvAccountingServiceImp().HandleGkvServerResults(results);
 	}
 }
\ No newline at end of file