diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
index f1a59a168..f49fefd18 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/ResourceAllocation.java
@@ -371,6 +371,12 @@ public abstract class ResourceAllocation<T extends DayAssignment> extends
                     allocations);
             allocator.allocateUntil(endExclusive);
         }
+
+        public void allocateFromEndUntil(LocalDate start) {
+            AllocatorForTaskDurationAndSpecifiedResourcesPerDay allocator = new AllocatorForTaskDurationAndSpecifiedResourcesPerDay(
+                    allocations);
+            allocator.allocateFromEndUntil(start);
+        }
     }
 
     public static HoursAllocationSpecified allocatingHours(
@@ -418,6 +424,15 @@ public abstract class ResourceAllocation<T extends DayAssignment> extends
             }
         }
 
+        public void allocateFromEndUntil(LocalDate start) {
+            Validate.notNull(start);
+            Validate.isTrue(start.isBefore(task.getEndAsLocalDate()));
+            for (HoursModification each : hoursModifications) {
+                each.allocateFromEndUntil(start);
+            }
+
+        }
+
     }
 
     private Task task;
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/AllocatorForTaskDurationAndSpecifiedResourcesPerDay.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/AllocatorForTaskDurationAndSpecifiedResourcesPerDay.java
index a15a415f7..28f953099 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/AllocatorForTaskDurationAndSpecifiedResourcesPerDay.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/AllocatorForTaskDurationAndSpecifiedResourcesPerDay.java
@@ -44,4 +44,10 @@ public class AllocatorForTaskDurationAndSpecifiedResourcesPerDay {
             allocation.applyAllocationUntil(endExclusive);
         }
     }
+
+    public void allocateFromEndUntil(LocalDate start) {
+        for (ResourcesPerDayModification allocation : allocations) {
+            allocation.applyAllocationFromEndUntil(start);
+        }
+    }
 }
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/HoursModification.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/HoursModification.java
index ca3737395..c1a45b6a0 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/HoursModification.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/HoursModification.java
@@ -54,6 +54,13 @@ public abstract class HoursModification extends AllocationModification {
                              .fromStartUntil(end)
                              .allocateHours(getHours());
         }
+
+        @Override
+        public void allocateFromEndUntil(LocalDate start) {
+            genericAllocation.forResources(getResources())
+                             .fromEndUntil(start)
+                             .allocateHours(getHours());
+        }
     }
 
     private static class OnSpecificAllocation extends HoursModification {
@@ -71,6 +78,12 @@ public abstract class HoursModification extends AllocationModification {
             specific.fromStartUntil(end)
                     .allocateHours(getHours());
         }
+
+        @Override
+        public void allocateFromEndUntil(LocalDate start) {
+            specific.fromEndUntil(start)
+                    .allocateHours(getHours());
+        }
     }
 
     public static HoursModification create(
@@ -118,6 +131,8 @@ public abstract class HoursModification extends AllocationModification {
 
     public abstract void allocateUntil(LocalDate end);
 
+    public abstract void allocateFromEndUntil(LocalDate start);
+
     public int getHours() {
         return hours;
     }
diff --git a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/ResourcesPerDayModification.java b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/ResourcesPerDayModification.java
index 76309a9a5..363e0e87b 100644
--- a/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/ResourcesPerDayModification.java
+++ b/navalplanner-business/src/main/java/org/navalplanner/business/planner/entities/allocationalgorithms/ResourcesPerDayModification.java
@@ -74,6 +74,12 @@ public abstract class ResourcesPerDayModification extends
                     .resourcesPerDayUntil(endExclusive).allocate(getGoal());
         }
 
+        @Override
+        public void applyAllocationFromEndUntil(LocalDate start) {
+            genericAllocation.forResources(getResources())
+                    .resourcesPerDayFromEndUntil(start).allocate(getGoal());
+        }
+
         @Override
         public List<DayAssignment> createAssignmentsAtDay(PartialDay day,
                 EffortDuration limit) {
@@ -141,6 +147,12 @@ public abstract class ResourcesPerDayModification extends
                     getGoal());
         }
 
+        @Override
+        public void applyAllocationFromEndUntil(LocalDate start) {
+            resourceAllocation.resourcesPerDayFromEndUntil(start).allocate(
+                    getGoal());
+        }
+
         @Override
         public List<DayAssignment> createAssignmentsAtDay(PartialDay day,
                 EffortDuration limit) {
@@ -238,6 +250,8 @@ public abstract class ResourcesPerDayModification extends
 
     public abstract void applyAllocationUntil(LocalDate endExclusive);
 
+    public abstract void applyAllocationFromEndUntil(LocalDate start);
+
     public abstract List<DayAssignment> createAssignmentsAtDay(PartialDay day,
             EffortDuration limit);