diff --git a/plugins/Full_CI_ZMQ/EZFIO.cfg b/plugins/Full_CI_ZMQ/EZFIO.cfg
index 26f1a8e5..15ebab6d 100644
--- a/plugins/Full_CI_ZMQ/EZFIO.cfg
+++ b/plugins/Full_CI_ZMQ/EZFIO.cfg
@@ -8,4 +8,31 @@ type: double precision
 doc: Calculated FCI energy + PT2
 interface: ezfio
 
+[iterative_save]
+type: integer
+doc: Save data at each iteration :  1(Append) | 2(Overwrite) | 3(NoSave)
+interface: ezfio,ocaml
+default: 1      
 
+[n_iter]
+interface: ezfio
+doc: number of iterations
+type:integer
+
+[n_det_iter]
+interface: ezfio
+doc: number of determinants at iteration
+type: integer
+size: (full_ci_zmq.n_iter)
+ 
+[energy_iter]
+interface: ezfio
+doc: The energy without a pt2 correction for n_det
+type: double precision 
+size: (full_ci_zmq.n_iter)
+
+[pt2_iter]
+interface: ezfio
+doc: The pt2 correction for n_det
+type: double precision 
+size: (full_ci_zmq.n_iter)
diff --git a/plugins/Full_CI_ZMQ/dump_fci_iterations_value.f90 b/plugins/Full_CI_ZMQ/dump_fci_iterations_value.f90
new file mode 100644
index 00000000..0e7565d8
--- /dev/null
+++ b/plugins/Full_CI_ZMQ/dump_fci_iterations_value.f90
@@ -0,0 +1,83 @@
+subroutine dump_fci_iterations_value(n_determinants,energy,pt2)
+  implicit none
+
+!  Not using an irp.f90 environment because the SAVE statement is needed for simpler code
+
+!  BEGIN_DOC
+!! Output the number of determinants, energy, and pt2 correction at each iteration 
+!  END_DOC
+  integer                        :: n_determinants
+  double precision               :: energy, pt2
+  integer                        :: N_iterations
+  integer, allocatable           :: n_determinants_list(:)
+  double precision, allocatable  :: energy_list(:)
+  double precision, allocatable  :: pt2_list(:)
+  integer                        :: saveMethod 
+  logical                        :: hasIter
+  logical,save                   :: firstAccess=.TRUE. !! every update of firstAccess will be saved
+
+  !!! Check to ensure that we should save iterations (default is Append)
+  ! saveMethod: 1==Append, 2==Overwrite, 3==NoSave
+  call ezfio_get_full_ci_zmq_iterative_save(saveMethod)
+
+  !!! Check we are saving data
+  if (saveMethod/=3) then
+
+     !!! If the iteration number exists get it
+     !!! otherwise set it to zero
+     call ezfio_has_full_ci_zmq_n_iter(hasIter)
+     if (hasIter) then
+         call ezfio_get_full_ci_zmq_n_iter(N_iterations)
+     else
+        N_iterations=0 
+     endif
+
+     !!! If it is append we don't have to do any more checks
+     !!! N_iterations will be correct now. 
+
+     !!! If we should overwrite and this is the first time
+     !!! Then we need to reset N_iterations to zero
+     if ((saveMethod==2).AND.(firstAccess)) then
+        N_iterations=0
+     endif
+     
+     !! Now allocate the array for entire size needed
+     allocate(n_determinants_list(N_iterations+1))
+     allocate(energy_list(N_iterations+1))
+     allocate(pt2_list(N_iterations+1))
+
+     !!! Pull previously written data
+     !!! Unless it is at the beginning of a new/restarted calculation
+     if((hasIter).AND.(N_iterations>0)) then 
+        call ezfio_get_full_ci_zmq_n_det_iter(n_determinants_list(1:N_iterations))
+        call ezfio_get_full_ci_zmq_energy_iter(energy_list(1:N_iterations))
+        call ezfio_get_full_ci_zmq_pt2_iter(pt2_list(1:N_iterations))
+     endif
+
+     !! Now increment to the current iteration
+     N_iterations = N_iterations+1
+
+     !! Add the data from latest iteration 
+     n_determinants_list(N_iterations) = n_determinants
+     energy_list(N_iterations) = energy
+     pt2_list(N_iterations) = pt2 
+
+    ! Reset the iteration number 
+    call ezfio_set_full_ci_zmq_n_iter(N_iterations)
+
+    !!!! Now reset the ezfio values
+    !!!! To include the latest data
+    call ezfio_set_full_ci_zmq_n_det_iter(n_determinants_list)
+    call ezfio_set_full_ci_zmq_energy_iter(energy_list)
+    call ezfio_set_full_ci_zmq_pt2_iter(pt2_list)
+
+    deallocate(n_determinants_list)
+    deallocate(energy_list)
+    deallocate(pt2_list)
+ 
+  endif
+
+  !!! set first access to false
+  !!! it will be saved
+  firstAccess=.FALSE.
+ end subroutine 
diff --git a/plugins/Full_CI_ZMQ/fci_zmq.irp.f b/plugins/Full_CI_ZMQ/fci_zmq.irp.f
index dc9d6d42..80ba5a7b 100644
--- a/plugins/Full_CI_ZMQ/fci_zmq.irp.f
+++ b/plugins/Full_CI_ZMQ/fci_zmq.irp.f
@@ -44,6 +44,7 @@ program fci_zmq
       print *,  'E+PT2    = ', CI_energy(k) + pt2(k)
       print *,  '-----'
     enddo
+    call dump_fci_iterations_value(N_det,CI_energy(1),pt2(1)) ! This call automatically appends data
   endif
   
   
@@ -135,7 +136,7 @@ program fci_zmq
       call save_wavefunction
       call ezfio_set_full_ci_zmq_energy(CI_energy(1))
       call ezfio_set_full_ci_zmq_energy_pt2(CI_energy(1)+pt2(1))
-
+      call dump_fci_iterations_value(N_det,CI_energy(1),pt2(1)) ! This call automatically appends data
     enddo
   endif
 
@@ -144,6 +145,7 @@ program fci_zmq
       call diagonalize_CI
       call save_wavefunction
       call ezfio_set_full_ci_zmq_energy(CI_energy(1))
+      call dump_fci_iterations_value(N_det,CI_energy(1),pt2(1)) ! This call automatically appends data
   endif
 
   if (do_pt2) then
@@ -163,6 +165,7 @@ program fci_zmq
       call ZMQ_selection(0, pt2)      ! Deterministic PT2
     endif
     call ezfio_set_full_ci_zmq_energy_pt2(CI_energy(1)+pt2(1))
+    call dump_fci_iterations_value(N_det,CI_energy(1),pt2(1)) ! This call automatically appends data
   endif