diff --git a/apps/registration/forms.py b/apps/registration/forms.py
index ad28483..ac4650b 100644
--- a/apps/registration/forms.py
+++ b/apps/registration/forms.py
@@ -8,7 +8,7 @@ from django.core.exceptions import ValidationError
 from django.forms import FileInput
 from django.utils.translation import gettext_lazy as _
 
-from .models import AdminRegistration, CoachRegistration, StudentRegistration, VolunteerRegistration
+from .models import AdminRegistration, CoachRegistration, Payment, StudentRegistration, VolunteerRegistration
 
 
 class SignupForm(UserCreationForm):
@@ -197,3 +197,34 @@ class AdminRegistrationForm(forms.ModelForm):
     class Meta:
         model = AdminRegistration
         fields = ('role', 'give_contact_to_animath', 'email_confirmed',)
+
+
+class PaymentForm(forms.ModelForm):
+    """
+    Indicate payment information
+    """
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields["valid"].widget.choices[0] = ('unknown', _("Pending"))
+
+    def clean_scholarship_file(self):
+        if "scholarship_file" in self.files:
+            file = self.files["scholarship_file"]
+            if file.size > 2e6:
+                raise ValidationError(_("The uploaded file size must be under 2 Mo."))
+            if file.content_type not in ["application/pdf", "image/png", "image/jpeg"]:
+                raise ValidationError(_("The uploaded file must be a PDF, PNG of JPEG file."))
+            return self.cleaned_data["scholarship_file"]
+
+    def clean(self):
+        cleaned_data = super().clean()
+
+        if "type" in cleaned_data and cleaned_data["type"] == "scholarship" \
+                and "scholarship" not in cleaned_data and not self.instance.scholarship_file:
+            self.add_error("scholarship_file", _("You must upload your scholarship attestation."))
+
+        return cleaned_data
+
+    class Meta:
+        model = Payment
+        fields = ('type', 'scholarship_file', 'additional_information', 'valid',)
diff --git a/apps/registration/models.py b/apps/registration/models.py
index 18dc200..e45d61f 100644
--- a/apps/registration/models.py
+++ b/apps/registration/models.py
@@ -338,6 +338,9 @@ class Payment(models.Model):
         default=False,
     )
 
+    def get_absolute_url(self):
+        return reverse_lazy("registration:user_detail", args=(self.registration.user.id,))
+
     class Meta:
         verbose_name = _("payment")
         verbose_name_plural = _("payments")
diff --git a/apps/registration/templates/registration/payment_form.html b/apps/registration/templates/registration/payment_form.html
new file mode 100644
index 0000000..bd8db0d
--- /dev/null
+++ b/apps/registration/templates/registration/payment_form.html
@@ -0,0 +1,14 @@
+{% extends "base.html" %}
+
+{% load crispy_forms_filters i18n %}
+
+{% block content %}
+    <form method="post"  enctype="multipart/form-data">
+        <div id="form-content">
+            {% csrf_token %}
+            {{ form|crispy }}
+        </div>
+        <button class="btn btn-primary" type="submit">{% trans "Update" %}</button>
+    </form>
+{% endblock content %}
+
diff --git a/apps/registration/templates/registration/user_detail.html b/apps/registration/templates/registration/user_detail.html
index 39be1d4..d7310b8 100644
--- a/apps/registration/templates/registration/user_detail.html
+++ b/apps/registration/templates/registration/user_detail.html
@@ -53,7 +53,7 @@
                     {% if user_object.registration.photo_authorization %}
                         <a href="{{ user_object.registration.photo_authorization.url }}" data-turbolinks="false">{% trans "Download" %}</a>
                     {% endif %}
-                    {% if user_object.pk == user.pk %}
+                    {% if user_object.registration.team and not user_object.registration.team.participation.valid %}
                         <button class="btn btn-primary" data-toggle="modal" data-target="#uploadPhotoAuthorizationModal">{% trans "Replace" %}</button>
                     {% endif %}
                 </dd>
@@ -63,7 +63,7 @@
                     {% if user_object.registration.health_sheet %}
                         <a href="{{ user_object.registration.health_sheet.url }}" data-turbolinks="false">{% trans "Download" %}</a>
                     {% endif %}
-                    {% if user_object.pk == user.pk %}
+                    {% if user_object.registration.team and not user_object.registration.team.participation.valid %}
                         <button class="btn btn-primary" data-toggle="modal" data-target="#uploadHealthSheetModal">{% trans "Replace" %}</button>
                     {% endif %}
                 </dd>
@@ -76,7 +76,7 @@
                         {% if user_object.registration.parental_authorization %}
                             <a href="{{ user_object.registration.parental_authorization.url }}" data-turbolinks="false">{% trans "Download" %}</a>
                         {% endif %}
-                        {% if user_object.pk == user.pk %}
+                        {% if user_object.registration.team and not user_object.registration.team.participation.valid %}
                             <button class="btn btn-primary" data-toggle="modal" data-target="#uploadParentalAuthorizationModal">{% trans "Replace" %}</button>
                         {% endif %}
                     </dd>
@@ -125,6 +125,11 @@
                         {% else %}
                             {{ user_object.registration.payment.get_type_display }}, {% trans "valid:" %} {{ user_object.registration.payment.valid|yesno:yesnodefault }}
                         {% endif %}
+                        {% if user.registration.is_admin or user_object.registration.payment.valid is False %}
+                            <button class="btn-sm btn-secondary" data-toggle="modal" data-target="#updatePaymentModal">
+                                <i class="fas fa-money-bill-wave"></i> {% trans "Update payment" %}
+                            </button>
+                        {% endif %}
                     {% endwith %}
                 </dd>
             </dl>
@@ -145,20 +150,34 @@
     {% url "registration:update_user" pk=user_object.pk as modal_action %}
     {% include "base_modal.html" with modal_id="updateUser" %}
 
-    {% trans "Upload photo authorization" as modal_title %}
-    {% trans "Upload" as modal_button %}
-    {% url "registration:upload_user_photo_authorization" pk=user_object.registration.pk as modal_action %}
-    {% include "base_modal.html" with modal_id="uploadPhotoAuthorization" modal_enctype="multipart/form-data" %}
+    {% if user_object.registration.team and not user_object.registration.team.participation.valid %}
+        {% trans "Upload photo authorization" as modal_title %}
+        {% trans "Upload" as modal_button %}
+        {% url "registration:upload_user_photo_authorization" pk=user_object.registration.pk as modal_action %}
+        {% include "base_modal.html" with modal_id="uploadPhotoAuthorization" modal_enctype="multipart/form-data" %}
 
-    {% trans "Upload health sheet" as modal_title %}
-    {% trans "Upload" as modal_button %}
-    {% url "registration:upload_user_health_sheet" pk=user_object.registration.pk as modal_action %}
-    {% include "base_modal.html" with modal_id="uploadHealthSheet" modal_enctype="multipart/form-data" %}
+        {% trans "Upload health sheet" as modal_title %}
+        {% trans "Upload" as modal_button %}
+        {% url "registration:upload_user_health_sheet" pk=user_object.registration.pk as modal_action %}
+        {% include "base_modal.html" with modal_id="uploadHealthSheet" modal_enctype="multipart/form-data" %}
 
-    {% trans "Upload parental authorization" as modal_title %}
-    {% trans "Upload" as modal_button %}
-    {% url "registration:upload_user_parental_authorization" pk=user_object.registration.pk as modal_action %}
-    {% include "base_modal.html" with modal_id="uploadParentalAuthorization" modal_enctype="multipart/form-data" %}
+        {% trans "Upload parental authorization" as modal_title %}
+        {% trans "Upload" as modal_button %}
+        {% url "registration:upload_user_parental_authorization" pk=user_object.registration.pk as modal_action %}
+        {% include "base_modal.html" with modal_id="uploadParentalAuthorization" modal_enctype="multipart/form-data" %}
+
+        {% trans "Upload parental authorization" as modal_title %}
+        {% trans "Upload" as modal_button %}
+        {% url "registration:upload_user_parental_authorization" pk=user_object.registration.pk as modal_action %}
+        {% include "base_modal.html" with modal_id="uploadParentalAuthorization" modal_enctype="multipart/form-data" %}
+    {% endif %}
+
+    {% if user_object.registration.team.participation.valid %}
+        {% trans "Update payment" as modal_title %}
+        {% trans "Update" as modal_button %}
+        {% url "registration:update_payment" pk=user_object.registration.payment.pk as modal_action %}
+        {% include "base_modal.html" with modal_id="updatePayment" modal_additional_class="modal-xl" modal_enctype="multipart/form-data" %}
+    {% endif %}
 {% endblock %}
 
 {% block extrajavascript %}
@@ -169,21 +188,30 @@
                 if (!modalBody.html().trim())
                     modalBody.load("{% url "registration:update_user" pk=user_object.pk %} #form-content");
             });
-            $('button[data-target="#uploadPhotoAuthorizationModal"]').click(function() {
-                let modalBody = $("#uploadPhotoAuthorizationModal div.modal-body");
-                if (!modalBody.html().trim())
-                    modalBody.load("{% url "registration:upload_user_photo_authorization" pk=user_object.registration.pk %} #form-content");
-            });
-            $('button[data-target="#uploadHealthSheetModal"]').click(function() {
-                let modalBody = $("#uploadHealthSheetModal div.modal-body");
-                if (!modalBody.html().trim())
-                    modalBody.load("{% url "registration:upload_user_health_sheet" pk=user_object.registration.pk %} #form-content");
-            });
-            $('button[data-target="#uploadParentalAuthorizationModal"]').click(function() {
-                let modalBody = $("#uploadParentalAuthorizationModal div.modal-body");
-                if (!modalBody.html().trim())
-                    modalBody.load("{% url "registration:upload_user_parental_authorization" pk=user_object.registration.pk %} #form-content");
-            });
+            {% if user_object.registration.team and not user_object.registration.team.participation.valid %}
+                $('button[data-target="#uploadPhotoAuthorizationModal"]').click(function() {
+                    let modalBody = $("#uploadPhotoAuthorizationModal div.modal-body");
+                    if (!modalBody.html().trim())
+                        modalBody.load("{% url "registration:upload_user_photo_authorization" pk=user_object.registration.pk %} #form-content");
+                });
+                $('button[data-target="#uploadHealthSheetModal"]').click(function() {
+                    let modalBody = $("#uploadHealthSheetModal div.modal-body");
+                    if (!modalBody.html().trim())
+                        modalBody.load("{% url "registration:upload_user_health_sheet" pk=user_object.registration.pk %} #form-content");
+                });
+                $('button[data-target="#uploadParentalAuthorizationModal"]').click(function() {
+                    let modalBody = $("#uploadParentalAuthorizationModal div.modal-body");
+                    if (!modalBody.html().trim())
+                        modalBody.load("{% url "registration:upload_user_parental_authorization" pk=user_object.registration.pk %} #form-content");
+                });
+            {% endif %}
+            {% if user_object.registration.team.participation.valid %}
+                $('button[data-target="#updatePaymentModal"]').click(function() {
+                    let modalBody = $("#updatePaymentModal div.modal-body");
+                    if (!modalBody.html().trim())
+                        modalBody.load("{% url "registration:update_payment" pk=user_object.registration.payment.pk %} #form-content");
+                });
+            {% endif %}
         });
     </script>
 {% endblock %}
diff --git a/apps/registration/urls.py b/apps/registration/urls.py
index 663efa9..e6ec201 100644
--- a/apps/registration/urls.py
+++ b/apps/registration/urls.py
@@ -3,10 +3,10 @@
 
 from django.urls import path
 
-from .views import AddOrganizerView, MyAccountDetailView, ResetAdminView, SignupView, UserDetailView,\
-    UserImpersonateView, UserListView, UserResendValidationEmailView, UserUpdateView, UserUploadHealthSheetView, \
-    UserUploadParentalAuthorizationView, UserUploadPhotoAuthorizationView, UserValidateView, \
-    UserValidationEmailSentView
+from .views import AddOrganizerView, MyAccountDetailView, PaymentUpdateView, ResetAdminView, SignupView, \
+    UserDetailView, UserImpersonateView, UserListView, UserResendValidationEmailView, UserUpdateView, \
+    UserUploadHealthSheetView, UserUploadParentalAuthorizationView, UserUploadPhotoAuthorizationView, \
+    UserValidateView, UserValidationEmailSentView
 
 app_name = "registration"
 
@@ -26,6 +26,7 @@ urlpatterns = [
          name="upload_user_health_sheet"),
     path("user/<int:pk>/upload-parental-authorization/", UserUploadParentalAuthorizationView.as_view(),
          name="upload_user_parental_authorization"),
+    path("update-payment/<int:pk>/", PaymentUpdateView.as_view(), name="update_payment"),
     path("user/<int:pk>/impersonate/", UserImpersonateView.as_view(), name="user_impersonate"),
     path("user/list/", UserListView.as_view(), name="user_list"),
     path("reset-admin/", ResetAdminView.as_view(), name="reset_admin"),
diff --git a/apps/registration/views.py b/apps/registration/views.py
index 37fd404..5b89d56 100644
--- a/apps/registration/views.py
+++ b/apps/registration/views.py
@@ -15,8 +15,7 @@ from django.shortcuts import redirect, resolve_url
 from django.template.loader import render_to_string
 from django.urls import reverse_lazy
 from django.utils.crypto import get_random_string
-from django.utils.encoding import force_bytes
-from django.utils.http import urlsafe_base64_decode, urlsafe_base64_encode
+from django.utils.http import urlsafe_base64_decode
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import CreateView, DetailView, RedirectView, TemplateView, UpdateView, View
 from django_tables2 import SingleTableView
@@ -26,9 +25,9 @@ from tfjm.tokens import email_validation_token
 from tfjm.views import AdminMixin, UserMixin, VolunteerMixin
 
 from .forms import AddOrganizerForm, AdminRegistrationForm, CoachRegistrationForm, HealthSheetForm, \
-    ParentalAuthorizationForm, PhotoAuthorizationForm, SignupForm, StudentRegistrationForm, UserForm, \
+    ParentalAuthorizationForm, PaymentForm, PhotoAuthorizationForm, SignupForm, StudentRegistrationForm, UserForm, \
     VolunteerRegistrationForm
-from .models import ParticipantRegistration, Registration, StudentRegistration
+from .models import ParticipantRegistration, Payment, Registration, StudentRegistration
 from .tables import RegistrationTable
 
 
@@ -381,6 +380,31 @@ class UserUploadParentalAuthorizationView(UserMixin, UpdateView):
         return reverse_lazy("registration:user_detail", args=(self.object.user.pk,))
 
 
+class PaymentUpdateView(LoginRequiredMixin, UpdateView):
+    model = Payment
+    form_class = PaymentForm
+
+    def dispatch(self, request, *args, **kwargs):
+        if not self.request.user.is_authenticated or \
+                not self.request.user.registration.is_admin \
+                and (self.request.user != self.get_object().registration.user
+                     or self.get_object().valid is not False):
+            return self.handle_no_permission()
+        return super().dispatch(request, *args, **kwargs)
+
+    def get_form(self, form_class=None):
+        form = super().get_form(form_class)
+        if not self.request.user.registration.is_admin:
+            del form.fields["type"].widget.choices[-1]
+            del form.fields["valid"]
+        return form
+
+    def form_valid(self, form):
+        if not self.request.user.registration.is_admin:
+            form.instance.valid = None
+        return super().form_valid(form)
+
+
 class PhotoAuthorizationView(LoginRequiredMixin, View):
     """
     Display the sent photo authorization.