diff --git a/invenio_userprofiles/config.py b/invenio_userprofiles/config.py
index fb3e078..7b1cbd6 100644
--- a/invenio_userprofiles/config.py
+++ b/invenio_userprofiles/config.py
@@ -8,6 +8,8 @@
 
 """Default configuration."""
 
+from .forms import ProfileForm
+
 USERPROFILES = True
 """Enable or disable module extensions."""
 
@@ -31,3 +33,6 @@
 
 USERPROFILES_READ_ONLY = False
 """Make the user profiles read-only."""
+
+USERPROFILES_FORM_CLASS = ProfileForm
+"""Default user profiles form class."""
diff --git a/invenio_userprofiles/ext.py b/invenio_userprofiles/ext.py
index d0114e9..06aee47 100644
--- a/invenio_userprofiles/ext.py
+++ b/invenio_userprofiles/ext.py
@@ -8,7 +8,7 @@
 # under the terms of the MIT License; see LICENSE file for more details.
 
 """User profiles module for Invenio."""
-
+from flask import current_app
 from flask_menu import current_menu
 from invenio_i18n import LazyString
 from invenio_i18n import lazy_gettext as _
@@ -95,10 +95,13 @@ def init_common(app):
     """Post initialization."""
     if app.config["USERPROFILES_EXTEND_SECURITY_FORMS"]:
         security_ext = app.extensions["security"]
+        UserProfileForm = app.config.get("USERPROFILES_FORM_CLASS")
         security_ext.confirm_register_form = confirm_register_form_factory(
-            security_ext.confirm_register_form
+            security_ext.confirm_register_form, UserProfileForm
+        )
+        security_ext.register_form = register_form_factory(
+            security_ext.register_form, UserProfileForm
         )
-        security_ext.register_form = register_form_factory(security_ext.register_form)
 
 
 def init_menu(app):
diff --git a/invenio_userprofiles/forms.py b/invenio_userprofiles/forms.py
index baf49d7..9769eea 100644
--- a/invenio_userprofiles/forms.py
+++ b/invenio_userprofiles/forms.py
@@ -123,37 +123,42 @@ def populate_obj(self, user):
         super().populate_obj(user)
 
 
-class EmailProfileForm(ProfileForm):
-    """Form to allow editing of email address."""
+def create_email_profile_form(UserProfileForm):
+    """Factory function to create EmailProfileForm inheriting from UserProfileForm."""
+
+    class EmailProfileForm(UserProfileForm):
+        """Form to allow editing of email address."""
+
+        email = StringField(
+            # NOTE: Form field label
+            _("Email address"),
+            filters=[
+                lambda x: x.lower() if x is not None else x,
+            ],
+            validators=[
+                email_required,
+                current_user_email,
+                email_validator,
+                unique_user_email,
+            ],
+        )
 
-    email = StringField(
-        # NOTE: Form field label
-        _("Email address"),
-        filters=[
-            lambda x: x.lower() if x is not None else x,
-        ],
-        validators=[
-            email_required,
-            current_user_email,
-            email_validator,
-            unique_user_email,
-        ],
-    )
+        email_repeat = StringField(
+            # NOTE: Form field label
+            _("Re-enter email address"),
+            # NOTE: Form field help text
+            description=_("Please re-enter your email address."),
+            filters=[
+                lambda x: x.lower() if x else x,
+            ],
+            validators=[
+                email_required,
+                # NOTE: Form validation error.
+                EqualTo("email", message=_("Email addresses do not match.")),
+            ],
+        )
 
-    email_repeat = StringField(
-        # NOTE: Form field label
-        _("Re-enter email address"),
-        # NOTE: Form field help text
-        description=_("Please re-enter your email address."),
-        filters=[
-            lambda x: x.lower() if x else x,
-        ],
-        validators=[
-            email_required,
-            # NOTE: Form validation error.
-            EqualTo("email", message=_("Email addresses do not match.")),
-        ],
-    )
+    return EmailProfileForm
 
 
 class VerificationForm(FlaskForm):
@@ -163,10 +168,10 @@ class VerificationForm(FlaskForm):
     send_verification_email = SubmitField(_("Resend verification email"))
 
 
-def register_form_factory(Form):
+def register_form_factory(Form, UserProfileForm):
     """Factory for creating an extended user registration form."""
 
-    class CsrfDisabledProfileForm(ProfileForm):
+    class CsrfDisabledProfileForm(UserProfileForm):
         """Subclass of ProfileForm to disable CSRF token in the inner form.
 
         This class will always be a inner form field of the parent class
@@ -252,10 +257,10 @@ def populate_obj(self, user):
         super().populate_obj(user)
 
 
-def confirm_register_form_factory(Form):
+def confirm_register_form_factory(Form, UserProfileForm):
     """Factory for creating a confirm register form with UserProfile fields."""
 
-    class CsrfDisabledProfileForm(ProfileForm):
+    class CsrfDisabledProfileForm(UserProfileForm):
         """Subclass of ProfileForm to disable CSRF token in the inner form.
 
         This class will always be an inner form field of the parent class
diff --git a/invenio_userprofiles/views.py b/invenio_userprofiles/views.py
index b5ce4ed..ba13d47 100644
--- a/invenio_userprofiles/views.py
+++ b/invenio_userprofiles/views.py
@@ -26,7 +26,7 @@
 from invenio_db import db
 from invenio_i18n import lazy_gettext as _
 
-from .forms import EmailProfileForm, PreferencesForm, ProfileForm, VerificationForm
+from .forms import PreferencesForm, VerificationForm, create_email_profile_form
 from .models import UserProfileProxy
 
 
@@ -92,6 +92,8 @@ def profile():
 
 def profile_form_factory():
     """Create a profile form."""
+    UserProfileForm = current_app.config.get("USERPROFILES_FORM_CLASS")
+    EmailProfileForm = create_email_profile_form(UserProfileForm)
     if current_app.config["USERPROFILES_EMAIL_ENABLED"]:
         return EmailProfileForm(
             formdata=None,
@@ -99,7 +101,7 @@ def profile_form_factory():
             prefix="profile",
         )
     else:
-        return ProfileForm(
+        return UserProfileForm(
             formdata=None,
             obj=current_user,
             prefix="profile",
diff --git a/tests/test_forms.py b/tests/test_forms.py
index 5292ee9..29ca53f 100644
--- a/tests/test_forms.py
+++ b/tests/test_forms.py
@@ -9,6 +9,7 @@
 """Tests for user profile forms."""
 
 from invenio_userprofiles.forms import (
+    ProfileForm,
     _update_with_csrf_disabled,
     confirm_register_form_factory,
     confirm_register_form_preferences_factory,
@@ -56,8 +57,8 @@ def test_confirm_register_form_preferences_factory_no_csrf(app):
     """Test CSRF token is not in confirm form and not in inner forms."""
     security = app.extensions["security"]
 
-    def factory_profile_preferences(Form):
-        ProfileForm = confirm_register_form_factory(Form)
+    def factory_profile_preferences(Form, UserProfileForm):
+        ProfileForm = confirm_register_form_factory(Form, UserProfileForm)
         return confirm_register_form_preferences_factory(ProfileForm)
 
     rf = _get_form(app, security.confirm_register_form, factory_profile_preferences)
@@ -116,7 +117,7 @@ class AForm(parent_form):
     with app.test_request_context():
         extra = _update_with_csrf_disabled() if force_disable_csrf else {}
 
-        RF = factory_method(AForm)
+        RF = factory_method(AForm, ProfileForm)
         rf = RF(**extra)
 
         rf.profile.username.data = "my username"