diff --git a/docs/options.rst b/docs/options.rst
index bd4009e..be8a260 100644
--- a/docs/options.rst
+++ b/docs/options.rst
@@ -48,3 +48,14 @@ open signup, where all users that do sign up can already log in the system. To d
 .. code-block:: python
 
     c.Authenticator.open_signup = True
+
+
+Ask for extra information on SignUp
+-----------------------------------
+
+Native Authenticator is based on username and password only. But if you need extra information about the users, you can add them on the sign up. For now, you can ask for email by adding the following line:
+
+
+.. code-block:: python
+
+    c.Authenticator.ask_email_on_signup = True
diff --git a/nativeauthenticator/handlers.py b/nativeauthenticator/handlers.py
index 49325e8..4ce6159 100644
--- a/nativeauthenticator/handlers.py
+++ b/nativeauthenticator/handlers.py
@@ -30,7 +30,10 @@ class SignUpHandler(LocalBase):
     """Render the sign in page."""
     async def get(self):
         self._register_template_path()
-        html = self.render_template('signup.html')
+        html = self.render_template(
+            'signup.html',
+            ask_email=self.authenticator.ask_email_on_signup,
+        )
         self.finish(html)
 
     def get_result_message(self, user):
@@ -57,6 +60,7 @@ async def post(self):
 
         html = self.render_template(
             'signup.html',
+            ask_email=self.authenticator.ask_email_on_signup,
             result_message=message,
             alert=alert
         )
@@ -68,8 +72,11 @@ class AuthorizationHandler(LocalBase):
     @admin_only
     async def get(self):
         self._register_template_path()
-        html = self.render_template('autorization-area.html',
-                                    users=self.db.query(UserInfo).all())
+        html = self.render_template(
+            'autorization-area.html',
+            ask_email=self.authenticator.ask_email_on_signup,
+            users=self.db.query(UserInfo).all(),
+        )
         self.finish(html)
 
 
diff --git a/nativeauthenticator/nativeauthenticator.py b/nativeauthenticator/nativeauthenticator.py
index 6c8b934..dfaea85 100644
--- a/nativeauthenticator/nativeauthenticator.py
+++ b/nativeauthenticator/nativeauthenticator.py
@@ -45,6 +45,11 @@ class NativeAuthenticator(Authenticator):
         help=("Allows every user that made sign up to automatically log in "
               "the system without needing admin authorization")
     )
+    ask_email_on_signup = Bool(
+        config=True,
+        default=False,
+        help="Asks for email on signup"
+    )
 
     def __init__(self, add_new_table=True, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -128,7 +133,7 @@ def is_password_strong(self, password):
 
         return all(checks)
 
-    def get_or_create_user(self, username, pw):
+    def get_or_create_user(self, username, pw, **kwargs):
         user = UserInfo.find(self.db, username)
         if user:
             return user
@@ -138,6 +143,7 @@ def get_or_create_user(self, username, pw):
 
         encoded_pw = bcrypt.hashpw(pw.encode(), bcrypt.gensalt())
         infos = {'username': username, 'password': encoded_pw}
+        infos.update(kwargs)
         if username in self.admin_users or self.open_signup:
             infos.update({'is_authorized': True})
 
diff --git a/nativeauthenticator/orm.py b/nativeauthenticator/orm.py
index d173b17..740e235 100644
--- a/nativeauthenticator/orm.py
+++ b/nativeauthenticator/orm.py
@@ -1,9 +1,9 @@
 import bcrypt
+import re
 from jupyterhub.orm import Base
 
-from sqlalchemy import (
-    Boolean, Column, Integer, String
-)
+from sqlalchemy import Boolean, Column, Integer, String
+from sqlalchemy.orm import validates
 
 
 class UserInfo(Base):
@@ -12,6 +12,7 @@ class UserInfo(Base):
     username = Column(String, nullable=False)
     password = Column(String, nullable=False)
     is_authorized = Column(Boolean, default=False)
+    email = Column(String)
 
     @classmethod
     def find(cls, db, username):
@@ -31,3 +32,9 @@ def change_authorization(cls, db, username):
         user.is_authorized = not user.is_authorized
         db.commit()
         return user
+
+    @validates('email')
+    def validate_email(self, key, address):
+        assert re.match(r"^[A-Za-z0-9\.\+_-]+@[A-Za-z0-9\._-]+\.[a-zA-Z]*$",
+                        address)
+        return address
diff --git a/nativeauthenticator/templates/autorization-area.html b/nativeauthenticator/templates/autorization-area.html
index 992f68c..cd09e64 100644
--- a/nativeauthenticator/templates/autorization-area.html
+++ b/nativeauthenticator/templates/autorization-area.html
@@ -10,6 +10,9 @@ <h1>Authorization Area</h1>
       <thead>
         <tr>
           <th>Username</th>
+          {% if ask_email %}
+            <th>Email</th>
+          {% endif %}
           <th>Is Authorized?</th>
         </tr>
       </thead>
@@ -18,6 +21,9 @@ <h1>Authorization Area</h1>
         {% if user.is_authorized %}
         <tr class="success">
           <td>{{ user.username }}</td>
+          {% if ask_email %}
+            <td>{{ user.email }}</td>
+          {% endif %}
           <td>Yes</td>
           <td>
             <a class="btn btn-default" 
@@ -27,6 +33,9 @@ <h1>Authorization Area</h1>
         {% else %}
         <tr>
           <td>{{ user.username }}</td>
+          {% if ask_email %}
+            <td>{{ user.email }}</td>
+          {% endif %}
           <td>No</td>
           <td>
             <a class="btn btn-jupyter" 
diff --git a/nativeauthenticator/templates/signup.html b/nativeauthenticator/templates/signup.html
index 00f8d7e..85e3bc6 100644
--- a/nativeauthenticator/templates/signup.html
+++ b/nativeauthenticator/templates/signup.html
@@ -31,7 +31,19 @@ <h2>
           name="username"
           id="username_input"
           tabindex="2"
+          required
           />
+          {% if ask_email %}
+            <label>Email:</label>
+            <input
+            type=""
+            class="form-control"
+            name="email"
+            id="email_input"
+            tabindex="2"
+            required
+            />
+          {% endif %}
           <label for='password_input'>Password:</label>
           <div class="input-group">
             <input
@@ -40,6 +52,7 @@ <h2>
             name="password"
             id="pwd"
             tabindex="2"
+            required
             />
             <span class="input-group-addon">
               <button style="border:0;" type="button" id="eye">
diff --git a/nativeauthenticator/tests/test_orm.py b/nativeauthenticator/tests/test_orm.py
new file mode 100644
index 0000000..3a1e001
--- /dev/null
+++ b/nativeauthenticator/tests/test_orm.py
@@ -0,0 +1,28 @@
+import pytest
+from jupyterhub.tests.mocking import MockHub
+
+from ..orm import UserInfo
+
+
+@pytest.fixture
+def tmpcwd(tmpdir):
+    tmpdir.chdir()
+
+
+@pytest.fixture
+def app():
+    hub = MockHub()
+    hub.init_db()
+    return hub
+
+
+@pytest.mark.parametrize('email', ['john', 'john@john'])
+def test_validate_method_wrong_email(email, tmpdir, app):
+    with pytest.raises(AssertionError):
+        UserInfo(username='john', password='pwd', email=email)
+
+
+def test_validate_method_correct_email(tmpdir, app):
+    user = UserInfo(username='john', password='pwd', email='john@john.com')
+    app.db.add(user)
+    assert UserInfo.find(app.db, 'john')