diff --git a/c3l_membership/forms.py b/c3l_membership/forms.py
new file mode 100644
--- /dev/null
+++ b/c3l_membership/forms.py
@@ -0,0 +1,94 @@
+from datetime import date
+
+from flask_wtf import Form
+from wtforms import BooleanField, RadioField, StringField, SubmitField
+from wtforms.fields.html5 import DateField
+from wtforms.validators import Email, InputRequired, Length, Optional, Required
+
+
+class MembershipForm(Form):
+
+    username = StringField(
+        "Username",
+        validators=[InputRequired("This field is required!"), Length(max=255)],
+    )
+    email = StringField(
+        "E-Mail", validators=[InputRequired("This field is required!"), Email()]
+    )
+    fullname = StringField(
+        "Full Name",
+        validators=[InputRequired("This field is required!"), Length(max=65536)],
+    )
+
+    membership = RadioField(
+        "Membership Plan",
+        validators=[InputRequired("Please select one of the options!")],
+        choices=[
+            ("regular", "Regular membership (120€/year)"),
+            ("student", "Student membership (40€/year)"),
+            (
+                "supporting",
+                "Supporting membership (40€/year) - Membership without voting rights",
+            ),
+            ("starving", "Starving Hacker - Get in touch with us at info@c3l.lu"),
+        ],
+    )
+
+    payment = RadioField(
+        "Payment Options",
+        validators=[InputRequired("Please select one of the options!")],
+        choices=[
+            ("cash", "by cash"),
+            ("wire transfer", "by wire transfer"),
+            ("digicash", "by DigiCash"),
+            ("bitcoin", "by bitcoin"),
+            ("ethereum", "by ethereum"),
+        ],
+    )
+
+    street = StringField(
+        "Nr., Street",
+        validators=[Length(max=4000)],
+    )
+    zip = StringField(
+        "Postal Code",
+        validators=[Length(max=30)],
+    )
+
+    city = StringField(
+        "City/Town",
+        validators=[Length(max=500)],
+    )
+
+    state = StringField(
+        "State/County/Province",
+        validators=[Length(max=500)],
+    )
+
+    country = StringField(
+        "Country",
+        validators=[Length(max=500)],
+    )
+
+    gpg = StringField(
+        "GPG-ID",
+        validators=[Optional(), Length(max=18)],
+    )
+    jabber = StringField("Jabber Handle", validators=[Optional(), Email()])
+    twitter = StringField("Twitter Handle", validators=[Optional()])
+
+    terms = BooleanField(
+        (
+            "By submitting this membership application, you agree to have read and understood "
+            'the <a href="http://statutes.c3l.lu">statutes of the Chaos Computer Club Lëtzebuerg A.S.B.L.</a>'
+        ),
+        validators=[InputRequired()],
+    )
+
+    minor_member = BooleanField(
+        (
+            "I am under 18 years of age and have the approval of my legal representative."
+        ),
+    )
+
+    submit = SubmitField("Become a member")