diff --git a/src/model/user/clubmember.rs b/src/model/user/clubmember.rs
new file mode 100644
index 0000000..1fb461e
--- /dev/null
+++ b/src/model/user/clubmember.rs
@@ -0,0 +1,162 @@
+use super::User;
+use crate::{
+    model::{log::Log, notification::Notification, role::Role, user::ManageUserUser},
+    special_user,
+};
+use rocket::async_trait;
+use sqlx::SqlitePool;
+
+special_user!(ClubMemberUser, +"Donau Linz", +"Förderndes Mitglied", +"Unterstützend");
+
+impl ClubMemberUser {
+    async fn add_membership_role(&self, db: &SqlitePool, role: &Role) {
+        sqlx::query!(
+            "INSERT INTO user_role(user_id, role_id) VALUES (?, ?)",
+            self.id,
+            role.id
+        )
+        .execute(db)
+        .await
+        .unwrap();
+    }
+
+    async fn remove_membership_role(&self, db: &SqlitePool) {
+        let role = Role::find_by_name(db, "Förderndes Mitglied").await.unwrap();
+        sqlx::query!(
+            "DELETE FROM user_role WHERE user_id = ? and role_id = ?",
+            self.id,
+            role.id
+        )
+        .execute(db)
+        .await
+        .unwrap();
+
+        let role = Role::find_by_name(db, "Unterstützend").await.unwrap();
+        sqlx::query!(
+            "DELETE FROM user_role WHERE user_id = ? and role_id = ?",
+            self.id,
+            role.id
+        )
+        .execute(db)
+        .await
+        .unwrap();
+
+        let role = Role::find_by_name(db, "Donau Linz").await.unwrap();
+        sqlx::query!(
+            "DELETE FROM user_role WHERE user_id = ? and role_id = ?",
+            self.id,
+            role.id
+        )
+        .execute(db)
+        .await
+        .unwrap();
+    }
+    async fn new_membership_role(&self, db: &SqlitePool, role: &str) -> Result<(), String> {
+        let role = Role::find_by_name(db, role).await.unwrap();
+        self.remove_membership_role(db).await;
+        self.add_membership_role(db, &role).await;
+        Ok(())
+    }
+
+    pub(crate) async fn move_to_regular(
+        self,
+        db: &SqlitePool,
+        modified_by: &ManageUserUser,
+    ) -> Result<(), String> {
+        if self.has_role(db, "Donau Linz").await {
+            return Err(format!("User {self} ist bereits reguläres Mitglied."));
+        }
+
+        self.new_membership_role(db, "Donau Linz").await?;
+
+        Notification::create_for_steering_people(
+            db,
+            &format!(
+                "Liebe Steuerberechtigte, {} war unterstützendes/förderndes Mitglied und ist nun ein neues reguläres Mitglied. 🎉",
+                self.name,
+            ),
+            "Neues Vereinsmitglied",
+            None,
+            None,
+        )
+        .await;
+
+        Log::create(
+            db,
+            format!("{modified_by} has moved user {self} to regular membership."),
+        )
+        .await;
+
+        Ok(())
+    }
+
+    pub(crate) async fn move_to_unterstuetzend(
+        self,
+        db: &SqlitePool,
+        modified_by: &ManageUserUser,
+    ) -> Result<(), String> {
+        if self.has_role(db, "Unterstützend").await {
+            return Err(format!("User {self} ist bereits unterstützendes Mitglied."));
+        }
+
+        self.new_membership_role(db, "Unterstützend").await?;
+
+        if let Some(vorstand) = Role::find_by_name(db, "vorstand").await {
+            Notification::create_for_role(
+                db,
+                &vorstand,
+                &format!(
+                    "Lieber Vorstnad, {} war aktives/förderndes Mitglied und ist nun ein unterstützendes Mitglied.",
+                    self.name,
+                ),
+                "Neues unterstützendes Vereinsmitglied",
+                None,
+                None,
+            )
+            .await;
+        }
+
+        Log::create(
+            db,
+            format!("{modified_by} has moved user {self} to unterstützend membership."),
+        )
+        .await;
+
+        Ok(())
+    }
+
+    pub(crate) async fn move_to_foerdernd(
+        self,
+        db: &SqlitePool,
+        modified_by: &ManageUserUser,
+    ) -> Result<(), String> {
+        if self.has_role(db, "Förderndes Mitglied").await {
+            return Err(format!("User {self} ist bereits förderndes Mitglied."));
+        }
+
+        self.new_membership_role(db, "Förderndes Mitglied").await?;
+
+        if let Some(vorstand) = Role::find_by_name(db, "vorstand").await {
+            Notification::create_for_role(
+                db,
+                &vorstand,
+                &format!(
+                    "Lieber Vorstnad, {} war aktives/unterstützendes Mitglied und ist nun ein förderndes Mitglied.",
+                    self.name,
+                ),
+                "Neues förderndes Vereinsmitglied",
+                None,
+                None,
+            )
+            .await;
+        }
+
+        Log::create(
+            db,
+            format!("{modified_by} has moved user {self} to fördernd membership."),
+        )
+        .await;
+
+        Ok(())
+    }
+}
diff --git a/src/model/user/mod.rs b/src/model/user/mod.rs
index 46a3443..a7dcb1f 100644
--- a/src/model/user/mod.rs
+++ b/src/model/user/mod.rs
@@ -30,6 +30,7 @@ use crate::{tera::admin::user::UserEditForm, AMOUNT_DAYS_TO_SHOW_TRIPS_AHEAD};
 use scheckbuch::ScheckbuchUser;
 
 mod basic;
+pub(crate) mod clubmember;
 mod fee;
 pub(crate) mod foerdernd;
 pub(crate) mod member;
diff --git a/src/tera/admin/user.rs b/src/tera/admin/user.rs
index 2a8b88b..77e5695 100644
--- a/src/tera/admin/user.rs
+++ b/src/tera/admin/user.rs
@@ -7,9 +7,9 @@ use crate::{
         logbook::Logbook,
         role::Role,
         user::{
-            member::Member, scheckbuch::ScheckbuchUser, AdminUser, AllowedToEditPaymentStatusUser,
-            ManageUserUser, User, UserWithDetails, UserWithMembershipPdf,
-            UserWithRolesAndMembershipPdf, VorstandUser,
+            clubmember::ClubMemberUser, member::Member, scheckbuch::ScheckbuchUser, AdminUser,
+            AllowedToEditPaymentStatusUser, ManageUserUser, User, UserWithDetails,
+            UserWithMembershipPdf, UserWithRolesAndMembershipPdf, VorstandUser,
         },
     },
     tera::Config,
@@ -933,6 +933,53 @@ async fn scheckbook_to_regular(
     }
 }
 
+#[derive(FromForm, Debug)]
+pub struct ChangeMembertypeForm {
+    membertype: String,
+}
+
+#[post("/user/<id>/change-membertype", data = "<data>")]
+async fn change_membertype(
+    db: &State<SqlitePool>,
+    admin: ManageUserUser,
+    data: Form<ChangeMembertypeForm>,
+    id: i32,
+) -> Flash<Redirect> {
+    let Some(user) = User::find_by_id(db, id).await else {
+        return Flash::error(
+            Redirect::to("/admin/user"),
+            format!("User with ID {} does not exist!", id),
+        );
+    };
+
+    let Some(user) = ClubMemberUser::new(&db, &user).await else {
+        return Flash::error(
+            Redirect::to("/admin/user"),
+            format!("User {user} ist kein Vereinsmitglied"),
+        );
+    };
+
+    let response = match &*data.membertype {
+        "regular" => user.move_to_regular(db, &admin).await,
+        "unterstuetzend" => user.move_to_unterstuetzend(db, &admin).await,
+        "foerdernd" => user.move_to_foerdernd(db, &admin).await,
+        _ => {
+            return Flash::error(
+                Redirect::to("/admin/user"),
+                format!("Membertype gibt's ned"),
+            )
+        }
+    };
+
+    match response {
+        Ok(_) => Flash::success(
+            Redirect::to(format!("/admin/user/{}", id)),
+            "Mitgliedstyp umgewandelt und Infos versendet",
+        ),
+        Err(e) => Flash::error(Redirect::to(format!("/admin/user/{}", id)), e),
+    }
+}
+
 pub fn routes() -> Vec<Route> {
     routes![
         index,
@@ -962,5 +1009,6 @@ pub fn routes() -> Vec<Route> {
         remove_role,
         //
         scheckbook_to_regular,
+        change_membertype,
     ]
 }