diff --git a/README.md b/README.md
index 8486f35..96d5dd6 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,8 @@ You can configure a list of clients (Relying Parties) in a `clients.yaml` file w
   default: true
   # If you want the client to be granted to every users, regardless their account configuration
   granted_to_all_users: true
+  # If you want users to have performed recent second factor authentication before accessing this client, set this setting to true
+  enforce_mfa_auth: true
 ```
 
 On the first run, BasicOIDC will create a new administrator with credentials `admin` / `admin`. On first login you will have to change these default credentials.
@@ -32,7 +34,7 @@ In order to run BasicOIDC for development, you will need to create a least an em
 * [x] `authorization_code` flow
 * [x] Client authentication using secrets 
 * [x] Bruteforce protection 
-* [x] 2 factor authentication
+* [x] 2 factors authentication
   * [x] TOTP (authenticator app)
   * [x] Using a security key (Webauthn)
 * [ ] Fully responsive webui
diff --git a/src/controllers/openid_controller.rs b/src/controllers/openid_controller.rs
index f014243..025f6d1 100644
--- a/src/controllers/openid_controller.rs
+++ b/src/controllers/openid_controller.rs
@@ -13,7 +13,7 @@ use crate::actors::openid_sessions_actor::{OpenIDSessionsActor, Session, Session
 use crate::actors::users_actor::UsersActor;
 use crate::actors::{openid_sessions_actor, users_actor};
 use crate::constants::*;
-use crate::controllers::base_controller::build_fatal_error_page;
+use crate::controllers::base_controller::{build_fatal_error_page, redirect_user};
 use crate::data::action_logger::{Action, ActionLogger};
 use crate::data::app_config::AppConfig;
 use crate::data::client::{ClientID, ClientManager};
@@ -21,6 +21,7 @@ use crate::data::code_challenge::CodeChallenge;
 use crate::data::current_user::CurrentUser;
 use crate::data::id_token::IdToken;
 use crate::data::jwt_signer::{JWTSigner, JsonWebKey};
+use crate::data::login_redirect::{get_2fa_url, LoginRedirect};
 
 use crate::data::session_identity::SessionIdentity;
 use crate::data::user::User;
@@ -128,6 +129,7 @@ fn error_redirect(query: &AuthorizeQuery, error: &str, description: &str) -> Htt
 }
 
 pub async fn authorize(
+    req: HttpRequest,
     user: CurrentUser,
     id: Identity,
     query: web::Query<AuthorizeQuery>,
@@ -142,6 +144,12 @@ pub async fn authorize(
         Some(c) => c,
     };
 
+    // Check if 2FA is required
+    if client.enforce_2fa_auth && user.should_request_2fa_for_critical_functions() {
+        let uri = get_2fa_url(&LoginRedirect::from_req(&req), true);
+        return redirect_user(&uri);
+    }
+
     let redirect_uri = query.redirect_uri.trim().to_string();
     if !redirect_uri.starts_with(&client.redirect_uri) {
         return HttpResponse::BadRequest().body(build_fatal_error_page("Redirect URI is invalid!"));
diff --git a/src/data/client.rs b/src/data/client.rs
index 7097580..1cdf75d 100644
--- a/src/data/client.rs
+++ b/src/data/client.rs
@@ -28,6 +28,10 @@ pub struct Client {
     /// Specify whether a client is granted to all users
     #[serde(default = "bool::default")]
     pub granted_to_all_users: bool,
+
+    /// Specify whether recent Second Factor Authentication is required to access this client
+    #[serde(default = "bool::default")]
+    pub enforce_2fa_auth: bool,
 }
 
 impl PartialEq for Client {
diff --git a/src/data/critical_route.rs b/src/data/critical_route.rs
index 0e54e96..f8a2a85 100644
--- a/src/data/critical_route.rs
+++ b/src/data/critical_route.rs
@@ -20,10 +20,10 @@ impl FromRequest for CriticalRoute {
                 .await
                 .expect("Failed to extract user identity!");
 
-            if current_user.should_request_2fa_for_critical_function() {
-                let url = get_2fa_url(&LoginRedirect::from_req(&req), true);
+            if current_user.should_request_2fa_for_critical_functions() {
+                let uri = get_2fa_url(&LoginRedirect::from_req(&req), true);
 
-                return Err(FromRequestRedirect::new(url));
+                return Err(FromRequestRedirect::new(uri));
             }
 
             Ok(Self)
diff --git a/src/data/current_user.rs b/src/data/current_user.rs
index 1a50b73..d1532ab 100644
--- a/src/data/current_user.rs
+++ b/src/data/current_user.rs
@@ -22,7 +22,7 @@ pub struct CurrentUser {
 }
 
 impl CurrentUser {
-    pub fn should_request_2fa_for_critical_function(&self) -> bool {
+    pub fn should_request_2fa_for_critical_functions(&self) -> bool {
         self.user.has_two_factor()
             && self
                 .last_2fa_auth