diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4dd4f8669..7cdfe918b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Changed
 - Fixed Slack user identity API call with Bearer headers
 - Fixed microsoft-graph login error
+- Re-calculate whether the user is still authenticated after the pipeline in the `do_complete` function.
 
 
 ## [4.1.0](https://github.com/python-social-auth/social-core/releases/tag/4.1.0) - 2021-03-01
diff --git a/social_core/actions.py b/social_core/actions.py
index eee563d8f..0e53c16ef 100644
--- a/social_core/actions.py
+++ b/social_core/actions.py
@@ -33,16 +33,16 @@ def do_complete(backend, login, user=None, redirect_name='next',
                 *args, **kwargs):
     data = backend.strategy.request_data()
 
-    is_authenticated = user_is_authenticated(user)
-    user = user if is_authenticated else None
+    is_authenticated_pre_pipeline = user_is_authenticated(user)
+    pre_pipeline_user = user if is_authenticated_pre_pipeline else None
 
-    partial = partial_pipeline_data(backend, user, *args, **kwargs)
+    partial = partial_pipeline_data(backend, pre_pipeline_user, *args, **kwargs)
     if partial:
-        user = backend.continue_pipeline(partial)
+        post_pipeline_user = backend.continue_pipeline(partial)
         # clean partial data after usage
         backend.strategy.clean_partial_pipeline(partial.token)
     else:
-        user = backend.complete(user=user, *args, **kwargs)
+        post_pipeline_user = backend.complete(user=pre_pipeline_user, *args, **kwargs)
 
     # pop redirect value before the session is trashed on login(), but after
     # the pipeline so that the pipeline can change the redirect if needed
@@ -52,22 +52,23 @@ def do_complete(backend, login, user=None, redirect_name='next',
     # check if the output value is something else than a user and just
     # return it to the client
     user_model = backend.strategy.storage.user.user_model()
-    if user and not isinstance(user, user_model):
-        return user
+    if post_pipeline_user and not isinstance(post_pipeline_user, user_model):
+        return post_pipeline_user
 
-    if is_authenticated:
-        if not user:
+    is_authenticated_post_pipeline = user_is_authenticated(post_pipeline_user)
+    if is_authenticated_post_pipeline:
+        if not post_pipeline_user:
             url = setting_url(backend, redirect_value, 'LOGIN_REDIRECT_URL')
         else:
             url = setting_url(backend, redirect_value,
                               'NEW_ASSOCIATION_REDIRECT_URL',
                               'LOGIN_REDIRECT_URL')
-    elif user:
-        if user_is_active(user):
+    elif post_pipeline_user:
+        if user_is_active(post_pipeline_user):
             # catch is_new/social_user in case login() resets the instance
-            is_new = getattr(user, 'is_new', False)
-            social_user = user.social_user
-            login(backend, user, social_user)
+            is_new = getattr(post_pipeline_user, 'is_new', False)
+            social_user = post_pipeline_user.social_user
+            login(backend, post_pipeline_user, social_user)
             # store last login backend name in session
             backend.strategy.session_set('social_auth_last_login_backend',
                                          social_user.provider)
@@ -82,8 +83,8 @@ def do_complete(backend, login, user=None, redirect_name='next',
                                   'LOGIN_REDIRECT_URL')
         else:
             if backend.setting('INACTIVE_USER_LOGIN', False):
-                social_user = user.social_user
-                login(backend, user, social_user)
+                social_user = post_pipeline_user.social_user
+                login(backend, post_pipeline_user, social_user)
             url = setting_url(backend, 'INACTIVE_USER_URL', 'LOGIN_ERROR_URL',
                               'LOGIN_URL')
     else:
diff --git a/social_core/tests/actions/test_login.py b/social_core/tests/actions/test_login.py
index 869250191..3caa4477c 100644
--- a/social_core/tests/actions/test_login.py
+++ b/social_core/tests/actions/test_login.py
@@ -4,6 +4,14 @@
 
 
 class LoginActionTest(BaseActionTest):
+    def setUp(self):
+        super().setUp()
+        User.set_authenticated(False)
+
+    def tearDown(self):
+        super().tearDown()
+        User.set_authenticated(True)
+
     def test_login(self):
         self.do_login()
 
diff --git a/social_core/tests/models.py b/social_core/tests/models.py
index f49a74656..7a30995a2 100644
--- a/social_core/tests/models.py
+++ b/social_core/tests/models.py
@@ -23,6 +23,7 @@ class User(BaseModel):
     NEXT_ID = 1
     cache = {}
     _is_active = True
+    _is_authenticated = True
 
     def __init__(self, username, email=None, **extra_user_fields):
         self.id = User.next_id()
@@ -39,10 +40,17 @@ def __init__(self, username, email=None, **extra_user_fields):
     def is_active(self):
         return self._is_active
 
+    def is_authenticated(self):
+        return self._is_authenticated
+
     @classmethod
     def set_active(cls, is_active=True):
         cls._is_active = is_active
 
+    @classmethod
+    def set_authenticated(cls, is_authenticated=True):
+        cls._is_authenticated = is_authenticated
+
     def set_password(self, password):
         self.password = password