diff --git a/AGENTS.md b/AGENTS.md
index 3c776cb5..6f1ae5fe 100644
--- a/AGENTS.md
+++ b/AGENTS.md
@@ -82,7 +82,7 @@ The job status is derived from its tasks via `post_process()`. The evaluation pr
 1. Any PENDING task → job becomes PENDING (unless job is CANCELING)
 2. Any IN_PROGRESS task → job becomes IN_PROGRESS (unless job is CANCELING)
 3. If job was `CANCELING` → job becomes `CANCELED`
-4. Otherwise the job is finished and its final status is computed from the combination of `SUCCESS`, `WARNING`, and `FAILURE` tasks
+4. Otherwise the job is finished and its final status is computed from the combination of `SUCCESS`, `WARNING`, and `FAILURE` tasks. If none of those are present but canceled tasks are, the job becomes `CANCELED`
 
 ### Job Actions
 
diff --git a/adit/core/models.py b/adit/core/models.py
index 8d587cfa..4b5a1106 100644
--- a/adit/core/models.py
+++ b/adit/core/models.py
@@ -291,10 +291,12 @@ def post_process(self, suppress_email=False) -> bool:
         has_success = self.tasks.filter(status=DicomTask.Status.SUCCESS).exists()
         has_warning = self.tasks.filter(status=DicomTask.Status.WARNING).exists()
         has_failure = self.tasks.filter(status=DicomTask.Status.FAILURE).exists()
+        has_canceled = self.tasks.filter(status=DicomTask.Status.CANCELED).exists()
 
+        # An "All tasks ..." message would be untrue when some tasks were canceled instead.
         if has_success and not has_warning and not has_failure:
             self.status = DicomJob.Status.SUCCESS
-            self.message = "All tasks succeeded."
+            self.message = "Some tasks were canceled." if has_canceled else "All tasks succeeded."
         elif has_success and has_failure or has_warning and has_failure:
             self.status = DicomJob.Status.FAILURE
             self.message = "Some tasks failed."
@@ -303,12 +305,17 @@ def post_process(self, suppress_email=False) -> bool:
             self.message = "Some tasks have warnings."
         elif has_warning:
             self.status = DicomJob.Status.WARNING
-            self.message = "All tasks have warnings."
+            self.message = (
+                "Some tasks have warnings." if has_canceled else "All tasks have warnings."
+            )
         elif has_failure:
             self.status = DicomJob.Status.FAILURE
-            self.message = "All tasks failed."
+            self.message = "Some tasks failed." if has_canceled else "All tasks failed."
+        elif has_canceled:
+            self.status = DicomJob.Status.CANCELED
+            self.message = "All tasks were canceled."
         else:
-            # at least one of success, warnings or failures must be > 0
+            # at least one of success, warnings, failures or cancellations must be > 0
             raise AssertionError(f"Invalid task status list of {self}.")
 
         self.end = timezone.now()
diff --git a/adit/core/tests/test_models.py b/adit/core/tests/test_models.py
index 47a3f809..0ead0f54 100644
--- a/adit/core/tests/test_models.py
+++ b/adit/core/tests/test_models.py
@@ -168,6 +168,75 @@ def test_job_post_process_canceling_status(self):
         assert job.status == DicomJob.Status.CANCELED
         assert job.end is None
 
+    @pytest.mark.django_db
+    def test_job_post_process_all_tasks_canceled(self):
+        # Status is PENDING, not CANCELING, so this reaches the final evaluation, where
+        # an all-canceled job raised AssertionError (e.g. all tasks killed from the admin).
+        job = ExampleTransferJobFactory.create(status=DicomJob.Status.PENDING)
+
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.CANCELED)
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.CANCELED)
+
+        result = job.post_process()
+        job.refresh_from_db()
+
+        assert result is True
+        assert job.status == DicomJob.Status.CANCELED
+        assert job.message == "All tasks were canceled."
+        assert job.end is not None
+
+    @pytest.mark.django_db
+    def test_job_post_process_canceled_task_does_not_mask_failure(self):
+        # The canceled branch is last in the chain, so it must not shadow a failure.
+        job = ExampleTransferJobFactory.create(status=DicomJob.Status.PENDING)
+
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.CANCELED)
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.FAILURE)
+
+        job.post_process()
+        job.refresh_from_db()
+
+        assert job.status == DicomJob.Status.FAILURE
+
+    @pytest.mark.django_db
+    def test_job_post_process_success_and_canceled_does_not_claim_all_succeeded(self):
+        job = ExampleTransferJobFactory.create(status=DicomJob.Status.PENDING)
+
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.SUCCESS)
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.CANCELED)
+
+        job.post_process()
+        job.refresh_from_db()
+
+        assert job.status == DicomJob.Status.SUCCESS
+        assert job.message == "Some tasks were canceled."
+
+    @pytest.mark.django_db
+    def test_job_post_process_failure_and_canceled_does_not_claim_all_failed(self):
+        job = ExampleTransferJobFactory.create(status=DicomJob.Status.PENDING)
+
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.FAILURE)
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.CANCELED)
+
+        job.post_process()
+        job.refresh_from_db()
+
+        assert job.status == DicomJob.Status.FAILURE
+        assert job.message == "Some tasks failed."
+
+    @pytest.mark.django_db
+    def test_job_post_process_warning_and_canceled_does_not_claim_all_warned(self):
+        job = ExampleTransferJobFactory.create(status=DicomJob.Status.PENDING)
+
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.WARNING)
+        ExampleTransferTaskFactory.create(job=job, status=DicomTask.Status.CANCELED)
+
+        job.post_process()
+        job.refresh_from_db()
+
+        assert job.status == DicomJob.Status.WARNING
+        assert job.message == "Some tasks have warnings."
+
     @pytest.mark.django_db
     @time_machine.travel("2025-01-15 14:30:00+00:00")
     def test_job_timezone_correctness(self):