diff --git a/pyodk/_endpoints/submissions.py b/pyodk/_endpoints/submissions.py
index 3ec4609..c56d2dc 100644
--- a/pyodk/_endpoints/submissions.py
+++ b/pyodk/_endpoints/submissions.py
@@ -1,10 +1,13 @@
+import builtins
 import logging
 from collections.abc import Iterable
 from datetime import datetime
+from pathlib import Path
 from typing import Any
 
 from pyodk._endpoints import bases
 from pyodk._endpoints.comments import Comment, CommentService
+from pyodk._endpoints.submission_attachments import SubmissionAttachmentService
 from pyodk._utils import validators as pv
 from pyodk._utils.session import Session
 from pyodk.errors import PyODKError
@@ -198,6 +201,8 @@ def create(
         project_id: int | None = None,
         device_id: str | None = None,
         encoding: str = "utf-8",
+        # Here we must use imported typing.List to avoid conflict with .list method
+        attachments: builtins.list[str] | None = None,
     ) -> Submission:
         """
         Create a Submission.
@@ -219,6 +224,7 @@ def create(
         :param project_id: The id of the project this form belongs to.
         :param device_id: An optional deviceID associated with the submission.
         :param encoding: The encoding of the submission XML, default "utf-8".
+        :param attachments: A list of file paths to upload as attachments.
         """
         try:
             pid = pv.validate_project_id(project_id, self.default_project_id)
@@ -239,7 +245,26 @@ def create(
             data=xml.encode(encoding=encoding),
         )
         data = response.json()
-        return Submission(**data)
+        submission = Submission(**data)
+        instance_id = submission.instanceId
+
+        # If there are attachments, upload each one
+        if attachments:
+            attachment_svc = SubmissionAttachmentService(session=self.session)
+            for attachment in attachments:
+                attachment_path = Path(attachment)
+                file_name = attachment_path.name
+                upload_success = attachment_svc.upload(
+                    file_path_or_bytes=attachment,
+                    instance_id=instance_id,
+                    file_name=file_name,
+                    form_id=fid,
+                    project_id=pid,
+                )
+                if not upload_success:
+                    log.error(f"Failed to upload attachment: {attachment}")
+
+        return submission
 
     def _put(
         self,
diff --git a/tests/endpoints/test_submissions.py b/tests/endpoints/test_submissions.py
index c0543cf..6f4f80b 100644
--- a/tests/endpoints/test_submissions.py
+++ b/tests/endpoints/test_submissions.py
@@ -1,7 +1,10 @@
 from unittest import TestCase
 from unittest.mock import MagicMock, patch
 
-from pyodk._endpoints.submission_attachments import SubmissionAttachment
+from pyodk._endpoints.submission_attachments import (
+    SubmissionAttachment,
+    SubmissionAttachmentService,
+)
 from pyodk._endpoints.submissions import Submission
 from pyodk._utils.session import Session
 from pyodk.client import Client
@@ -73,6 +76,52 @@ def test_create__ok(self):
                 )
                 self.assertIsInstance(observed, Submission)
 
+    def test_create_with_attachments__ok(self):
+        """Should return a Submission object, with attachments uploaded."""
+        fixture = submissions_data.test_submissions
+        submission_file_path = (
+            RESOURCES / "attachments" / "submission_image.png"
+        ).as_posix()
+
+        with (
+            patch.object(Session, "request") as mock_session,
+            patch.object(
+                SubmissionAttachmentService, "upload", return_value={"success": True}
+            ) as mock_upload,
+        ):
+            mock_session.return_value.status_code = 200
+            mock_session.return_value.json.return_value = fixture["response_data"][0]
+
+            with Client() as client:
+                # Upload the same attachment 3 times
+                observed = client.submissions.create(
+                    project_id=fixture["project_id"],
+                    form_id=fixture["form_id"],
+                    xml=submissions_data.test_xml,
+                    attachments=[
+                        submission_file_path,
+                        submission_file_path,
+                        submission_file_path,
+                    ],
+                )
+                self.assertIsInstance(observed, Submission)
+
+                # Use default
+                observed = client.submissions.create(
+                    form_id=fixture["form_id"],
+                    xml=submissions_data.test_xml,
+                )
+                self.assertIsInstance(observed, Submission)
+
+        # Now test if upload success
+        mock_upload.assert_called_with(
+            file_path_or_bytes=submission_file_path,
+            instance_id=observed.instanceId,
+            file_name="submission_image.png",
+            form_id=fixture["form_id"],
+            project_id=fixture["project_id"],
+        )
+
     def test__put__ok(self):
         """Should return a Submission object."""
         fixture = submissions_data.test_submissions