diff --git a/app/pipeline/file_manager.py b/app/pipeline/file_manager.py
index d74c01a..f5fa34b 100644
--- a/app/pipeline/file_manager.py
+++ b/app/pipeline/file_manager.py
@@ -38,6 +38,7 @@ class RemoteFile:
 class InputFileScanResult:
     valid_files: list[RemoteFile]
     invalid_files: list[RemoteFile]
+    skipped_files: list[RemoteFile]
 
 
 class SMBClientConnection:
@@ -285,20 +286,32 @@ def next_run_number(out_day_dir: str, samba_conn) -> int:
     return max(numbers, default=0) + 1
 
 
-def scan_input_files(input_dir: str, samba_conn) -> InputFileScanResult:
+def scan_input_files(
+    input_dir: str, samba_conn, processed_dir: str | None = None
+) -> InputFileScanResult:
     valid_files: list[RemoteFile] = []
     invalid_files: list[RemoteFile] = []
+    skipped_files: list[RemoteFile] = []
 
     for file_name in _list_samba_files(input_dir, samba_conn):
         if not file_name.lower().endswith(".xml"):
             continue
         remote_path = join_path(input_dir, file_name)
+        if processed_dir and _is_already_processed(
+            file_name, processed_dir, samba_conn
+        ):
+            skipped_files.append(RemoteFile(path=remote_path, name=file_name))
+            continue
         if validate_file_name(file_name):
             valid_files.append(RemoteFile(path=remote_path, name=file_name))
         else:
             invalid_files.append(RemoteFile(path=remote_path, name=file_name))
 
-    return InputFileScanResult(valid_files=valid_files, invalid_files=invalid_files)
+    return InputFileScanResult(
+        valid_files=valid_files,
+        invalid_files=invalid_files,
+        skipped_files=skipped_files,
+    )
 
 
 def move_file_to_error(
@@ -393,6 +406,11 @@ def _list_samba_files(input_dir: str, samba_conn) -> list[str]:
     return items
 
 
+def _is_already_processed(file_name: str, processed_dir: str, samba_conn) -> bool:
+    with samba_conn:
+        return samba_conn.path_exists(join_path(processed_dir, file_name))
+
+
 def _next_available_samba_target(dir_path: str, file_name: str, samba_conn) -> str:
     with samba_conn:
         if not samba_conn.path_exists(dir_path):
diff --git a/app/pipeline/service.py b/app/pipeline/service.py
index 9122786..a58030f 100644
--- a/app/pipeline/service.py
+++ b/app/pipeline/service.py
@@ -120,9 +120,15 @@ def run_batch(
     log_lines: list[str] = []
     log_lines.append(f"{_now()} | preflight access checks: ok")
 
-    scan_result = scan_input_files(input_dir=input_dir, samba_conn=samba_conn)
+    scan_result = scan_input_files(
+        input_dir=input_dir,
+        samba_conn=samba_conn,
+        processed_dir=run_context.processed_dir,
+    )
     log_lines.append(
-        f"{_now()} | scan files: valid={len(scan_result.valid_files)} invalid={len(scan_result.invalid_files)} "
+        f"{_now()} | scan files: valid={len(scan_result.valid_files)} "
+        f"invalid={len(scan_result.invalid_files)} "
+        f"skipped={len(scan_result.skipped_files)}"
     )
 
     report_file_name = build_report_file_name(
@@ -208,7 +214,10 @@ def run_batch(
     )
     messages.append(
         _build_result_message(
-            status=status, processed=processed, partial=partial, errors=errors
+            status=status,
+            processed=processed,
+            partial=partial,
+            errors=errors,
         )
     )
     duration_seconds = round(time.perf_counter() - started_at, 2)
@@ -254,6 +263,9 @@ def _process_files(
     log_lines: list[str],
     stage_timings: dict[str, float],
 ) -> None:
+    for remote_file in scan_result.skipped_files:
+        log_lines.append(f"{_now()} | skip already processed: {remote_file.path}")
+
     for remote_file in scan_result.invalid_files:
         reason = "Некорректное имя XML-файла"
         moved_to = ""
diff --git a/tests/unit/test_file_manager.py b/tests/unit/test_file_manager.py
index 238fb1c..b3408fa 100644
--- a/tests/unit/test_file_manager.py
+++ b/tests/unit/test_file_manager.py
@@ -85,6 +85,26 @@ def test_scan_input_files_splits_valid_and_invalid(tmp_path: Path) -> None:
     result = scan_input_files(in_dir, samba)
     assert len(result.valid_files) == 1
     assert len(result.invalid_files) == 1
+    assert len(result.skipped_files) == 0
+
+
+def test_scan_input_files_skips_already_processed(tmp_path: Path) -> None:
+    samba = FakeSamba(tmp_path)
+    in_dir = "Exchange\\SMBDEMO\\test"
+    processed_dir = "Exchange\\SMBDEMO\\Processed"
+    local_in_dir = tmp_path / "Exchange" / "SMBDEMO" / "test"
+    local_processed_dir = tmp_path / "Exchange" / "SMBDEMO" / "Processed"
+    local_in_dir.mkdir(parents=True)
+    local_processed_dir.mkdir(parents=True)
+
+    file_name = "SKO115FZ_01_123456789_20260616_X00001.xml"
+    (local_in_dir / file_name).write_text("ok", encoding="utf-8")
+    (local_processed_dir / file_name).write_text("already done", encoding="utf-8")
+
+    result = scan_input_files(in_dir, samba, processed_dir=processed_dir)
+    assert len(result.valid_files) == 0
+    assert len(result.invalid_files) == 0
+    assert [item.name for item in result.skipped_files] == [file_name]
 
 
 def test_next_run_number_reads_existing_dirs(tmp_path: Path) -> None: