diff --git a/tests/components/rfxtrx/conftest.py b/tests/components/rfxtrx/conftest.py
index 88450638d6c..be5c72e6483 100644
--- a/tests/components/rfxtrx/conftest.py
+++ b/tests/components/rfxtrx/conftest.py
@@ -2,7 +2,9 @@
 
 from __future__ import annotations
 
-from unittest.mock import Mock, patch
+from collections.abc import Callable, Coroutine, Generator
+from typing import Any
+from unittest.mock import MagicMock, Mock, patch
 
 from freezegun import freeze_time
 import pytest
@@ -67,7 +69,7 @@ async def setup_rfx_test_cfg(
 
 
 @pytest.fixture(autouse=True)
-async def transport_mock(hass):
+def transport_mock() -> Generator[Mock]:
     """Fixture that make sure all transports are fake."""
     transport = Mock(spec=RFXtrxTransport)
     with (
@@ -78,14 +80,14 @@ async def transport_mock(hass):
 
 
 @pytest.fixture(autouse=True)
-async def connect_mock(hass):
+def connect_mock() -> Generator[MagicMock]:
     """Fixture that make sure connect class is mocked."""
     with patch("RFXtrx.Connect") as connect:
         yield connect
 
 
 @pytest.fixture(autouse=True, name="rfxtrx")
-def rfxtrx_fixture(hass, connect_mock):
+def rfxtrx_fixture(hass: HomeAssistant, connect_mock: MagicMock) -> Mock:
     """Fixture that cleans up threads from integration."""
 
     rfx = Mock(spec=Connect)
@@ -114,19 +116,21 @@ def rfxtrx_fixture(hass, connect_mock):
 
 
 @pytest.fixture(name="rfxtrx_automatic")
-async def rfxtrx_automatic_fixture(hass, rfxtrx):
+async def rfxtrx_automatic_fixture(hass: HomeAssistant, rfxtrx: Mock) -> Mock:
     """Fixture that starts up with automatic additions."""
     await setup_rfx_test_cfg(hass, automatic_add=True, devices={})
     return rfxtrx
 
 
 @pytest.fixture
-async def timestep(hass):
+def timestep(
+    hass: HomeAssistant,
+) -> Generator[Callable[[int], Coroutine[Any, Any, None]]]:
     """Step system time forward."""
 
     with freeze_time(utcnow()) as frozen_time:
 
-        async def delay(seconds):
+        async def delay(seconds: int) -> None:
             """Trigger delay in system."""
             frozen_time.tick(delta=seconds)
             async_fire_time_changed(hass)