diff --git a/.strict-typing b/.strict-typing
index f267925ad19..d60b99822b9 100644
--- a/.strict-typing
+++ b/.strict-typing
@@ -78,6 +78,7 @@ homeassistant.components.sun.*
 homeassistant.components.switch.*
 homeassistant.components.synology_dsm.*
 homeassistant.components.systemmonitor.*
+homeassistant.components.tag.*
 homeassistant.components.tcp.*
 homeassistant.components.tts.*
 homeassistant.components.upcloud.*
diff --git a/homeassistant/components/tag/__init__.py b/homeassistant/components/tag/__init__.py
index 4a410c6b30b..c05b4416343 100644
--- a/homeassistant/components/tag/__init__.py
+++ b/homeassistant/components/tag/__init__.py
@@ -7,11 +7,12 @@ import uuid
 import voluptuous as vol
 
 from homeassistant.const import CONF_NAME
-from homeassistant.core import HomeAssistant, callback
+from homeassistant.core import Context, HomeAssistant, callback
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers import collection
 import homeassistant.helpers.config_validation as cv
 from homeassistant.helpers.storage import Store
+from homeassistant.helpers.typing import ConfigType
 from homeassistant.loader import bind_hass
 import homeassistant.util.dt as dt_util
 
@@ -75,7 +76,7 @@ class TagStorageCollection(collection.StorageCollection):
         return data
 
     @callback
-    def _get_suggested_id(self, info: dict) -> str:
+    def _get_suggested_id(self, info: dict[str, str]) -> str:
         """Suggest an ID based on the config."""
         return info[TAG_ID]
 
@@ -88,7 +89,7 @@ class TagStorageCollection(collection.StorageCollection):
         return data
 
 
-async def async_setup(hass: HomeAssistant, config: dict):
+async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Tag component."""
     hass.data[DOMAIN] = {}
     id_manager = TagIDManager()
@@ -106,7 +107,9 @@ async def async_setup(hass: HomeAssistant, config: dict):
 
 
 @bind_hass
-async def async_scan_tag(hass, tag_id, device_id, context=None):
+async def async_scan_tag(
+    hass: HomeAssistant, tag_id: str, device_id: str, context: Context | None = None
+) -> None:
     """Handle when a tag is scanned."""
     if DOMAIN not in hass.config.components:
         raise HomeAssistantError("tag component has not been set up.")
diff --git a/homeassistant/components/tag/trigger.py b/homeassistant/components/tag/trigger.py
index 1984505f3a6..ba90f0a9396 100644
--- a/homeassistant/components/tag/trigger.py
+++ b/homeassistant/components/tag/trigger.py
@@ -1,9 +1,11 @@
 """Support for tag triggers."""
 import voluptuous as vol
 
+from homeassistant.components.automation import AutomationActionType
 from homeassistant.const import CONF_PLATFORM
-from homeassistant.core import HassJob
+from homeassistant.core import CALLBACK_TYPE, Event, HassJob, HomeAssistant
 from homeassistant.helpers import config_validation as cv
+from homeassistant.helpers.typing import ConfigType
 
 from .const import DEVICE_ID, DOMAIN, EVENT_TAG_SCANNED, TAG_ID
 
@@ -16,7 +18,12 @@ TRIGGER_SCHEMA = cv.TRIGGER_BASE_SCHEMA.extend(
 )
 
 
-async def async_attach_trigger(hass, config, action, automation_info):
+async def async_attach_trigger(
+    hass: HomeAssistant,
+    config: ConfigType,
+    action: AutomationActionType,
+    automation_info: dict,
+) -> CALLBACK_TYPE:
     """Listen for tag_scanned events based on configuration."""
     trigger_data = automation_info.get("trigger_data", {}) if automation_info else {}
     tag_ids = set(config[TAG_ID])
@@ -24,7 +31,7 @@ async def async_attach_trigger(hass, config, action, automation_info):
 
     job = HassJob(action)
 
-    async def handle_event(event):
+    async def handle_event(event: Event) -> None:
         """Listen for tag scan events and calls the action when data matches."""
         if event.data.get(TAG_ID) not in tag_ids or (
             device_ids is not None and event.data.get(DEVICE_ID) not in device_ids
diff --git a/mypy.ini b/mypy.ini
index f6079c74e13..521e5cc4b7d 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -869,6 +869,17 @@ no_implicit_optional = true
 warn_return_any = true
 warn_unreachable = true
 
+[mypy-homeassistant.components.tag.*]
+check_untyped_defs = true
+disallow_incomplete_defs = true
+disallow_subclassing_any = true
+disallow_untyped_calls = true
+disallow_untyped_decorators = true
+disallow_untyped_defs = true
+no_implicit_optional = true
+warn_return_any = true
+warn_unreachable = true
+
 [mypy-homeassistant.components.tcp.*]
 check_untyped_defs = true
 disallow_incomplete_defs = true