diff --git a/homeassistant/helpers/deprecation.py b/homeassistant/helpers/deprecation.py
index 5a0682fdda2..20dbacde480 100644
--- a/homeassistant/helpers/deprecation.py
+++ b/homeassistant/helpers/deprecation.py
@@ -97,7 +97,7 @@ def get_deprecated(
 
 
 def deprecated_class(
-    replacement: str,
+    replacement: str, *, breaks_in_ha_version: str | None = None
 ) -> Callable[[Callable[_P, _R]], Callable[_P, _R]]:
     """Mark class as deprecated and provide a replacement class to be used instead.
 
@@ -111,7 +111,9 @@ def deprecated_class(
         @functools.wraps(cls)
         def deprecated_cls(*args: _P.args, **kwargs: _P.kwargs) -> _R:
             """Wrap for the original class."""
-            _print_deprecation_warning(cls, replacement, "class", "instantiated")
+            _print_deprecation_warning(
+                cls, replacement, "class", "instantiated", breaks_in_ha_version
+            )
             return cls(*args, **kwargs)
 
         return deprecated_cls
@@ -120,7 +122,7 @@ def deprecated_class(
 
 
 def deprecated_function(
-    replacement: str,
+    replacement: str, *, breaks_in_ha_version: str | None = None
 ) -> Callable[[Callable[_P, _R]], Callable[_P, _R]]:
     """Mark function as deprecated and provide a replacement to be used instead.
 
@@ -134,7 +136,9 @@ def deprecated_function(
         @functools.wraps(func)
         def deprecated_func(*args: _P.args, **kwargs: _P.kwargs) -> _R:
             """Wrap for the original function."""
-            _print_deprecation_warning(func, replacement, "function", "called")
+            _print_deprecation_warning(
+                func, replacement, "function", "called", breaks_in_ha_version
+            )
             return func(*args, **kwargs)
 
         return deprecated_func
@@ -147,15 +151,21 @@ def _print_deprecation_warning(
     replacement: str,
     description: str,
     verb: str,
+    breaks_in_ha_version: str | None,
 ) -> None:
     logger = logging.getLogger(obj.__module__)
+    if breaks_in_ha_version:
+        breaks_in = f" which will be removed in HA Core {breaks_in_ha_version}"
+    else:
+        breaks_in = ""
     try:
         integration_frame = get_integration_frame()
     except MissingIntegrationFrame:
         logger.warning(
-            "%s is a deprecated %s. Use %s instead",
+            "%s is a deprecated %s%s. Use %s instead",
             obj.__name__,
             description,
+            breaks_in,
             replacement,
         )
     else:
@@ -170,22 +180,24 @@ def _print_deprecation_warning(
             )
             logger.warning(
                 (
-                    "%s was %s from %s, this is a deprecated %s. Use %s instead,"
+                    "%s was %s from %s, this is a deprecated %s%s. Use %s instead,"
                     " please %s"
                 ),
                 obj.__name__,
                 verb,
                 integration_frame.integration,
                 description,
+                breaks_in,
                 replacement,
                 report_issue,
             )
         else:
             logger.warning(
-                "%s was %s from %s, this is a deprecated %s. Use %s instead",
+                "%s was %s from %s, this is a deprecated %s%s. Use %s instead",
                 obj.__name__,
                 verb,
                 integration_frame.integration,
                 description,
+                breaks_in,
                 replacement,
             )
diff --git a/homeassistant/util/yaml/loader.py b/homeassistant/util/yaml/loader.py
index 275a51cd760..0d06ddfb757 100644
--- a/homeassistant/util/yaml/loader.py
+++ b/homeassistant/util/yaml/loader.py
@@ -137,7 +137,7 @@ class FastSafeLoader(FastestAvailableSafeLoader, _LoaderMixin):
         self.secrets = secrets
 
 
-@deprecated_class("FastSafeLoader")
+@deprecated_class("FastSafeLoader", breaks_in_ha_version="2024.6")
 class SafeLoader(FastSafeLoader):
     """Provided for backwards compatibility. Logs when instantiated."""
 
@@ -151,7 +151,7 @@ class PythonSafeLoader(yaml.SafeLoader, _LoaderMixin):
         self.secrets = secrets
 
 
-@deprecated_class("PythonSafeLoader")
+@deprecated_class("PythonSafeLoader", breaks_in_ha_version="2024.6")
 class SafeLineLoader(PythonSafeLoader):
     """Provided for backwards compatibility. Logs when instantiated."""
 
diff --git a/tests/helpers/test_deprecation.py b/tests/helpers/test_deprecation.py
index 1216bd6e293..46716263d5b 100644
--- a/tests/helpers/test_deprecation.py
+++ b/tests/helpers/test_deprecation.py
@@ -119,32 +119,52 @@ def test_deprecated_class(mock_get_logger) -> None:
     assert len(mock_logger.warning.mock_calls) == 1
 
 
-def test_deprecated_function(caplog: pytest.LogCaptureFixture) -> None:
+@pytest.mark.parametrize(
+    ("breaks_in_ha_version", "extra_msg"),
+    [
+        (None, ""),
+        ("2099.1", " which will be removed in HA Core 2099.1"),
+    ],
+)
+def test_deprecated_function(
+    caplog: pytest.LogCaptureFixture,
+    breaks_in_ha_version: str | None,
+    extra_msg: str,
+) -> None:
     """Test deprecated_function decorator.
 
     This tests the behavior when the calling integration is not known.
     """
 
-    @deprecated_function("new_function")
+    @deprecated_function("new_function", breaks_in_ha_version=breaks_in_ha_version)
     def mock_deprecated_function():
         pass
 
     mock_deprecated_function()
     assert (
-        "mock_deprecated_function is a deprecated function. Use new_function instead"
-        in caplog.text
-    )
+        f"mock_deprecated_function is a deprecated function{extra_msg}. "
+        "Use new_function instead"
+    ) in caplog.text
 
 
+@pytest.mark.parametrize(
+    ("breaks_in_ha_version", "extra_msg"),
+    [
+        (None, ""),
+        ("2099.1", " which will be removed in HA Core 2099.1"),
+    ],
+)
 def test_deprecated_function_called_from_built_in_integration(
     caplog: pytest.LogCaptureFixture,
+    breaks_in_ha_version: str | None,
+    extra_msg: str,
 ) -> None:
     """Test deprecated_function decorator.
 
     This tests the behavior when the calling integration is built-in.
     """
 
-    @deprecated_function("new_function")
+    @deprecated_function("new_function", breaks_in_ha_version=breaks_in_ha_version)
     def mock_deprecated_function():
         pass
 
@@ -170,14 +190,24 @@ def test_deprecated_function_called_from_built_in_integration(
     ):
         mock_deprecated_function()
     assert (
-        "mock_deprecated_function was called from hue, this is a deprecated function. "
-        "Use new_function instead" in caplog.text
-    )
+        "mock_deprecated_function was called from hue, "
+        f"this is a deprecated function{extra_msg}. "
+        "Use new_function instead"
+    ) in caplog.text
 
 
+@pytest.mark.parametrize(
+    ("breaks_in_ha_version", "extra_msg"),
+    [
+        (None, ""),
+        ("2099.1", " which will be removed in HA Core 2099.1"),
+    ],
+)
 def test_deprecated_function_called_from_custom_integration(
     hass: HomeAssistant,
     caplog: pytest.LogCaptureFixture,
+    breaks_in_ha_version: str | None,
+    extra_msg: str,
 ) -> None:
     """Test deprecated_function decorator.
 
@@ -186,7 +216,7 @@ def test_deprecated_function_called_from_custom_integration(
 
     mock_integration(hass, MockModule("hue"), built_in=False)
 
-    @deprecated_function("new_function")
+    @deprecated_function("new_function", breaks_in_ha_version=breaks_in_ha_version)
     def mock_deprecated_function():
         pass
 
@@ -212,7 +242,8 @@ def test_deprecated_function_called_from_custom_integration(
     ):
         mock_deprecated_function()
     assert (
-        "mock_deprecated_function was called from hue, this is a deprecated function. "
-        "Use new_function instead, please report it to the author of the 'hue' custom "
-        "integration" in caplog.text
-    )
+        "mock_deprecated_function was called from hue, "
+        f"this is a deprecated function{extra_msg}. "
+        "Use new_function instead, please report it to the author of the "
+        "'hue' custom integration"
+    ) in caplog.text
diff --git a/tests/util/yaml/test_init.py b/tests/util/yaml/test_init.py
index 6f6f48813ce..a96d08933ee 100644
--- a/tests/util/yaml/test_init.py
+++ b/tests/util/yaml/test_init.py
@@ -637,7 +637,7 @@ async def test_deprecated_loaders(
         loader_class()
     assert (
         f"{loader_class.__name__} was instantiated from hue, this is a deprecated "
-        f"class. Use {new_class} instead"
+        f"class which will be removed in HA Core 2024.6. Use {new_class} instead"
     ) in caplog.text