diff --git a/homeassistant/components/tado/manifest.json b/homeassistant/components/tado/manifest.json
index 62f7a377239..bea608514bd 100644
--- a/homeassistant/components/tado/manifest.json
+++ b/homeassistant/components/tado/manifest.json
@@ -14,5 +14,5 @@
   },
   "iot_class": "cloud_polling",
   "loggers": ["PyTado"],
-  "requirements": ["python-tado==0.15.0"]
+  "requirements": ["python-tado==0.16.0"]
 }
diff --git a/requirements_all.txt b/requirements_all.txt
index e35a3824571..7757d28ac0b 100644
--- a/requirements_all.txt
+++ b/requirements_all.txt
@@ -2162,7 +2162,7 @@ python-smarttub==0.0.33
 python-songpal==0.15.2
 
 # homeassistant.components.tado
-python-tado==0.15.0
+python-tado==0.16.0
 
 # homeassistant.components.telegram_bot
 python-telegram-bot==13.1
diff --git a/requirements_test_all.txt b/requirements_test_all.txt
index 19772ce2c5e..ab2f42246d0 100644
--- a/requirements_test_all.txt
+++ b/requirements_test_all.txt
@@ -1591,7 +1591,7 @@ python-smarttub==0.0.33
 python-songpal==0.15.2
 
 # homeassistant.components.tado
-python-tado==0.15.0
+python-tado==0.16.0
 
 # homeassistant.components.telegram_bot
 python-telegram-bot==13.1
diff --git a/tests/components/tado/test_config_flow.py b/tests/components/tado/test_config_flow.py
index f0fef1dff5a..d0389980bee 100644
--- a/tests/components/tado/test_config_flow.py
+++ b/tests/components/tado/test_config_flow.py
@@ -78,6 +78,81 @@ async def test_form_invalid_auth(hass: HomeAssistant) -> None:
     assert result2["errors"] == {"base": "invalid_auth"}
 
 
+async def test_form_key_error(hass: HomeAssistant) -> None:
+    """Test we handle KeyError."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+
+    with patch(
+        "homeassistant.components.tado.config_flow.Tado",
+        side_effect=KeyError,
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            {"username": "test-username", "password": "test-password"},
+        )
+
+    assert result2["type"] == "form"
+    assert result2["errors"] == {"base": "invalid_auth"}
+
+
+async def test_form_runtime_error(hass: HomeAssistant) -> None:
+    """Test we handle RuntimeError."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+
+    with patch(
+        "homeassistant.components.tado.config_flow.Tado",
+        side_effect=RuntimeError,
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            {"username": "test-username", "password": "test-password"},
+        )
+
+    assert result2["type"] == "form"
+    assert result2["errors"] == {"base": "cannot_connect"}
+
+
+async def test_form_exception(hass: HomeAssistant) -> None:
+    """Test we handle Exception."""
+    result = await hass.config_entries.flow.async_init(
+        DOMAIN, context={"source": config_entries.SOURCE_USER}
+    )
+
+    with patch(
+        "homeassistant.components.tado.config_flow.Tado",
+        side_effect=Exception,
+    ):
+        result2 = await hass.config_entries.flow.async_configure(
+            result["flow_id"],
+            {"username": "test-username", "password": "test-password"},
+        )
+
+    assert result2["type"] == "form"
+    assert result2["errors"] == {"base": "unknown"}
+
+
+# Write a test for OptionsFlowHandler
+async def test_options_flow(hass: HomeAssistant) -> None:
+    """Test config flow options."""
+    entry = MockConfigEntry(domain=DOMAIN, data={"username": "test-username"})
+    entry.add_to_hass(hass)
+
+    with patch(
+        "homeassistant.components.tado.async_setup_entry",
+        return_value=True,
+    ):
+        await hass.config_entries.async_setup(entry.entry_id)
+        await hass.async_block_till_done()
+
+    result = await hass.config_entries.options.async_init(entry.entry_id)
+    assert result["type"] == "form"
+    assert result["step_id"] == "init"
+
+
 async def test_form_cannot_connect(hass: HomeAssistant) -> None:
     """Test we handle cannot connect error."""
     result = await hass.config_entries.flow.async_init(