diff --git a/homeassistant/components/toon/sensor.py b/homeassistant/components/toon/sensor.py
index 62829bf20ad..371672e184e 100644
--- a/homeassistant/components/toon/sensor.py
+++ b/homeassistant/components/toon/sensor.py
@@ -182,6 +182,8 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         name="Gas Cost Today",
         section="gas_usage",
         measurement="day_cost",
+        device_class=SensorDeviceClass.MONETARY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         native_unit_of_measurement=CURRENCY_EUR,
         icon="mdi:gas-cylinder",
         cls=ToonGasMeterDeviceSensor,
@@ -230,6 +232,8 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         name="Energy Cost Today",
         section="power_usage",
         measurement="day_cost",
+        device_class=SensorDeviceClass.MONETARY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         native_unit_of_measurement=CURRENCY_EUR,
         icon="mdi:power-plug",
         cls=ToonElectricityMeterDeviceSensor,
@@ -350,6 +354,8 @@ SENSOR_ENTITIES: tuple[ToonSensorEntityDescription, ...] = (
         name="Water Cost Today",
         section="water_usage",
         measurement="day_cost",
+        device_class=SensorDeviceClass.MONETARY,
+        state_class=SensorStateClass.TOTAL_INCREASING,
         native_unit_of_measurement=CURRENCY_EUR,
         icon="mdi:water-pump",
         entity_registry_enabled_default=False,