diff --git a/homeassistant/components/monzo/sensor.py b/homeassistant/components/monzo/sensor.py
index e67e8490c45e..b0d526f58da5 100644
--- a/homeassistant/components/monzo/sensor.py
+++ b/homeassistant/components/monzo/sensor.py
@@ -8,6 +8,7 @@ from homeassistant.components.sensor import (
     SensorDeviceClass,
     SensorEntity,
     SensorEntityDescription,
+    SensorStateClass,
 )
 from homeassistant.core import HomeAssistant, callback
 from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
@@ -35,6 +36,7 @@ ACCOUNT_SENSORS = (
         value_fn=lambda data: data["balance"]["balance"] / 100,
         device_class=SensorDeviceClass.MONETARY,
         suggested_display_precision=2,
+        state_class=SensorStateClass.TOTAL,
     ),
     MonzoSensorEntityDescription(
         key="total_balance",
@@ -42,6 +44,7 @@ ACCOUNT_SENSORS = (
         value_fn=lambda data: data["balance"]["total_balance"] / 100,
         device_class=SensorDeviceClass.MONETARY,
         suggested_display_precision=2,
+        state_class=SensorStateClass.TOTAL,
     ),
     MonzoSensorEntityDescription(
         key="spend_today",
@@ -59,6 +62,7 @@ POT_SENSORS = (
         value_fn=lambda data: data["balance"] / 100,
         device_class=SensorDeviceClass.MONETARY,
         suggested_display_precision=2,
+        state_class=SensorStateClass.TOTAL,
     ),
 )
 
diff --git a/tests/components/monzo/snapshots/test_sensor.ambr b/tests/components/monzo/snapshots/test_sensor.ambr
index 25aab02720f1..35f5062ca201 100644
--- a/tests/components/monzo/snapshots/test_sensor.ambr
+++ b/tests/components/monzo/snapshots/test_sensor.ambr
@@ -5,7 +5,9 @@
       None,
     ]),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
+    }),
     'config_entry_id': <ANY>,
     'config_subentry_id': <ANY>,
     'device_class': None,
@@ -45,6 +47,7 @@
       <EntityStateAttribute.ATTRIBUTION: 'attribution'>: 'Data provided by Monzo',
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'monetary',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Current Account Balance',
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
       <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'GBP',
     }),
     'context': <ANY>,
@@ -117,7 +120,9 @@
       None,
     ]),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
+    }),
     'config_entry_id': <ANY>,
     'config_subentry_id': <ANY>,
     'device_class': None,
@@ -157,6 +162,7 @@
       <EntityStateAttribute.ATTRIBUTION: 'attribution'>: 'Data provided by Monzo',
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'monetary',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Current Account Total balance',
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
       <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'GBP',
     }),
     'context': <ANY>,
@@ -173,7 +179,9 @@
       None,
     ]),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
+    }),
     'config_entry_id': <ANY>,
     'config_subentry_id': <ANY>,
     'device_class': None,
@@ -213,6 +221,7 @@
       <EntityStateAttribute.ATTRIBUTION: 'attribution'>: 'Data provided by Monzo',
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'monetary',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Flex Balance',
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
       <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'EUR',
     }),
     'context': <ANY>,
@@ -285,7 +294,9 @@
       None,
     ]),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
+    }),
     'config_entry_id': <ANY>,
     'config_subentry_id': <ANY>,
     'device_class': None,
@@ -325,6 +336,7 @@
       <EntityStateAttribute.ATTRIBUTION: 'attribution'>: 'Data provided by Monzo',
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'monetary',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Flex Total balance',
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
       <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'EUR',
     }),
     'context': <ANY>,
@@ -341,7 +353,9 @@
       None,
     ]),
     'area_id': None,
-    'capabilities': None,
+    'capabilities': dict({
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
+    }),
     'config_entry_id': <ANY>,
     'config_subentry_id': <ANY>,
     'device_class': None,
@@ -381,6 +395,7 @@
       <EntityStateAttribute.ATTRIBUTION: 'attribution'>: 'Data provided by Monzo',
       <EntityStateAttribute.DEVICE_CLASS: 'device_class'>: 'monetary',
       <EntityStateAttribute.FRIENDLY_NAME: 'friendly_name'>: 'Savings Balance',
+      <SensorEntityCapabilityAttribute.STATE_CLASS: 'state_class'>: <SensorStateClass.TOTAL: 'total'>,
       <EntityStateAttribute.UNIT_OF_MEASUREMENT: 'unit_of_measurement'>: 'USD',
     }),
     'context': <ANY>,