diff --git a/src/gsy_e/models/area/scm_dataclasses.py b/src/gsy_e/models/area/scm_dataclasses.py
index 257f0f134..16f06be9e 100644
--- a/src/gsy_e/models/area/scm_dataclasses.py
+++ b/src/gsy_e/models/area/scm_dataclasses.py
@@ -265,9 +265,11 @@ class AreaFees:
 
     def prices_as_dict(self) -> Dict:
         """Return all prices (accumulated values) for the fees in a dictionary."""
-        return {
-            name: fee.price for name, fee in {**self.per_kWh_fees, **self.monthly_fees}.items()
-        }
+        # monthly fees are not accumulated but already set for the market slot,
+        # hence we only report the value of the FeeContainer here
+        monthly_prices = {name: fee.value for name, fee in self.monthly_fees.items()}
+        per_kwh_prices = {name: fee.price for name, fee in self.per_kWh_fees.items()}
+        return {**monthly_prices, **per_kwh_prices}
 
     @property
     def total_per_kWh_fee_price(self):
diff --git a/tests/area/test_scm_data_classes.py b/tests/area/test_scm_data_classes.py
new file mode 100644
index 000000000..eb0ece12c
--- /dev/null
+++ b/tests/area/test_scm_data_classes.py
@@ -0,0 +1,32 @@
+from gsy_e.models.area.scm_dataclasses import AreaFees, FeeContainer
+
+
+class TestAreaFees:
+    # pylint: disable=attribute-defined-outside-init
+
+    def setup_method(self):
+        self.area_fees = AreaFees(
+            grid_import_fee_const=0.2,
+            grid_export_fee_const=0.1,
+            grid_fees_reduction=0.0,
+            per_kWh_fees={
+                "taxes_surcharges": FeeContainer(value=0.01),
+                "other_fee": FeeContainer(value=0.001),
+            },
+            monthly_fees={
+                "monthly_fee": FeeContainer(value=0.002),
+                "other_monthly_fee": FeeContainer(value=0.0002),
+            },
+        )
+
+    def test_price_as_dict_returns_correct_values(self):
+        for fee in self.area_fees.per_kWh_fees.values():
+            fee.price = 0.1
+        for fee in self.area_fees.monthly_fees.values():
+            fee.price = 0.1
+        assert self.area_fees.prices_as_dict() == {
+            "taxes_surcharges": 0.1,
+            "other_fee": 0.1,
+            "monthly_fee": 0.002,
+            "other_monthly_fee": 0.0002,
+        }